Zero Concerns

Story by DragonMasterX on SoFurry

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If you didn't have enough with the sexy Hyper Dimension Neptunia foursome I wrote about some weeks ago, get ready for even more cutesy anime growy silliness with this sequel of even BIGGER proportions!


This is a commission for Rosanon (DeviantArt.com)

Disclaimer: The characters and locations found in the following story are all original content from the videogame series Hyper Dimension Neptunia and thus belong to their creators.

Warning: This story contains growth, macro, mega macro, giga macro, tera macro, breast expansion, butt growth and voyeurism. Also, lesbians too!

Note: This picks up right after the "Vert's New Fetish" story.

Zero Concerns, by DragonMasterX.

The latest and biggest hotel the nation Leanbox had seen had become the site of an orgy of particularly ridiculous proportions. Leanbox representative Vert and Lowee's CPU Blanc as well as Planeptune and Lastation's candidates had engaged in debauchery the likes of which no bathhouse in Gamindustri had seen before. It had all started as a typical hot springs group bath, but circumstances escalated when the CPU candidates Uni and Nepgear began growing larger and larger to sizes giantesses could only dream of. With Blanc involved and thusly influenced by the same phenomenon that caused the first two to grow, she took control of Vert, who couldn't help herself as she was utterly dominated. The giant Blanc humiliated and utilized the fellow CPU as little more than a sex toy, and stopped at nothing to feel bliss at Vert's expense.

While Blanc had succumbed to a stupor of intense pleasure, Vert, having lost count of the orgasms her body had experienced throughout the fantastic event, had expended all of her energy pleasuring herself to the sight of new lovers Uni and Nepgear. It was during a desperate and passionate exchange that love had bloomed and lust concreted between the two, leading the enormous young ladies into frenetic sex that hardly saw the end even when the sun began to set.

Unbeknownst to the couple, there had been an additional voyeur who had gone unnoticed. Through binoculars, a mysterious figure had witnessed all that had transpired within Vert's hotel bath house. "Oh, who would've thought hopping off the Zero Dimension would be so rewarding today?!" the person giggled with barely bated excitement. The figure hopped off a tree and landed on the grassy hills surrounding the hotel.

Dusk's last vestiges of direct sunlight bathed a black-clad Neptune. Long bangs of silky lilac hair flowed down the young adult's feminine form, most of her mane resting at her back. The purple eyed computer bug hunter jostled her black and violet parka hoodie and kicked her sneakers before stretching. "No duh that spying on my little extra-dimensional sis ended up being so fun!" Neptune laughed to herself as vivid images of the lewd encounters in the bath house replayed in her mind. "This must be why the bad guys are always following us protagonists. If we don't do awesome stuff, then they can at least have a look at sexy shenanigans! Hmm, speaking of which..." she paused.

Neptune tapped a finger to her cheek, a smile growing on her face. "Bug hunting's amazing, but I think I can take a break from it today since there's much, much fatter loot I can abscond with today!" With her sights set again on the bathhouse, Neptune drank in the darkening image of Uni's and Nepgear's supersized romp before she made a dash towards the hotel. "If I've been playing close attention to the story since the plot started to "thicken"..." she paused to snicker a little at her own pun, "I think I've a good idea of what gave Uni that crazy-good new skill."

Infiltrating the hotel was a piece of cake for Neptune. "No need for stealth mechanics when Ms. Busty's little-sister fantasies made her chase all of her staff out for the day! Gotta love convenient plot devices," the bug hunter chuckled to herself as she opened the front door to the bath house's changing room. "Aaaand... bingo!" Neptune energetically exclaimed after opening locker after locker and finding what she had been looking for.

In Neptune's hands was a musty old scroll. The piece of parchment looked old and worn, and the scripture within seemed smudged. In spite of the prize's poor condition, Neptune appeared especially pleased with herself. "Knew there had to be a McGuffin related to so much silliness. Nothing like a good 'ol cheat code to skip on some level grinding, eh Uni? Haha!"

Holding the magic scroll in one hand and a notebook in the other, Neptune glanced from one item to another before pressing them together. She opened the tiny tome, "Now, my McGuffin eater, eat the McGuffin, om nom nom!" she happily sang out as if her notebook had ears. However, no sooner than Neptune finished talking, she closed the notebook around the old parchment and in response, the notebook started to glow. Suddenly, what little parchment overflowed between the pages of her notebook disappeared into the blinding light. "Good job, Nep-note. Now, what do you have for me?"

"Ugh, do you have to keep using that stupid ass name?" a nagging voice came out of the notebook. "I thought you and that brainless noggin of yours were focused on bug hunting. What's this junk you're putting in now?"

"Hush, Croire," Neptune addressed one of the several entities captured within her special note, "This isn't just any regular old junk. It's super extra special old junk!"

"You're making way less sense than usual," Croire communicated telepathically, but one could easily tell from her tone that she was being spiteful. "Can't you get at least two neurons working together and tell me why the heck are you rummaging through people's lockers like some common thief?"

"A thief?!" Neptune gasped, "Searching lockers that don't belong to you is totally legit RPG exploration tactics, you silly fairy. Now stop doing that talky thing with your mental mouth and let me focus on the good stuff!"

The Nep-note was a special little notepad with a very special functionality. Upon capturing anything within its pages, it joined Neptune's catalogues. As a bug hunter, Neptune spent her time hopping dimensions and catching bugs, filling page after page with their information, but there was also an additional feature.

Every creature or item she catalogued allowed Neptune to call upon the selected entry's ability or skill. Croire was one of the many creatures that dwelled inside of the Nep-note, and the fairy-like entity's particular skill was what enabled Neptune to jump across the different dimensions. With the scroll added to the list of items the Nep-tone had acquired, Neptune very quickly found the new entry and tapped on it. "There it is! Ahh, sorted lists are so convenient. Okay, hmm..."

"Is this... is this one of the perverted air-head bimbo ninja's scrolls?" Croire asked from within the Nep-note's pages, since Neptune would not let the chaotic being out.

"Just as I deduced!" Neptune cried out exuberantly as she read the repaired item that her Nep-note had stored, "Lots of power in here. Uni was barely scratching the surface with what she found. Aww, it's so cute when the main character smaller versions try to power up! Unless you've got red hair and your shtick is a blazing sword, I guess."

"This is incredible! Even for that two-bit cow-titted dimwit," Croire remarked as she read the scroll along with Neptune, who was quick to interject.

"Hey, hold on. DLC can be just as nice if it's handled properly, Croire. Case in point, when reconstructed and you get rid of all the smudge off the letters, this is actually a pretty dang powerful ninja scroll!"

"This is anything but a ninja scroll, you dumbass. The power it holds is limitless. It might even set me free...!" Croire anticipated greatness from this opportunity, but Neptune was quick to hurl her back into the annex of her Nep-note.

"Nuh uh. No Chaotic-Evil things today, Croire. We're... Well, I'm gonna have fun this time. Chaotic-Neutral-like!" Neptune grinned as she closed the Nep-note and clapped it against a palm. "Oh! But I don't wanna try my new powers out in here. Feels a little too cramped for my taste. Back to the forest!" And with that simple command, Croire's warp ability made Neptune vanish from sight.

Right next to the tree the bug hunter had been using to spy on the giant on-going orgy, a giddy Neptune materialized. She felt overwhelmed with joy, already shivering with anticipation as she thought of the possibilities of commanding such vast amount of power. She smacked her cheeks with her palms, grinning and giggling like an overly excited schoolgirl as she attempted to psyche herself. "Now," she looked down at her own chest, holding her perky breasts up. "Let's see if I can level up to Ms. Busty's plateau of jiggliness!"

Thanks to the Nep-note's mysterious powers of assimilation, Neptune's desires in direct correlation to its contents manifested without delay. Over the seconds that followed, Neptune experienced increased heat and pressure coming from her torso. "Ahhh...! Nnngh, the script never said anything about this feeling so good!" she moaned. Neptune wasn't precisely lacking in curves, but her chest did indeed start to grow. And with additional size and mass, the parka she was wearing started feeling increasingly tighter. Neptune could feel her breasts pushing out against her fingers, making it harder to keep them stuffed in her now undersized bra. Small whimpers escaped her lips as she heard the zipper on her parka grinding down; both sides of the outfit being forced apart by the expanding mammaries. "T-to hell with Ms. Busty's measurements. This feels too good to stop here!"

Neptune focused her powers to not only continue once Vert's once prodigious bust size had been reached, but she also willed her boobs to enlarge quicker. With every passing second, she heard the parka's zipper zip all the way down until the parka was forced loose and open, revealing her extremely stretched white shirt underneath. The busty bug hunter panted, happily watching and feeling her bust pack on more and more weight, creating a huge pair of breasts on her chest that were being clearly outlined by her shirt.

As it was stretched, the white fabric pulled up over Neptune's belly-button and eventually left her mid-section altogether. What should've been a comfy t-shirt was now turning into a mere tube-top almost strictly monopolized by her ballooning chest. A sigh of relief left Neptune's mouth when she heard the hooks on her bra come apart. If she hadn't been wearing the horrendously stretched shirt and parka, Neptune's now head-sized sweater puppies would have slung her underwear into the air from the pressure release. "I-is this what Uni, Nepgear and Blanc felt?" a sensorial overwhelmed Neptune practically drooled out as she squeezed her fingers against her newly supersized breasts.

It wasn't going to be long before her shirt also suffered the consequences to such negligence to clothes size. The textile weave had been elastic enough throughout its unexpected and sudden change in circumstances, but Neptune's gigantic tits were causing it to split and bust at the seams. Fair skinned flesh was starting to pour out from the shirt's faults and widening holes, making Neptune hiss in absolute bliss. "I-I can't hold it in...!" she cried out in pleasure as she almost fell down, but managed to support herself with her back against the tree behind her. "I-I don't wanna, either! I want more. I want to feel the whole package!"

Just as Neptune commanded, her body reacted to the ensuing surge of energy welling up from within. Before she lost her grip on her Nep-note and dropped it, however, Neptune was quick to slip it in the prominent cleavage that she had just formed. The few pockets she had on her clothes wouldn't be of much use soon. Her hips wiggled and shook as they too joined in the expansion. Growing to the sides, Neptune felt her entire pelvis widening, pushing out against her underwear and short shorts. Her cute little butt neatly packed in black fabric began to inflate and take on an increasingly rounder shape. The shorts inevitably got caught into the deepening ass crack that formed as a result of Neptune's gluts taking on more and more size, creating an attractively plump heart shape for her behind. "Nnnghh...E-everything feels so tight," she desperately panted, "It feels like I'm going to blow up at this rate. Is this what growth really is? I feel like I'm a freaking bomb about to go off at any time, woooo!"

