FSE

Furry search engine

formerly SoFurry search engine

"Alright, kid! Ready to feel the pain once more?!"

"You bet, old man!" Brex immediately shouted. The brown otter immediately flexed an arm proudly to his trainer, the black dragon merely nodding with a grin.

"Good!" Moyan grinned as he removed his shirt, showing his large bulk for the otter. "We're scheduled for upper torso training today so prepare to feel your arms weak!"

Brex chuckled, admiring his trainer's muscles before removing his shirt, showing off his lean frame, the results of his training. He then started rummaging through his gym bag for his tank top, all the while taking glances at the black dragon who started flexing his 6 foot 1 muscular body, muscles bulging for every pose

The brown otter didn't even bother hiding his infatuation with the dragon's body, whistling and hollering for the dragon to continue. Moyan just laughed at his antics, flexing an arm for the unabashed otter. "Like what you see, kid?"

"Of course!" Brex said, flexing an arm as well. The two laughed out loud, only stopping when deafening rumbles came and silenced them. Brex, knowing what it was, grinned and immediately ran to the corner just to see the grand sight that awaited him.

A mega-macro gray wolf traversed the other side of the locker rooms reserved for such monsters like them. The otter can't help but ogle at the massive muscle titan, probably thousands of feet in height and thousands of tons heavy. The titan was talking to a smaller macro hyena, the latter only reaching the titan's midsection.

Brex just sighed. God, being in the presence of such manly, titanic men was always such a treat. Such as this was a normal sight at the Onyx Crucible, an incredible high-tech gym where even the freakiest of behemoths can work out. It didn't matter at all how big one was, may it be thousand feet or even miles, if they wanted to work out and train their behemoth bodies even more, then this place was the best there is.

Especially since the gym was but a part of a much larger organization, one that also owns an incredibly popular lab. Onyx Labs, as it was called, had made their mark in the world for their effective growth-inducing food-based products; from serums, to energy drinks to even some supplements, they had it all and most importantly, it worked.

It was just one of the reasons the college student decided to work out here, to see some absolutely titanic men and to avail of some Onyx Labs' supplements. And though he hadn't managed to get a few of those supplements due to his limited budget, he at least got to see some massive men, all while working out his body. He even got a hot trainer to boot!

"Oi, kid!"

Speaking of, the otter turned around to see the current target of his infatuation, grinning, shaking his head at his usual antics before removing his pants, revealing his loose gym shorts underneath. "Keep staring and those giants are gonna have their way with you."

Brex could only grin, eyes shining, a paw brushing his red hair as he walked back to his locker, grabbing the tank top on his way. "Sounds like a fun time to me."

"Of course, you say that, you horny otter." Moyan said as he crossed his arms, his muscles bulging into titanium relief as he eyed the otter. "If only you focus that energy in your workouts, Brex."

The otter only scoffed, the wind knocked off his sails as he wore his tank top. "Fine, old man. I'll do my workouts."

Moyan smirked. "That's the spirit, kid." He clapped the otter's shoulder. "Before you know it, those monsters will be bowing down to you, instead!" The two laughed, all the while Brex buckled under the weight of his trainer's hand. The two dispersed back to their respective lockers, the otter still taking glances at the two giants, their massive muscles heaving and fully pumped up.

Damn it, he really needed to focus. Brex began grabbing his stuff from his bag before he looked to his side, his trainer talking to someone, probably a customer from his tattoo shop. The brown otter shamelessly stared at all of what the dragon had to offer; thick, sprawling back, large arms, and even those thick pecs bouncing for every movement. God, he was so sexy...

But Brex can't help but wonder. Sure, the dragon was quite big, being a 6 foot 1 foot tall and 198 pounds hunky dragon, his thick tail not included. But many times, the thought of Moyan becoming a macro, maybe even a mega-macro passed by his mind and made him aroused. Just the thought of him looming over while he did his exercise...

"Oy, Brex!" Moyan screamed, seeing his client having an erection. "Get moving or I'm leaving you here blue-balled!"

"Fuck off, old man!" The otter's cheeks tinged bright red like his hair as Moyan laughed at the otter's expense. Right, right, he should focus on his workouts first before getting it on with his trainer again.

With them now fully clothed, or half-naked in Moyan's case, the two talked about what will happen for today, the sets. As Moyan was about to say something, the door opened and in came a familiar face. A bull that, though not even close to the size as the giants from earlier, still towered over Brex and even Moyan by a couple feet. The sweaty bull immediately smiled as he saw his two friends. "Oh hey! Nice to see you two here."

Brex and Moyan turned around to see a massive, hulking bull walking towards them with a smile on his face, his pumped-up muscles heaving, fresh from his session. The otter smiled, happy to see another familiar face as he waved.

"Oh, hey Kyoju! Done with your workout?" Brex asked, having to look up at the bull whose hulking frame easily loomed over the normal-sized lockers. The brown bull, Kyoju, smiled, eyeing the two with a calm respect.

"Yeah. Just gotta hit the showers before working." He said, scratching his head, letting his pumped-up, massive bicep jump up and down, his long tail flailing contently. "And you two? Gonna start your session with the training fanatic, Brex?"

"That's right, you big brute!" Moyan said proudly as he hugged the otter from behind, the otter's back against his hardened body as the dragon smiled at Kyoju. "Gotta make sure the kid here keeps things up if he wants to be a trainer like me!" Kyoju flexed an arm and Brex couldn't help but laugh.

"Hell yeah I do!" Brex said as he flexed his arm, showing off his gains to the tall and heavy bull.

"Well, that's great! I wish you luck, then." Kyoju smiled before pointing a thumb to himself, his smile turning into a knowing grin. "Just...if you two wanted a boost, especially you, Brex, then you know who to call, 'kay?"

"As if the kid has the money..." Moyan scoffed with a grin of his own, and the duo of towering men laughed at that.

"Oh, fuck off old