Her destroyed shirt tore up and its remains ended either gathering at her feet or scattered onto her huge melons alongside her poorly discarded black bra. "S-so this is why they also call 'em a rack, hehehe... eeep!" Neptune giggled and moaned as her panties dug into her fattening ass, forcing the front of her undergarments to dig into her womanhood. But curves weren't all that Neptune was gaining. The excited girl grinned as her entire being shuddered and grew. Tightness gathered at her feet as her sneakers split down her ankles and came apart at the sides. Her so far unaffected parka was suddenly for the first time in Neptune's life tight all over. The usually comfy material clung to her increasingly bigger arms as her height increased. The hoodie stretched to the sides as her shoulders broadened; Neptune starting to become way too tall for her own clothes.

Sounds of bones popping and muscles creaking joined the loud noise of clothes ripping and tearing, orchestrating the otherworldly cacophony that was the music of enlargement. Neptune laughed as she felt the brisk night air caress her increasingly naked body as she gained size over seven feet tall and continued to rise.

She hit her head on one of the branches she had earlier used to climb the tree, but the pleasure was so much that it numbed her pain. Neptune didn't even realize that her vertical ascension was being impeded, but her body didn't seem to care either as her head simply crashed through the sturdy tree's branch, snapping it right off. The larger she grew, the heavier she became as well. With what little resistance the tree offered in the face of such overwhelming odds, Neptune's large feet had begun sinking against the grassy dirt. However, her hefty proportions were also weighing the tree back, making it groan against her weight as the trunk threatened to snap too. At over the height of ten feet tall, the poor plant broke and Neptune fell down with it with a loud, girlish scream of surprise.

"Oh, no. Nonononono! Ahh!" fully naked at this point, the giant Neptune rolled down the grassy hills. The expansion stopped, her concentration broken. Whereas at a different size she would have most likely been stopped by one of the several moss-covered boulders or other sturdier trees in the way, the curvaceous amazon seemed to either ramp off or bowl over trees like a particularly sexy snowball. The trip downwards wasn't as painful as it was dramatic, largely in part to Neptune's body having grown stronger even without developing muscles. "Okay, that hurt a little," she slowly sat up, her breasts jostling even with the most minimal of movements.

The amazon held a hand behind her head and looked up at the trail of destruction her big body had left behind, feeling more humiliated than hurt at this point. "Wish I'd been more careful with that old tree. It was sturdy before... I should've... Huh?" Neptune's train of thought dissipated as a soft glow enveloped her. Before she could question what had happened, her purple eyes widened to the scene before her. She was back at the top of the hill, her enormous body pressed against the creaking tree behind her, which was about to snap again. "Ah, move!" she sprang forwards just as the tree began to collapse, avoiding the fall this time. The huge Neptune caught her breath and turned around to see the tree sliding down the hill. "Déjà vu?" she blinked in confusion, leaning down to examine the broken off stump, her wobbling breasts noisily smacking into one another. "If that's the case, shoot, that was like getting a retry at a stupid QTE! Hmm... I wonder..."

In the next moment, Neptune's body glowed again and suddenly her face smacked onto a tree trunk. "Owwie!" she whined, falling down onto her enormous ass. While rubbing her face to stifle the pain, Neptune noticed that the empty space where the tree had snapped off had been refilled with the tree trunk again, and in perfect condition before she had broken it. "Holy emulation exploits! I just went back in time, twice. This is so cool!" the lilac haired girl laughed to herself. The trail of broken trees downhill was completely gone, and the tree was perfectly fine too. "Croire wasn't kidding. This thing is really powerful if it can keep save-states like that! Just... how far can I take this?" she began to grin with ideas bubbling up in her mind like the cauldron of a witch looking into future visions.

Looking down over herself and her new body, Neptune ran a hand over her curves and gave her ass a swift swat, watching it jiggle and shake. "I could really go for some more of this, but..." she covered her mouth with a hand and chuckled, "If things get out of hand, it'd be really bad, even with save-states." She snapped her fingers as a realization manifested in her mind, "Of course! I know who the best guinea pig next to me is. Me! Well, another me that is. And I'm still conveniently in this alternate dimension, sooo...!"

Neptune snickered to herself as she looked out into the sky and focused on Croire's skill. "Time to pay Planeptune a visit!" she said out loud and instantly teleported.

Planeptune was one of the most technologically advanced nations in the entirety of Gamindustri. One could not take a trip to the futuristic country without being exposed to atmosphere of a big bustling city. Its buildings were amongst the tallest in the world, with skyscrapers stretching thousands of feet upwards. Urban charm practically oozed out of streamlined white and blue edifications, yet as industrialized as the cities were, patches of healthy trees constituted an impressive number of public parks.

One such park, to the east of the central district of Planeptune's main city, was a particularly popular spot for dates. A lake spanning over a hundred yards was encroached into a circle by the lush greenery. Even with so many buildings surrounding the park from several different blocks, moonlight managed to reflect off the lake's clear waters, thus creating exquisitely romantic ambience. Two very good friends had picked their hangout spot to bicker in that very park.

"...and I'm telling you, pudding flavored pudding can't be a thing! That's like asking for pie flavored pie!" a black haired girl in long pigtails had long lost her patience with her conversation partner.

"Pie flavored pie? That's like some seriously uninspired joke, Noire!" a short lilac haired girl playfully argued back, "C'mon. My idea at least has the preservation of a classic flavor in mind! Think of all the custardy goodness!"

"That's not what I'm arguing, pudding-for-brains. Look, forget it." Noire wasn't a very patient girl. As the ruling CPU for the country of Lastation, she was usually buried in her own work and hardly made any time to deepen her understanding of others. She considered the girl sitting next to her on one of the numerous park benches the closest she had for a best friend, but the immaturity on her confidant's personality was sometimes very hard to ignore. "I thought we'd come here for a walk. You've been stuffing your face since we got here thirty minutes ago, Neptune."

"Hey, that's not fair! I need a snack before walks. That's just common sense, Noire." There were hardly many Planeptune citizens who would've recognized their ruler. Wearing a cute white and purple parka hoodie and long striped socks and sneakers, Planeptune's aptly named CPU Neptune could've passed for just about any teenager girl with an incorrigibly sweet tooth. "Want some?"

Noire chose to remain silent. It was very simple for Neptune to get a rise out of the black dressed girl, and Noire wasn't a fan of letting her have the pleasure of seeing her all flustered. "Fine," she finally said after giving Neptune a side glance with her arms folded under her modestly sized bust. "I guess I'll let you share one with me."

"Yay!" cheered a satisfied Neptune, who fished a sealed plastic cup with pudding in it from a bag. Noire turned her head and shivered at the sheer quantities of plastic cups that remained within the supermarket bag and honestly questioned whether her friend was planning on eating it all in one sitting. "Here you go, Noire! It's really good, you'll see!"

"Thanks," Noire softly murmured, accepting the treat as well as a plastic spoon. "That's simply a lot of pudding in there, Neptune. Aren't you worried you'll eat yourself sick at this rate?"

"Nonsense!" Neptune responded with a mouthful, "Gods have Ambrosia, fat cats have lasagna, and I have pudding! That's just the natural order of things."

Noire frowned at the predictably childish response, "Humph. Well, don't you blame me if you start getting pudgier in the long run!" Noire brushed one of her pig tails behind her shoulders before she removed the lid her cup. She carefully scooped a bit of the jiggly treat out of its container and heaped the pudding inside her mouth. Noire's cheeks instantly began to tickle as her tongue tasted the creamy custard. It was still cool and fresh, and the fluffy yet slightly gooey texture seemed to melt in her mouth. The treat was extremely sweet, with only the right amount of sourness provided by burnt caramel. It was enough to make Noire's taste buds sing, but other than a little amount of red color on her cheeks, the girl maintained a serious composure. "It's good."

"Good? This is the best thing ever!" Neptune laughed, reaching over to prod Noire on her cheek, "You're doing the Noire thing again, you silly-billy. Why don't you just admit it's so sweet and touch your cheek like an adorable tsundere?"

"Q-quit calling me that!" Noire blushed harder, almost biting the plastic spoon in her mouth as she slapped Neptune's hand away. "I can enjoy a snack however I want, and certainly don't need you of all people telling me how to eat pudding!"

"Aww, really?" Neptune appeared disappointed, "But I think it'd be so cute. Like the melting of a glacier, or the smoothening of a hard rock, or..." With every mindlessly spouted analogy, Noire's frustration grew to a boiling point.

"I get it already!" Noire finally snapped at seventh comparison, when Neptune compared her to a killer robot finding its humanity after tasting pudding. "Now will you quit your teasing?" Noire sighed in defeat, "It's not like I said it was bad!"

"Hehe." Neptune giggled, and brought her hands up in defense when Noire began staring daggers at her again, "It's just that I think you're really cute when you're eating pudding with me, Noire. Plus, you did call me pudgy. I couldn't let that one go!"

Softening her glare, Noire sighed again and rolled her eyes to the side, resting her hands cheek on her hands. "You seriously need to find a way to measure your punishments, Neptune. But the truth is I wonder how you can eat this much without getting sick or... well, fat. Where does all the food you shovel in go, anyway?"

Neptune had a plastic spoon in her mouth again, so she shrugged instead of responding. Planeptune's CPU wasn't exactly tall or curvy like Leanbox's Vert was. Neptune had a lithe and almost dollish figure, so she didn't stand out, but she did look a little plump, which her parka hoodie did a good job of minimizing.

Noire folded her arms and crossed her legs, sighing again and closing her red eyes. "Well I'm jealous."

After swallowing more pudding, Neptune decided to add to the conversation, "If you want to talk about getting fat, maybe you should have a talk with Vert's chest!"

"That's very crass, even for you, Neptune," Noire responded, but on further consideration began to chuckle. "Though I can't say you're wrong. I wonder how she does it, too. I mean, it's true she's one the oldest, so it stands to reason she'll be, ahem... more endowed. But to walk around with those heavy things attached to her chest must be hell on her back!"

"See Noire, there's a way to ruin all good things! Except for custards. Yummy!."

"That's not what I meant!" Noire talked back, "I mean, haven't you ever imagined what it'd be like to be as, um... buxom as she is?"

"Oooh, the fan artists would have a field day with that one," Neptune was quick to respond, rolling her eyes up in deep thought. "Now that you mention it though, yeah. Even when we morph into our CPU forms, we don't get that much of an upgrade up here!" she grabbed her small breasts and pulled them up and down, "And Vert gets even huger, sheesh!"

Noire sat up straighter than usual as she saw Neptune openly grabbing her breasts, gulping a little. "Hey, cut it out, Neptune. We're in public, don't grope yourself like that!"

"Oh. Huh? Haven't you learned anything by now, Noire? NPCs don't care about what's going on around them unless there's something big going on," Neptune laughed, "I'd have to be the poster girl for Attack of the 50ft. tall woman for these guys to pay any attention."

"That's a really condescending way to talk about your people, but I guess it's uhm... accurate?" Noire reluctantly agreed, only because a different thought stuck at the forefront of her mind. "Erm... 50ft. tall you say?"

"Yep! Like, really really big! Wonder how many HPs I'd have if I was ten times bigger. Think I'd qualify as a super-boss?" Neptune giggled at the thought, but her excitement turned to wonder as she noticed Noire was behaving more fidgety than usual. "Oh, sorry. Did I say something especially silly in the last thirty-five or so sentences?"

Noire averted her gaze from Neptune, not wanting to show her face to her friend. The Lastation CPU hadn't told anybody, not even her closest friend, but she had a thing for extremely big people. For some reason, until the last few moments it had never occurred to Noire to think about mixing her kink up with people she knew. Thinking about a 50ft. tall Neptune had made her tremble, and she could feel her throat becoming dry as her warmth enveloped her nether regions.

Even with her multitude of personality quirks, Neptune wasn't a mind reader, but even she could tell when something upset Noire. She loved teasing her, but this time something was off the mark for sure. "Hey, if it's about all the stupid tsundere analogues, I'm sorry. I didn't mean to make you mad. Well, not this mad!"

"N-no, it's not about that! Ah, this is so embarrassing that if I keep holding it I'll just make it worse..." Noire murmured, deciding that being transparent was the best course of action. She knew Neptune, and she knew that the lilac-haired girl wouldn't give up on this now that she had seen her so lost in thought. "Erm, it was hot," Noire weakly phrased, clearing her throat before uttering a tad louder: "The thing you said about gigantic. It was hot."

"Oh!" Neptune pouted a little. She was actually unsure of how to respond. "Well... what would you do if I was that gigantic, Noire?"

"H-huh? Where'd that come from?!" Noire was so shocked at the question that she slid back on the bench away from Neptune.

"I don't know, I'm just trying to play along. To be honest, I think it's sexy to imagine you bigger too, Noire! I'd climb all over you like a squirrel if you were a giant!" Neptune beamed. Noire blinked in surprise, having imagined this going a number of ways, but such readily available acceptance hadn't been one of them.

"W-well, just being a bit taller would be okay with me. Sometimes it's hard to get people to respect you when you're so short, you know!" Noire explained, scooting back closer to Neptune, who seemed to be eagerly nodding at her friend.

"I know! Heck, can you imagine how surprised Vert would be if we suddenly showed up way taller than her? She'd like, lose her big sister podium and everything! Maybe that'd calm her down about abducting my little sis and turning her to the boob-side!" Neptune flailed her arms angrily, to which Noire couldn't react in any other way other than amusement.

The two friends couldn't have known that there was a particular somebody very interested in their heated conversation. The dimension-hopping Neptune had been hiding from sight in the thick shrubbery. The Amazonian bug hunter had chosen the location with the tallest and greatest amount of trees to be able to spy on her two targets without drawing unnecessary attention to her lascivious new body. "Oh, this is too precious. Almost excessively contrived; but I won't complain! Let's give these conveniently macrophile cuties a bit of the Zero Dimension treatment!"

With the power-supplying Nep-note stacked away in her deep cleavage, Zero-Neptune didn't even need to tap it to bring forth its most recently acquired ability. As she overheard the girls eagerly discussing size-related fantasies, Zero-Neptune concentrated on bonding her ability to increase size to the intent behind the girls' words. "There's no reason I can't have fun while running this little experiment!" she thought to herself with a devilish smile.

"You're still pretty upset about that one time between them, huh?" Noire gave Neptune a soft smile. "Still, it must be nice to be so well-developed. It's hard not to feel overshadowed when we're out on the beach or poolside."

"Oooh," Neptune quickly forgot about her short-lived bitterness and perked up at Noire's occurrence. "What kind of swimsuit would you put on if you had bigger boobies, huh?"

"H-huh? That was sudden!" Noire had been gently patting Neptune on the head, feeling at peace with the fact she had been able to share something so personal with her friend, but the invasive question. "Although I suppose I'd have to find a bigger bikini top, for starters," Noire snickered as she imagined herself posing like a top-heavy swimwear model, "I've had the same swimsuit for the last three years. Just an inch of extra bust would make it feel so tight for sure."

Neptune smiled and was about to tease Noire about the time her friend had put her bikini on backwards, but something else caught her attention. Two things in fact, since with her head nestled against Noire's chest, Neptune certainly couldn't ignore an unfamiliar amount of extra padding that didn't use to be there. Like a curious puppy sniffing clues out, Neptune pulled back and shoved her hands against Noire's chest.

"Ah! N-Neptune, what the hell?!" Noire gasped and moaned out when Neptune suddenly started groping her out of nowhere.

"Heyyyy," Neptune started frowning as she freely manipulated Noire's breasts through her dress' top, "Have you been holding out on me, Noire? These are bigger than I remember!"

"Wh-what a thing to say!" Noire was scandalized, glaring down at Neptune. Noire was no stranger to Neptune's perverted outbursts, but she had never been so intent on it. "What's this about you remembering? Don't you think the owner of her own breasts would know it better if she... Huh?" Noire's crimson eyes blinked in surprise as she felt Neptune's fingers meeting with so much more resistance than her modest-sized bust should have been providing. "N-now that you mention it, I do feel a bit um... fuller."

"Paddings?" Neptune perked up, immediately getting bonked on the head by an angry Noire. "Owie!"

"Don't you even suggest that, stupid!" Noire shook a closed fist angrily, "Aren't you listening? I can feel it. It's part of me. Have I even ever worn stuffed bras before?!"

"Ah, s-sorry, Noire! You're so scary when you get mad." Neptune reached up to rub her head, flinching a little at the pain. "But that's weird. Just look at your chest, it looks so tightly packed all of a sudden!"

Noire tried to calm down, but the attention her bust was receiving from Neptune was making her lose her composure. She decided to deflect her insecurity with a boast. "W-well, I bet it's just my awesome body that decided I deserve an upgrade! It's been long since coming, don't you agree?" Attempting to look confident, Noire threw an arm behind her head and stuck her chest out to make it look even bigger. "Don't worry, Neptune. I bet you'll start blooming soon too. After all, it's not like you're that much younger. Haha!"

To Neptune who had hands-on experience with Noire's enhanced bust things looked suspicious. It wasn't merely the feeling during that brief fondling. Neptune was sure Noire wasn't as busty seconds ago. It hadn't been a significant boost, but the top of Noire's dress did look noticeably tighter now. Pouting, Neptune was about to voice her concern just as Noire reached the blooming part. All of a sudden, Neptune felt all of her body lock up as a sensation of rising heat washed over her being. Her pupils shrank and she hung her head as the feeling intensified at her mid-section.

"Haha... ha. Ahem," Noire cleared her throat in an attempt to subtly end her boast. Something was off with Neptune, however; she wasn't counter-arguing or making fun out of her as usual. "Neptune? Are you okay? Oh dear, did you really eat yourself sick?!"

"Ahh..." Neptune panted, unable to zero-in on whatever was causing the tingling sensation rocking her senses. All she could do was breathe as her heart-raced. With every pulse, she felt her body shudder as her clothes tightened around her body. "It's not my stomach..." Neptune gasped as she spoke. She shivered all over as the sleeves of her parka clung to her arms and her socks began to tear down the middle. "It's all of me!"

"What do you mean all of you?" Noire stood up with a worried frown. She approached Neptune but stopped briefly as she felt an actual tightness on her chest. "It's true, they are bigger..." she thought, looking down at her chest which she had never felt be tight on any kind of clothes before. Noire's attention was wrested from her own body however when she heard the loud sound of Neptune's clothes beginning to rip. "You've got to be kidding...!"

Neptune's clothes looked like they were shrinking on her. The parka's zipper got stuck halfway down only to snap as, just as Neptune had claimed, all of her body was starting to grow bigger. The short lilac-haired CPU was swelling all over, inching upwards to the point she was at face-level with Noire even when Neptune was still sitting down.

"E-everything's... getting bigger...!" Neptune announced as she felt her undergarments digging into her expanding flesh. "My breasts too!" she moaned as she brought a hand up to grab and feel the changes for herself. The cute undershirt Neptune usually wore was gradually coming apart with every additional inch her height compiled, but the process seemed focused on disproportional growth. She was growing taller, but her curves were gaining more definition faster than her body managed to maintain her once petite figure. While her tits ballooned out so fast that her nipples created tents through the fabric of her bra and undershirt, her hips flared out with newfound girth and snapped the elastic bands of her shorts and panties. "And my butt, too! Noire, what's going on?!"

"I-I don't know!" Noire could only helplessly watch as her friend grew larger on the park bench. Every logical thought in her brain was trying to tell her to analyze, intercept and contain the strange phenomenon, but Lastation's CPU couldn't bring herself to act. "You're getting so huge and curvy!" she instead whimpered, brushing her legs together anxiously.

"Th-thanks Noire, I wasn't aware of that y-yet!" Neptune sarcastically responded before letting out another moan of pleasure as her clothes continued in their ultimately futile efforts to contain her expanding form. Fabric creaked and began to loudly tear apart, her sneakers practically exploding around her enlarging feet. The colorful outfit hadn't been designed for a huge young woman with widening proportions so it was very quickly being shredded. The feeling was so powerful that all Neptune could muster was to press her feet down and force herself to stand up. Her ass cheeks billowed out like a pair of water balloons being pumped full of water. Just like with rubber, her gluts were soon taking on a firm and springy consistency. It was impossible to look at Neptune's back without noticing how her fattening backside was practically tearing her lower body clothes apart on its own.

Noire was absolutely flabbergasted once Neptune managed to stand off the park bench. Since she had always been taller than Neptune, witnessing this process before her very eyes was an incredible shock. With Neptune towering over her at over seven feet tall, Noire was so intimidated and at the same time visibly turned on.

"Mmm. Now that's way more than just blooming!" Zero-Neptune observed from her hiding spot. The sight was a strange combination between adorable and sensual. "Little me is so big now! I suppose this is when I should tearfully say they grow up so fast!" the amazon chuckled, very satisfied with the influence of her newfound powers. "So. Growth, save-states, what else can you do, power scroll?" the long-haired beauty smiled while playfully smacking her breasts, watching them roll into one another and jiggle. "C'mon, Nep-note!" she grinned, returning her attention to the unfolding scene.

"Ahhh, nnaaahh..." panted an overwhelmed Neptune. Her body's expansion seemed to have slowed to a halt, leaving her significantly taller than her friend. Neptune's white parka hoodie had split at each side of her shoulders, leaving her with skin-tight tattered sleeves over her arms; the rest had split down the middle around her back and fallen off in pieces. Her undershirt was an overly stretched mess of white fabric with piles of breast flesh spilling out from holes in an attempt to break loose. Her mammaries, now each closer to the size soccer balls, each had a half of her split bra barely functioning as nipple pasties at this point. Her shorts had been damaged beyond repair by her bountiful rear, which had grown so large in tandem with her widening hips and fattening thighs that both the ripped cloth and her cotton panties had been pulled back and in-between her buttocks. With Neptune standing so massive atop her flattened footwear, she looked like she had caught her clothes on every thorny branch of a brambly forest. "That was crazy! Is this what that the plumber guy with the mushrooms goes through each time? And we are the ones rated for teens?!"

"Neptune!" cried a worried Noire, who finally summoned enough self-restraint to approach her. "Are you okay now?"

"Huh. Yeah, why ask?" Neptune casually rested her hands on her wide hips, looking down at Noire as if she had just asked a silly question. The fact Neptune's waist had remained at its default measurement had endowed the towering CPU with a flawless hourglass-shape.

"Why ask?!" Noire yelled back at the bigger woman, feeling slighted. "Humph! S-so maybe I was a little worried about you. That _was_some sudden transformation. I thought it would lead to something bad, y-you know. Never mind! See if I get concerned over your dumb fat butt again." The black-haired girl turned around, folding her arms under her prodigious new bust.

"Now, now," Neptune defensively waved her hands down at Noire with a nervous smile, "I'm happy you were worried about me Noire, but I really am fine. That was some really hormone-shaking experience, but I'm fine..." she interrupted herself with a gasp as a very sudden jolt of electricity ran through her and made her look back to see her rump getting even huger, taking on an extremely plush heart-shape. "I-I guess I wasn't really done...?" she laughed a little, shaking her hips in a playful yet awkward manner. She coughed to clear her throat and turned to face Noire again, "I'm fine, really. Inflatable caboose included. What about you?"

"Me?" Noire had begun to soften as Neptune's apologetic tone won her over as usual, but the question at the end caught her off guard. "I'm not the one who shot up two feet taller and shredded her clothes a pair two massive tits! And... sheesh, no more miniskirts for you!" she remarked, trying not to stare at the incredibly voluptuous Amazonian woman, "...but I'm fine, thank you."

"Hehe." Neptune softly giggled down at Noire, "It's just, well, you looked like an entranced cat staring at me while I got bigger! Gosh, you really must like big people, huh?"

Noire was about to argue back, but a sharp pounding in her head stopped her from talking. "Anngh!" she yelped, pressing her hands to the sides of her head. "H-head hurts..."

"Huh? Did you hit it earlier today?" Neptune asked out of concern, crouching to be able to get a better view of her friend. With every little motion, more tattered cloth slid down over Neptune's sexy body, gathering at the ground in a pile. She didn't seem to mind her nudity all things considered. Suddenly, Neptune's eyes widened as she caught sight of something strange. As Noire continued to groan and grab her head, Neptune saw short strands of hair pop out between her friend's fingers. By focusing her vision, Neptune quickly became aware that it wasn't oddly behaving hair at all. "Um, Noire. You got fur sticking out of your head...?"

"Fur...? Whu-what?!" Noire gasped, her palms sinking against the sides of her skull. She was horrified when she realized she had just squeezed her ears flat. "Ahh! What's going on with me?!" The frustrated black dressed CPU turned around and decided to confirm it by herself, running to the edge of the lake to look at her reflection. "EEEEK!" she screamed in a panic at what she saw once she released her head.

Noire's ears were gone. They hadn't fallen off, melted, or flattened. There were no ear canals on the sides of her head; it was as if she had never had ears at all. However, at the crown of her head and in the shape of triangles, two soft and fluffy black cat ears had replaced her missing human ones. "Oh my god what are these?!" she yelled out, pulling at her ears in disbelief until the pain made her stop. "Ahhh! This isn't an optical illusion either! Nngh!" she grunted, suddenly falling to her knees as she felt pressure above her rump. "Oh no, no! No no no!" Noire begged, but a loud rip confirmed her fears when all of a sudden a long black tail pushed out through her panties and lifted her dress up for Neptune behind her to see. "Nyaaaaaaaah!" she cried out in embarrassment, tugging her skirt down out of desperation even though her long tail swished to the side ceaselessly.

Neptune, who had witnessed the bizarre change on her friend, could only bring a finger up to her lips while musing in deep thought. She frowned a little, "Oh, right. We're in that kind of story. But still..." She stood up, took a deep breath, and let out such a loud girlish squeal that the birds from nearby trees flew away. "Eeeeeeeeeeeeeee! You look so cute, Noire!"

"C-cute?! I'm part-cat nyahmmph!" Noire brought her hands up to cover her mouth at the involuntary mewl that accompanied her words. Her eyes bulged as she saw Neptune dashing in her direction rather excitedly. So excited in fact that the big girl didn't seem to notice how her incredible curves were wobbling everywhere with each stride.

"You're mine, Black Cat!" the overjoyed Neptune yelled as she practically glomped the catgirl. At her speed, both girls ended splashing into the lake. "Oh whoops! Didn't measure my own strength, haha!" The towering Neptune laughed as she unwittingly ended engaging in skinny-dipping now that what remained of her outfit had washed away.

Noire emitted a loud hiss and quickly climbed up on her taller friend, clinging to her shoulders and pushing herself against Neptune's enormous chest. "Y-you crazy girl! What were you thinking pushing us into the water like that?!"

"Oh right, kitties don't like baths, do they?" Neptune playfully stuck her tongue out before she got conked over the head by an angry Noire again. "Owie."

"You should_not_ push people into a lake at night period! Being part cat has nothing to do with it, nyah!" Noire hissed, shaking her head to get the water out of her long black pigtails. "What's up with this silly meow anyway?! I-I can't help it!"

"Oh, Noire. I thought you'd been to the internet already," Neptune rested her knuckles on her waist with a frown.

Noire growled at the smartass, "Sh-shut up and get us out of this lake, you enormous brute! I'm sopping wet, nyah!"

"Ooh, too easy." Neptune murmured, but decided not to upset her friend any further. She gently scooped Noire in her arms and turned around to deposit the black haired catgirl at the edge of the park lake. Before Neptune herself could climb out however, an all-too familiar tingle began to crawl along her skin. "Whu-what? Again?!" she gasped, feeling her pulse accelerate as the water around her waist rippled.

Noire was relieved to be out of the water. She fortunately hadn't gained any sort of hydrophobia to go with her unexplained new cat features, but that didn't mean she enjoyed to be drenched with her clothes on. "Again?" she repeated as she turned around, becoming startled once she saw Neptune's park-lit shadow extending over her own. The catgirl looked up only to find Neptune shivering as she started growing larger again. With every breath Neptune drew she seemed to pulse bigger and bigger, easily passing 10ft. tall in the short span of time it took Noire to realize what was going on. "Seriously?! What the hell is going on, nyah? Why are you getting even more...?" she paused. "Enormous...!" Noire exclaimed in realization.

"Waaahhhh!" Neptune whined as every last fiber of her being energized beyond its limit, granting her so much power that her body had no other way to contain it but grow more and more. All Neptune could do to avoid succumbing to the pleasure and slipping into the water was to slide forwards and throw her hands down against the edge of the lake. Her enormous melons squished down against the moist grass at the rim as Neptune did her best to anchor herself, since she couldn't climb out in her current state.

"Neptune!" Noire cried out at her growing friend, dashing in front of the increasingly bigger woman. "Listen, nyah, I think I know what's going on! I can't explain it, but I think it's in what we're saying! I talked about getting a little bustier and that's what happened, then you "bloomed" into a super developed hottie, and then when you called me a cat, nyah...! Nngh! I can't help that ridiculous quirk!" she stomped the ground furiously; "We have to be careful about what we say!"

"L-Like how you called me enormous just now? Ahhh!" Neptune groaned out in pleasure as her entire body stretched larger still, her fingers digging into the dirt as her toes curled in anticipation. Even with the lake being six feet deep at the shallows, Neptune's enormous ass was already resurfacing, poking out of the water like a pair of spherical islands tightly squeezed against each other. She was growing even faster.

"S-stop calling yourself enormous, nyahmmph!" Noire desperately brought her hands up to cover her mouth again, although this time it was to stop herself from using sensitive words and not to block her meowing. Just as Noire feared however, the simple utterance only made Neptune grow bigger and bigger still, causing her friend to exceed 20ft. tall and simply continue to expand.

Zero-Neptune couldn't stop chuckling to herself. "Seriously, who needs to be evil and junk when things flow so well on their own?" the bug hunter was fixated on the alternate version of herself. "Mmmm, that's so sexy. I had no idea I'd make such a cute giantess! Wonder how far you two are gonna take this?" she cooed out silently, shivering in anticipation. Zero-Neptune brought a pair of fingers down to her womanhood, which was visibly aroused from watching Neptune grow so curvy and large just as her little sister and new lover had. "Since you're so keen on being boring though, kitty Noire, let's kick this up a notch or two!" Zero-Neptune moaned as she fingered herself to the spectacle but managed to focus enough to guide the mystical energies into the shape of her desires.

Neptune was on the verge of an orgasm. Until this moment she had managed to mostly stay in control of her mind, but the rush of growth had compounded a total of three times, multiplying stimulus beyond what her brain could process. For the next three explosive bursts of growth, her mouth hung open and her entranced eyes rolled up in some sort of all-consuming bliss. She panted like an animal in heat, drooling over her gigantic breasts as she swelled larger and larger still. Neptune's chest and arms slid over the grass as they took over more space. Her genitals were soon fully exposed as her lower body emerged, being pushed up by her elongating lower extremities.

"She looks so at peace with herself..." Noire thought while biting her lips. The cat girl's entire body was shivering. She wasn't a fan of being uninformed and having no control over any potentially dangerous situation. At the same time, Noire's desires were conflicting with her serious and structured persona. Simply watching Neptune swell and grow, reveling in the joy of her transformation was driving Noire's hormones wild. Noire wanted to call out to the overwhelmed giantess, but was afraid any loosely placed word might make matters worse.

"N-Noire. This feels so good!" Neptune moaned out, saliva trickling down the side of her young lips. "I can't stop it, yet I like it so much!" she explained as she grew bigger still, very fast approaching the 30ft. tall mark. With her bent over at the waist, it didn't take long for Neptune's upper body to reach Noire, who was still standing there, paralyzed. To avoid steamrolling her friend under her massive chest, Neptune decided to instead throw her relatively long arms around the catgirl and pull her into her cleavage. "And you look so cute like this! You're like a super duper cute doll!" she happily giggled.

"It's like she's drunk on the sensation. Does growing like that feel that good?" Noire mused, surprisingly at peace with her capture. She was painfully aware that her legs weren't responding thanks to how all of her being was absolutely taken in by Neptune's incomparably curvy and enormous body. So she was thankful Neptune was in control when it counted; Noire didn't relish the idea of becoming a CPU pancake. "And she's so big..." she paused, looking down at her hands gripping a vast expanse of flesh that were Neptune's gigantic knockers. Noire blushed. "...and so stacked! Was it really all because of that little comment?"

"Hey, Noiiiiiire!" Neptune pouted as she looked down at Noire, looking like a gigantic child instead of the extremely developed woman she had morphed into. "I can feel it stopping. This is worse than a cliffhanger! I want to get even bigger!" the horny Neptune whimpered, then moaned as her entire body shuddered and shot up another 5ft. taller. "And bigger!" the lilac-haired girl repeated, growing another 5ft. taller. Every time she mentioned it, she moaned louder as pleasure wreaked havoc with her senses, and expanded even more. "Oh yes, bigger!" she chanted, screaming out loud as the idea of pushing her body's limits and relishing size increments became a singular concept driving her mind. Neptune nearly shrieked as the repetitive commands once again dog-piled to bring her over the edge. The absolutely monolithic woman jerked up and screamed as she hit such a powerful orgasm it made her stand upright as she squirted juice down into the lake. "Nnaaaaaaahh!"

Noire's eyes widened as she felt Neptune's body shudder and expand. "N-no, don't say it so many times! Neptune are you even thinking?!" the worried Noire was so desperate that she was attempting telepathy while knowing she simply wasn't capable of it. The feline's ears could hear Neptune's skin creak as it stretched alongside the rest of her body. When the position shifted and Noire could suddenly look at the crown of many of the tallest trees in the park, the catgirl could only wiggle in the squishy prison surrounding her. "Oh God, she's so big. She's so big she towers over the trees!" Noire's face was turning red. Her body was heating up, she was already sweating. Her thighs rubbed together as she gripped Neptune's tit flesh out of how absolutely flustered she was. When she heard Neptune's orgasmic scream, Noire couldn't hold it in any longer. "Nyaaaaaah!" she meowed out loud as she released. She could sense her own juices running out and soaking her already moist panties, making her feel even worse.

However, while the embarrassedly horny Noire thought she could ride out her afterglow in peace, she was dead wrong. Just as she was nestling back against Neptune's titanic rack, the panting feline felt an increased amount of tightness at her dress' top. Up until this instant, Noire had forgotten her comparatively minuscule bust upgrade, which had barely managed to push her chest out into prominence. As the catgirl looked down, she noticed her breasts were bulging against the top and threatening to rip through. "M-me too?! But why?" Noire questioned in her mind as she brought her hands to her breasts. She moaned at the increased sensitivity in spite of them being still covered in her clothes.

The catgirl's breasts were swelling incredibly fast this time. They doubled size mere seconds after she noticed them. "They're getting... so huge! I can't... ahhh...!" She clenched her teeth down, trying to stifle more embarrassing moans now that Neptune's had calmed down. Inevitably, the fabric of her dress was stretched over its limit, and Noire's unstrapped bra and enormous breasts bounced out to freedom.

Neptune, whose mindless expansion had culminated with her at a staggering 70ft. plus tall, could barely find enough strength to stand upright. As she shuffled in her spot and wobbled, her feet splashed water all over around the lake. In a moment of lucidity she managed to step out of the lake, fearing she might slip and hurt herself. After a few steps, the passenger between her monumental breasts caught her attention again. "N-Noire!" Out of her pleasure induced trance, Neptune quickly brought up the back of her forearm to nestled her titanic jugs over, ensuring there would be zero chance of her friend being dropped. "Ahhh, I really lost control over there. That was some serious panic button business! Are you okay?!"

Noire couldn't respond. Not because she was holding herself back this time, but due her senses being overloaded by the sensorial satisfaction of her fingers sinking against her bare flesh. The catgirl was whimpering, completely absorbed in playing with her huge new boobs while being trapped between Neptune's.

"Holy boobception. How... when did you get top heavier?!" Neptune's eyes trembled, but instead of freaking out she smiled wider than ever. "Those look so adorable on you! Aww, they look even huger on your body!" the endeared giantess fawned, reaching down with her index finger to prod Noire on the head. "Here kitty kitty kitty!"

The catgirl wasn't all there thanks to the immense pair of jugs she was now the relatively proud owner of. Her breasts had grown so large that they were at least twice the size of her own head each. Her nipples had grown in proportion as well and they were no smaller than her prior bust size at this point. At her regular height, Noire was even more stacked than Neptune. Despite being so sexually turned on, Noire couldn't let the pet treatment go lightly. "Quit that!" she screamed, trying in vain to cover her breasts; only managing to cover her nipples with her hands, "I'm not a kitty! This is weird and, and I'm not liking it! Not one bit, nyah!" Noire blushed, but half-panting her words was making her sound largely unconvincing.

Neptune giggled even more at the tantrum and gently prodded her friend at the nape of her neck. "But you look soooo cute! I'd totally keep you and... wow!"

"Ahhh!" Noire jerked again as her breasts billowed out even huger, making it hard to reach around, "Th-this is so humiliating! I know I wanted a change, but I didn't expect to get so freaking gigantic! ...ah!"

"Oh, totally did not see that one coming," Neptune quietly snickered as she patiently observed the ensuing changes. The prior enlargements had come at a regular pace, but with Noire's yelping voice calling out to grow, the catgirl became the sole receptor for a vast amount of energy. Neptune giddily sat her enormous ass down at the park and intently fixed her gaze upon her growing friend.

Noire did not utter a single word, her mind focused on resisting the assault on her senses. Her body swelled against her damaged dress, further ripping it to pieces alongside with her foot wear and accessories; the expansion was so fast that instead of letting her clothes slowly rip and break over time, they exploded around her rapidly expanding form.

To Noire, the experience was akin to being in a spa being prickled with invisible needles that individually brought out satisfaction and sexual gratification in immeasurable quantities. With her watermelon-sized breasts heaving against her shaking arms, all she could do was squirm and stifle moans, being overtaken by the sensation of growth. In just a moment, her body had swollen large enough to fill the almost invisible gap between Neptune's breasts. In the next, she was as big as Neptune's torso.

In order to keep Noire's increasingly larger body from slipping off or sliding down, Neptune made sure to keep her hands on her friend at all times, keeping a firm grip on her butt and back. "Geeze, keeping you is starting to look very unlikely at this rate, kitty Noire!" she stopped and while grinning gave her growing friend a big snuggle, "That's better then! The bigger you get, the more of you there's to cuddle!"

"Neptune...!" Noire groaned out in frustration, but it was undeniable that Neptune's affections were starting to reach out to her. It wasn't that Noire didn't want to enjoy what was clearly sending her into her second sexual climax, but showing such raw emotion in front of others wasn't her style. "However," she debated in her mind as her friend's smiling face came closer and closer with every extra foot of size she added, "This is Neptune I'm talking about here! She makes me so happy, so this shouldn't be any different. And she accepted my fetish like it was nothing, and she's so into it too! And... and..." she trembled, almost about to burst into tears before she turned the accumulated self-loathing she felt for doubting her best friend into one loud shout: "Screw being tinyah! I want to be huge with you...! ...Neptune?"

Noire had been so caught up in her inner dialogue and fighting her repressed emotions that her rampant growth had taken even Neptune by surprise. The catgirl's enormous bosom had become even more than proportionately bigger with her body's expansion. The rapid burst growth was so powerful that Noire had overtaken even Neptune's size, shooting as far as 100ft. tall and knocking her over with her prodigious chest.

"Mmmphh!" Neptune grunted from under the gigantic cat's mammaries. All she could do was lie down and struggle to breathe under so much weight. Noire had simply toppled her over with her impressive swelling.

Zero-Neptune burst out laughing amid lewd moans that she could hardly keep inside. The sight was as beautiful as it was amusing. The two naked ladies definitely supplied the sexy part, but watching the excessively top-heavy kitty Noire topping the now outsized but still gigantic Neptune was simply hilarious to the voyeur. "Oh damn, that went better than I even expected! And the other me's soooo right! Just look at that black tail swish around and the fluffy ears splayed against her head. Cat girls are so adorable!" the masturbating bug-hunter had already fingered out several orgasms, but now she was gushing simply out of how amazing that scene looked. Zero-Neptune only thanked that she had picked a remotely situated area of the park so that she wouldn't be caught. "Oooh, but she really can't help that cute meowing. I better tone down on that boob upgrade thing now that she's not being so tsundere about getting big... just a bit!"

To say that Noire was awestruck with her situation would have been an understatement. It was more accurate to say she was mind-blown. Just a few moments ago she was fitting in Neptune's grand canyon of tit, and now she was visibly smothering her friend under her own colossal mammaries. "Nyah that's right!" Noire felt a tingle at her chest, but she ignored it in favor of grabbing and pulling herself up and to the side, finally allowing Neptune breathing room. "Neptune! Neptune, respond!"

"Guhhh..." Neptune's eyes were disoriented, almost spinning in circles. There was a big, goofy grin on her face that set Noire's mind at ease though.

"S-stupid, nyah!" Noire said, her tail standing up straight in anger. "Making me worry about you like that!"

Neptune shook her head and produced a tiny laugh, "Hahaha..." she lied down like a defeated titan, yet with the sunniest of dispositions. "That was amazing! Your boobs are so soft and great!"

"O-Of course they are!" Noire closed her eyes and tried folding her arms to look imposing, but no matter if she tried to cross her limbs over or under her chest, the excessive amount of wobbling made her look ridiculous. "A-a-and now I'm the bustier one, and the bigger one! So no more putting me in-between your breasts!" the catgirl opened one eye to give Neptune a short glance, "Unless I give you permission. O-or else... I'll make your huge butt even fatter!"

"Wait, what?" Neptune watched Noire's smirk and gasped as she looked back to see her already impressive butt swelling outwards to even more awe-inspiring sizes. Her thighs filled out and her hips widened even more as a result; and her body would have ended with a pear shape had it not been for her huge breasts. "Aww sweet! Even more boo-tay!"

"Y-you're not supposed to like it!" Noire grumbled in defeat as she watched Neptune shake her hips and make her amazing ass wobble and jiggle like particularly sensual gelatin.

"Aww, stop being such a grump, Noire! You're such a good kitty," Neptune grinned, scooting closer and reaching up to put a hand on the catgirl's head. The taller Noire became the recipient of some light petting that followed into gentle ear scratching. At first, Noire could only furiously stare at her patronizing friend, but the strange kind of sensitivity behind her cat ears was soon making her purr and lean into the petting. "There, there, good kitties don't pout!"

"Nyaahhhh..." Noire gently meowed, pawing at the air with a curled hand before she violently smacked Neptune's arm away, "As if! You stop treating me like a pet right now!"

"You totally loved that!" Neptune grinned, sitting up straight to face the much larger catgirl, "Plus what happened to "screw being tinyah, I want to be huge with you!" huh?" she teased.

"Th-that is... ahh..." Noire flinched as she reworded the phrase in her mind and blushed at the emphasis Neptune had put in her mocking of the way Noire had said tiny. "Sh-shut up, nyah! I can't help it! Stupid Neptune! Stupid stupid stupid, nyah!" she lashed out.

"Oww! Haha, quit it!" Neptune playfully wrestled the larger girl back, but noticed herself starting to expand as well. "Oh dang, that's right! I said it too now! Whooopeeeee!" Noire flinched again as she saw Neptune expanding and outgrowing her by several dozen feet, leaving her the shorter one. Her moonlit shadow cast over the catgirl, who ended with both hands she had been using to play rough with on top of Neptune's breasts. "Oooh, right there!" Neptune moaned as Noire's hands grabbed her enormous breasts.

"A-ahhh, no fair, nyah! I want to be huge too!" Noire growled as she expanded even larger than Neptune this time. Her bust seemed to have been growing even larger still, giving the kitty's mammaries such an extremely round shape they looked like supersized basketballs attached to her chest.

"But I'll be bigger than you!" Neptune moaned, starting to feel the pleasure of unhindered expansion once more. Noire seemed to be very much into it as well. In fact, the back and forth between the two growth-addicted friends was getting so out of control that their bodies were starting to cover the whole park.

"Bigger!" one said, "Huger!" the other retorted. It was like a ping pong of words where the only vocal reprieve were the lewd moans leaving their mouths as they grew into each other and against the trees, lights and started moving into the pavement of the walkways surrounding the park. Their breasts mashed against each other, with Noire being the clear winner in sheer size, but Neptune didn't give up. As a result of the continuously escalating competition, the two giantesses were soon towering over some of the tallest buildings in the industrious city. Those details however escaped the two play wrestling friends, though.

"Humph, I don't know why you don't acknyowledge that I'm the bigger one, Neptune! Just look at my chest!" Noire confidently smothered Neptune's voluminous chest with her much larger one.

Gripping Noire's hands with her own, Neptune was beaming. "I don't care, 'cause I got the booty!" she playfully responded, shaking her tushie left and right, causing her enormous buttocks to wobble dangerously close to a kiosk behind her, "Extra thick!"

"Th-that's quite right, nyah..." Noire blushed as she looked over Neptune's shoulders and took note of that incredible well defined rump at the fellow giantess' ass. "And you're extra squishy too!" the catgirl announced before pulling a hand back and swiftly throwing it around Neptune's waist. There, Noire pushed her hand down and gave one of Neptune's buttocks a good squeeze.

"Ahhhhh!" Neptune squealed, "Th-that's gotta be illegal somewhere in the play wrestling rulebook!"

"Silly, there's no rulebook for this. And... there's certainly no rule for what I'm about to do either!" Noire smiled and took the opportunity Neptune was moaning to push their mouths together.

Neptune was surprised at the suddenness. Noire didn't even hold back and outright shoved her tongue inside Neptune's mouth in a kiss that she had never seen coming. Their oral muscles caressed together as the catgirl threw her free arm around Neptune's neck to get a better grip on her friend. For her part, Neptune recuperated rather quickly and didn't seem to be mad at all. In fact, the purple eyed beauty could only match Noire's passion with her own, returning affections by groping Noire's extremely oversized breasts.

Noire moaned into their French kiss, softly purring in response to the light but constant fondling her sensitive bust was receiving. The catgirl's tail was furiously wagging in erratic fashion, smacking into a nearby streetlight and knocking it over. The two girls had grown so titanic that their bodies had entirely filled the park.

To avoid being crushed by the fast advancing mountains of femininity going mouth-to-mouth like lust-crazed teenagers, Zero-Neptune had to warp herself away to a building on the opposite side of the park, but she quickly chose to relocate to another one farther away. "Those two are really going at it! And it's making me so horny..." the amazon groaned; she had a hand on one of her huge breasts and the other was still gliding fingers over her wet cooch. "Mmm, but they aren't gonna be growing much with their mouths shut like this. Way to spoil the mood, kitty!" Zero-Neptune snapped her fingers, "Good thing I've only been getting better at handling this power! You're a pretty horny couple, aren't you?" she asked out loud, knowing she would get no response as she observed the giantesses, "Let's let that fuel you for now; kids gloves officially are off!"

And just like that, Noire and Neptune's slowly growing forms started getting bigger and bigger at an ever quickening pace. They were so devoted to each other's tongues and curves that they hardly noticed the changes around them. Now that they were impossible to ignore even by the most obtuse of night dwelling citizen, the sight of those constantly enlarging goddesses sent the people below into a panic. Lights started turning on in every apartment and house in the main city of Planeptune, with people gazing out to see two of the largest two pairs of breasts the world had seen smash together like squishy wrecking balls. The girls continued to make out in spite of the commotion surrounding their mind-boggling immensity. All they cared about was satiating their seemingly unending lust for each other.

Noire had turned bold enough to slip her hand down Neptune's ass crack, reaching down and around to squeeze her fat inner thighs. As she felt around, the catgirl managed to find Neptune's vulva, teasing its exposed flaps by circling it with a finger. This made Neptune squirm, which Noire took it as a sign to keep going. Moving her arm from Neptune's back right around she made sure to return the treatment on her breasts to Neptune in kind. Noire pushed her arm up between her much larger breasts and Neptune's, grasping her friend's left tit from within the monstrous cleavage to give her a good fondling.

Neptune didn't allow herself to be complacent. Even though Noire was doing an impressive job at keeping her on edge and shivering all over, she decided turn her own ministrations up a notch. Neptune's next move was to drop her hands from Noire's humongous tits and land them on the catgirl's thighs. Tightly grabbing onto Noire's lap, Neptune pulled her legs apart and then quickly pushed her right hand into the kitty's pussy, slipping two fingers right through.

Lewd moans reverberated into their mouths as they pleasured each other. The intensity of that passionate exchange was not just driving them crazy with arousal, but thanks to external interference was making their growth that more potent. In only a few short bursts, the enlarging duo stretched way past the first four digit size and simply kept on going. At thousands of feet tall, their obscenely endowed bodies were simply spilling out into the roads and growing in the direction of nearby buildings. They didn't have to move, their rapidly enhancing size was simply making them far too large to be contained within a few mere blocks.

And the citizens below couldn't wait to get out of their way. Their sudden appearance and the fact it had happened at the dead of night caught many by surprise. Many wanted to stay and watch just like the unseen one responsible for this uncontainable phenomenon was, but they fortunately all agreed on self-preservation. The main city was evacuated before those humongous lovers started to grow into the tall apartments nearest to them.

They didn't do it out of malice or ill will. They were simply way too horny to stop themselves. The energy making them bigger only helped increase their arousal, which in turn made them that much more eager to molest each other and as a result continued powering their growth up. A vicious cycle of perversion had begun and the city was going to pay simply for being in the way of two aroused giantesses.

Noire had no words to describe the pleasure she was feeling. Watching Neptune grow had been hot, growing herself had awakened every primal instinct in her being, but growing together with Neptune was the best thing that had happened to her in her life. It felt like there were no boundaries, no limits to worry. All she had to do was follow the voice in her head telling her to fuck this lilac headed woman's sexy body.

In a vastly similar situation, Neptune was in love with everything about their changes. She had never considered growth as a kink, let alone something she would get off to until today, but the fact she was doing it with such a beloved and close friend made it a million times better. She didn't want it to stop. She wanted to yell out for them to become even bigger without realizing the fact her ass and Noire's hand on it were crashing through a collapsing building as a result of their seemingly endless ascent. Neptune was completely absorbed into the experience. Neptune's hand moved away from the catgirl's breasts and to her perky butt. While her intention had been to grope Noire's ass, Neptune instead grabbed Noire's tail by mistake.

The fiery kiss broke as a meowing Noire dunked her head down against Neptune's chest. The reflex occurred due to the poor catgirl being unused to her new appendage's sensitivity. She felt weak and at the same time even hornier. The strong sensations were so overwhelming all she could do was bite and smack her hands against Neptune's tits and pussy.

Neptune cried out at the sudden halt in kissing and ramped up touching. Most surprising to her was how Noire was basically screaming out in lust with literal tons of boob in her mouth. "N-Noire? Ahhh, th-those are my boobs, not oversized ball gags! Nnngh!"

Noire didn't let go. She just bit down harder, yet her teeth couldn't do much in the way of hurting against so much boob. The kitty wanted to tell Neptune to let go of her tail because it was driving her crazy, but she couldn't talk. "I feel like some dumb animal!" Noire thought with flushed over cheeks. She tried looking up at Neptune hopefully, wagging her hips left and right to see if she would get the hint.

"Huh, wh-what's with the puppy eyes? Wrong character trait, Noire!" Neptune then squealed as Noire angrily bit down, sending an outrageous jolt of pleasure through her mountainous jugs, "Eeee!" That was it, however. Overloaded with pleasure, Neptune briefly lost her grip as she jerked backwards and finally let go.

Noire gasped as she finally was able to calm down. She let go of Neptune's tits, now covered in her clear slobber and only slightly reddish and glossy even after so much biting; thankfully without any damage. The gargantuan catgirl pulled back and stood up, angrily pointing down at Neptune with her tail whipping the air. "D-don't do that again! That was... that was...!" Noire wanted to say the idea of being manipulated by her newly found animal instincts was horrible, but the truth was it had been a mind-blowing experience to have her tail-base stroked like that.

"Do what? Oww. Were you trying to get milk out of me or something?" Neptune flinched a little as she held up one of her enormous tits to her face, inspecting the suckled on spot that was nowhere near the nipple. As she looked down however, Neptune could see her legs were stretching along the streets that surrounded the park, occupying the roads with their length. Not just that, but she quickly took notice that her astonishingly large ass had taken residence onto a series of destroyed buildings that used to sit pretty across the park. Neptune's eyes finally arrived at Noire's feet flattening several vehicles in a parking lot, with her standing just as tall as one of the biggest buildings surrounding her. It finally hit her that they had both grown so massive that the city extremely confining to them. Neptune stood up to address her friend, "Never mind that! Look at how big we got!"

Noire had been busy trying to find the exact words to reprimand Neptune since the unexpected tail grab had more or less interrupted their hot session. She hardly had paid any attention to her surroundings, but the scope of the situation became very clear once she noticed she had to crane her neck back to look up at the noticeably taller Neptune. If the miraculously intact skyscraper next to Noire was near the 2,500ft. tall mark then Neptune was at least 3,000. Noire glanced about to confirm the situation, but when she tried to turn she forgot the several extra thousand tons of boob flesh she had recently put on. Like two squishy yet devastatingly heavy wrecking balls, the catgirl accidentally knocked her voluminous chest into the skyscraper next to her. Her humongous breasts smashed into the construction, making it snap at the top. "Eeep!" she shrieked, "Ahhh, I didn't mean that!" Noire panicked as she scrambled to grab the collapsing part of the building into her arms, but only managed to clumsily dig her tits down onto the surrounding, slightly smaller buildings, compacting them under the weight of her chest.

Watching the klutzy catgirl unwittingly demolish things, Neptune came to a realization. "Oh! Now it makes sense why they call them knockers!" she hit the bottom of her closed hand onto her palm.

"Sh-shut up and help me before I squish somebody, nyah!" Noire angrily cried, her ears splaying over as she mewled. Neptune took a few careful steps forwards, but then she noticed how quiet their surroundings were. She briefly took a glance into several of the taller apartments and noticed all the lights were on in every single one of them yet there was nobody around.

That was when Neptune realized the city must've gone on alert and evacuated as a result. "Whew! Don't worry Noire! I think everyone's gone from the city!"

"Everyone's gone from the city... Nyah?" Noire quickly thought about her words until now and the phrase she had just repeated, "Th-the city... KYAAAHHH!" she suddenly let go of whatever crushed debris she had been holding and began smashing her feet onto the asphalt, cracking it under her weight. "Everyone in your city saw us naked and kissing and fondling and me as behaving as a horny house cat! Nyooooooo!" Noire screamed as she shook her head, causing her long black hair to wildly wave left and right now that it wasn't neatly tied by her blue ribbons.

"Wow, you certainly got your priorities in order, Noire! I think my impression meter's all full for today!" Neptune couldn't stop laughing, but she didn't want Noire to focus on feeling bad, knowing she could get very self-conscious. Instead of merely taunting the whiny catgirl this time, Neptune stepped closer and took both of Noire's huge breasts in her grip. "C'mon, Noire! Look at how busty you are! You're so cute as a catgirl to boot; you make a gorgeous giant!"

"Ahhh!" Noire mewled out loud, pressing her arms up against her chest as Neptune groped her. "Y-you really think so? Wuh-wait. Th-that isn't the point, nyah!"

"Of course it is!" Neptune grinned. Having no intention to let go of Noire's titanic jugs, Neptune hugged her friend and mashed their huge tits together. The force of that action made Noire reel back against what remained of the skyscraper, making it collapse against the catgirl's ass. "Haven't you played those silly rampage games with big monsters? They don't look half as good as you do. Kitty Noire's my favorite giant!"

Noire shivered as she lost against Neptune's advancing, larger form, making her legs tear through damaged buildings as she walked backwards from the pushing. "I guess that's true, b-but still! I can feel myself growing even now... it's a lot slower than before for some reason, can't you feel it?"

"And it's making me feel so horny, too," Neptune stuck her tongue out with half-lidded eyes, unaware that their constant lusting for each other was the very source for their monstrous expansion. The only reason they were not shooting up in excessive bursts was because they had stopped manifesting their arousal through sex. "We won't hurt anybody, Noire. There's always a convenient escape route for little people in the case of end of the world scenarios and stuff. Don't we take care of things like that on a regular basis?"

"R-right...?" Noire nervously laughed, seeing the irony in her complaints given that fighting monsters many times their size wasn't that uncommon. "We've battled fearsome monsters before. But I had never considered the option of, uhm..."

"Being one yourself? Well, like I said, you look way too cute to be a monster! Your fan club out there would murder anyone that turned you into an ugly beast after all!" Neptune chuckled.

"S-stop saying such weird things, nyah! Ugh, fine! It's your nation after all, humph!" Noire puffed her cheeks out, pouting at her larger friend.

"Oh, it's not like I wanna destroy the city or anything, Noire. But you can't ask me to settle down at this point!" Neptune pushed Noire against another skyscraper, pinning her against it with a big smile. "You did go out of your way to turn me on."

Smiling back at her friend, Noire put her arms around Neptune's waist to hold her tightly. "I figured you wanted it as much as I did. A-and... I'm still very pissed that you grabbed my tail like that! So don't do it anymore, okay?!"

"CPU's honor," Neptune beamed. This time it was she who pushed for a kiss. They made out for an entire breathless minute during which the horny couple could hardly stay put. Excitement washing over their minds, they rolled sideways, furiously kissing and groping each other. Their bodies smashed into apartment complexes and more skyscrapers, and their feet trampled upon more abandoned vehicles and knocked over every streetlight and lamp in their way. They were simply too big to go anywhere else, and they couldn't hold back any longer. They wanted each other badly.

"Ready for round two then, girls?" Zero-Neptune panted. She was lying down on a hill at the outskirts of the city, by now very aware of where this was going. Her legs were sticky with her juices, she hadn't been able to stop touching herself since every time the grand spectacle took a break, it promptly resumed with even more unbridled passion. "You already made me switch hands. Got my fingers all tired. Don't stop now...!" the unseen voyeur cheered, deciding to simply watch this time as she pleasured herself to the hands-on action between the two lesbians.

When the second kiss broke, Neptune used her larger body as leverage to lift Noire up by the waist. The catgirl moaned as Neptune captured one of Noire's hyper sensitive nipples with her mouth and began to tickle it with her tongue. Noire tightly gripped Neptune's forearms as she helplessly mewled, her gigantic tail so strong as this point that it could smash cleanly through the buildings they were trampling.

With so much pleasure focused on Noire, the catgirl swelled bigger than Neptune could handle, her breasts becoming so comparatively gargantuan that they again ended up smothering her entire face. The bigger Noire grew, the more weight Neptune had to carry, and she was simply unable to keep up. Her arms gave up and she let go with a whimper, her legs wobbling as she began to quickly fall back until her apocalyptically big ass toppled an entire block over. "Nnghhaaaaa!" screamed Neptune.

"Are you okay, nyah?" Noire panted as she ended up unwittingly straddling Neptune again. The catgirl was forced to grab and separate her breasts so she could peer down at anything below. There was that goofy, pleasure-struck expression on Neptune's face again, but something was off this time. "Neptune? I didn't suffocate you for that long this time, nyah!"

"I-I know, ahhh, i-it's not th-that...!" Neptune stammered, her tongue lolling out as she panted. "D-down there, nnghh!"

Noire blinked in confusion. She shuffled a little, scooting to the side to look over the fellow giantess' hips. "Nyah? Oh geeze!" the catgirl startled as she saw the condition of the block Neptune's ass had smashed into. Most of it had been mercilessly flattened under her shapely fat peach, but one of the relatively smaller buildings had ended jammed into Neptune's juicy snatch; with god-knows-how-many wedged up her ass crack. "D-does it hurt? Are you alright?"

"I-it... ahhh!" Neptune gasped as even the smallest pelvic wiggle rocked that rigid building trapped within her folds, "It feels s-so good! Noire, move it!"

"What?" Noire's ears perked up as she stood up in attention, her blimp-shaming tits doing a little bounce.

"I-I can't... oh God it feels... nnghaaaah!" Neptune was creaming herself at the incredible rush of having smothered so much under her bulk, but the focal point was on the edifice stuffed up her vagina. As Neptune desperately thrashed, her thighs ended uprooting the entire building off its foundations. Lying on her side, she shook her massive ass at Noire and begged: "P-please move it around in me! It feels so gooooood!"

Noire was caught by surprise, but that inviting behind was too gorgeous to refuse. The fact Neptune was for one the helpless one was turning Noire on beyond anything else. The catgirl dutifully crawled over to Neptune, having to hip bump a stadium to fit herself next to her needy friend. "L-Like this?" Noire was excited, but that didn't make her any less nervous when she used her hand to grasp what remained of the edifice outside of Neptune's drooling cunt. Just touching the concrete made Neptune squirm all over and scream out loud, which told Noire to keep going. "It looks like it feels really good, nyah..." observed Noire as she tilted the building left, right, up and down, being turned on at the loud squelches produced by Neptune's sex.

There was nothing Neptune could do to resist this. She was in heaven, her innermost temple defiled by what used to be the home to dozens of people. Neptune hadn't planned for this to happen, but she couldn't stop relishing the sensation. She felt her vaginal walls clamp down onto the concrete walls and steel beams attempting to hold the structure together, eventually failing to against so much pressure. Neptune felt her womanhood compact and destroy the object as she grew. The excitement gradually dying the bigger her body became and the wider her hole turned as a result, all Neptune could feel in the end was Noire's fingers toying with her labia. Over 4,000ft. tall and growing, Neptune was surprised to see Noire stay competitive with her own height. It was only then that she noticed the catgirl had been using her free hand to finger fuck herself while servicing Neptune. "Th-that's some multi-tasking, Noire..."

"I-I couldn't help myself, nyah!" Noire happily admitted, "This is so sexy. I can't hold it in anymore, Neptune. I want to fuck. Hard. Nyow!" she pounced her equally oversized friend down.

"Whoa! Hey!" Neptune laughed as they tumbled backwards like a giant ball of disaster, their incalculable weight demolishing everything in their path. "What got over you all of a sudden? Gosh, I can't take it anymore either! Mmm..."

They engaged on a third kiss, only this time their legs crossed over each other's. The maneuver was clumsy at best at the start as they tried to find a comfortable way to make their needy sexes touch and grind without their leg muscles cramping. Once they had settled into a good position, their kissing picked up in intensity and so did the pelvic thrusts. Their hips smashed into one another, cracking and fissuring the ground around them as they fucked together.

To Zero-Neptune, this wild display of primal needs being satisfied was nothing short of a five star performance. She was many times tempted to jump in and join them, but she held back with whatever little willpower she had left. Simply watching them was giving her more pleasure than what her tired digits could accomplish.

The bug-hunter saw how the city progressively fell to the heated, raw carnal action and came again and again. Most of her pleasure was derived from watching them simply grow bigger and bigger, covering all they destroyed under more and more of their deliciously curvy forms. 4,200ft, 4,300, 4,400, it was unstoppable.

Steadily closing the gap to a mile in height, Neptune and Noire moaned out loud in shared bliss. With their hands roaming their goddess-like forms and their ceaseless grinding, it didn't take long for them to reach the apex of their sexuality. They broke the kiss to scream out into the air; the high pitch shattering whatever glass had remained intact from their indiscriminately destructive romp. The orgasm they shared made both the close-eyed Neptune and Noire see flashing colors as a result of the sensorial overload. Mixed juice squirted out of their pussies like a waterfall of nectar that flooded the main city. And this degree of lustful joy only managed to contribute the strongest burst of energy yet, making the two lovers cry out in delight as they doubled their size in one final flare of mind-boggling enlargement.

"FUCK!" Zero-Neptune screamed out as well, hitting her hardest peak yet with such intensity that she almost passed out. All the dimension hopper could do at this point was roll herself onto her back and lie there, panting with eyes glazed over. "Th-that was... amazing. That was so good! I got so excited while watching Nepgear and Uni go at it earlier, and then Blanc using Vert like a dildo, but this takes the cake! Mmm, making them grow so big and sexy though..." Zero-Neptune daintily brought up her exhausted hands to her face. Her indexes and middle fingers were still soaked, the skin having turned lightly wrinkled from absorbing so much humidity. She giggled and brought her hands closer, flicking her tongue at her juices before she looked down at her cleavage. The Nep-note was still safely kept away between her massive breasts.

Looking out into the distance, Zero-Neptune noticed her other self and the catgirl cuddling after their session. She smiled at them and then grinned. "There's no reason they shouldn't enjoy themselves a little more. I might be exhausted, but they're raring to go another round!" she yawned, ready to take a little nap, "But before I nap..." she clapped her hands, closed her eyes, and focused on her ability to enhance the two enormous ladies, "...let's see how far you go before I run out of energy!"

"H-hold on a bit there, thunder thighs!" a squeaky voice came from within Zero-Neptune's cleavage, making her mammaries jostle. It was Croire. "You already had your fun! Don't be so greedy! If you keep making them bigger, they're gonna outsize all of Planeptune!"

"That's the idea!" Zero-Neptune giggled.

"Seriously?!" Croire argued, "What happened to Chaotic-Neutral? At this rate they'll end up too big...!"

"That's what the save-state is for, silly!" the amazon yawned again, turning on her side as she closed her eyes with a smile. "And for one, I'm hoping I wake up to something interesting!"

"What? Wait, wait, don't mmmpph...!" Croire attempted to communicate, but with Zero-Neptune's massive tits pressing onto one another with the Nep-note smothered between, the creature's complaints only came out as muffled noise.

"Nyaaaah..." a satisfied Noire kissed one of Neptune's nipples lazily, "That was so good, Neptune."

Moaning softly, Neptune rubbed a hand between Noire's ears, stroking her as they cuddled. "It's gonna be hard to top this weekend, that's for sure. Hey, so, can I bum some cash off ya for the reparations?" she grinned.

Noire looked around them, her red eyes unable to discern anything resembling a city remaining under and around their combined bulk. She nervously swallowed. "This is going to take a lot of money to fix."

"And to explain!" Neptune added with a sheepish grin. Before she was able to continue quipping however, a strong sensation that shook her very core made Neptune's eyes freeze on the spot. "D-did you feel that?"

"Nnnnhh..." Noire purred in agreement, grabbing onto Neptune as she shivered. Pleasure shot up the pair's respective spines as their bodies began to shoot up in size at unprecedented speeds. "N-Noire, ahhh! I feel like I'm going to burst...! Why is it so strong now?!"

"I-I don't know!" Neptune groaned as she felt her feet growing out to the edge of the city. "We're waaaaay beyond the limit of Planeptune though!" Indeed, their size was escalating so fast that they had already doubled their height again without even making a conscious effort. Their now several miles tall bodies tripled and quadrupled in the next few moments, burying the futuristic kingdom of Planeptune under their ever increasing vastness.

To the people below, it was like watching two blindingly fast mountains of flesh that literally put the rocky mountains that decorated the country to shame with their powerful ascension. It was all poor Neptune and Noire could do to maintain their sanity throughout the mind-blowing growth as they were forced to see their surroundings dwindle before their very eyes. Lush forests that made the natural parks in Planeptune look small had been reduced to pathetic shrubbery to the growing duo. Mountains started looking like tiny upheavals of stone among the dirt, and it wasn't long before they could see out into the neighboring nations.

Haneda city in the north was the first one to see the impending advance of the rapidly growing ladies. It didn't matter how fast they ran away, however, it was impossible to escape the constantly swelling visage of the truly immense giantesses. Panic seized the masses, but there was little they could do other than to find a safe place and pray to survive being buried under beautifully oversized women.

"Eeep! My feet are getting wet, nyah!" Noire whimpered as she felt her toes brushing over the approaching coastline behind her. She turned her head around to glance back as she held onto Neptune, soon realizing that their pace quickened with every breath and that the sea was very close. They were well on their way to not only outsize Planeptune, but the entire continent.

"Why's that such an issue all of a sudden? You already said that mmmpph...!" Neptune grumbled as she desperately flailed her arms. With Noire clinging to her, those massive breasts of hers were now completely covering her face once again. "Bwah!" she gasped as she managed to push Noire away, but made sure they were holding hands to avoid being separated. The sight surrounding them shocked Neptune, but a certain part of her was relishing the experience with serendipity. "Now how's about this for a plot twist?! We're bigger than all of the kingdoms!"

"And we're only getting bigger and bigger, nyah..." Noire remarked with a frown of concern. The two CPUs could only marvel at the entirety of their world as it shrank around them. Whereas only moments before they could clearly see all of Lastation, Lowee and Leanbox, they could barely make them out anymore thanks to how fast they had grown. And it didn't look like they were close to done. "When are we going to stop?"

"Well..." Neptune gave up. With her body inexplicably growing and growing without stop, she didn't care about finding a proper explanation. Fast, slow, powerful or nuanced, growth felt incredible and she wasn't going to start nitpicking after she had had sex all over Planeptune with her friend. "Y'know what? Screw being tiny. I just wanna grow huge together with you, Noire!"

"Neptune...?" Noire turned her head to look at her friend in the eyes, and immediately understood her point of view after she had repeated the same phrase she had used earlier. "No. I'm not going to argue about it," she smiled, "Let's get even huger! We can take care of things later!"

At the rate they were growing, hundreds of miles soon became thousands. They became so unimaginably big that their bulk inevitably spread out from the center of the continent to the rest of the world. With ongoing bursts of raw untamed power, their continuously escalating size turned them into female titans of indisputable sexiness. It didn't matter which nation had bigger geography, the girls became so impossibly tall that not even with all of them put together could they come close to comparing to them.

And they grew and grew and grew, eventually piercing through the heavens covering all of Gamindustri. The hopelessly outsized landmasses became little more than colorful patches along a flattened relief once the two biblically large goddesses ended outgrowing and exiting the planet. "I... I never knew the world looked like this..." Neptune observed as she held both hands with Neptune. The endless void around them looked extremely empty, but their focus was on the shrinking sphere betwixt them.

More and more, Noire and Neptune became hypnotized by the surreal experience of having outgrown the entire world. Their cosmic expansion only came to a stop once Gamindustri became situated between Noire's humongous breasts. The whole world they had once explored was now only the equivalent of a baseball to the girls, which meant that even their tits dwarfed their home world. "Th-this is... this is turning me on, nyah..." Noire fidgeted, blushing hard as she simply looked down at Gamindustri, not daring to move an inch.

"You're not the only one! Guess I spoke too soon about this weekend being hard to top, huh?" Neptune nervously laughed, her jiggling causing Noire's massive rack to jostle about and bounce the sphere about.

"Ahh! Careful, nyah!" Noire mewled pathetically, but Neptune made sure to push the world back into nestling between the catgirl's planet-shaming boobs with a finger. "Neptune! What if you crush everyone?"

"Relax, will ya?" Neptune reprimanded, but gently put her hand onto Noire's head to give her a rub between her ears. "Unless we try to squish it really hard, we won't hurt anybody, I think. Just gotta be gentle, that's all!" she explained to the huffy feline, giving her a snicker. "Oh c'mon, Noire. Lighten up a little! We might be too freaking big for the world, but hey, no need to worry about bust charts over in the internet now, right?"

"You were complaining about my priorities only a little while ago, nyah! Humph, seriously! We're bigger than Gamindustri and you can't even quit that meta habit of yours." Noire huffed, pushing her tits up with her folded arms. She could hardly hide her purring as Neptune scratched her fluffy ears, however.

"Well, I've got other ideas of what to do now," Neptune playfully batted her eyelashes at the fellow giantess. "You're not shy about the whole world watching, are you?"

"Wh-what? S-scandalous! W-we can't..." Noire shuddered to think of the repercussions, but Neptune was very eager to put her hands on her butt.

"Oh, but we can, and will!" Neptune grinned, her cheeks flushing with color as she felt lust for the catgirl renewing. "And we'll make them all watch why we're the best pairing ever." She smirked, ensuring Noire couldn't resist by grabbing her tail base hard.

Noire shot up straight and dug her fingers onto Neptune's shoulders, arching her back and emitting a very loud: "Nyaaaaaaaaaaaah!" that resounded within the vast expanse of outer space.

The End.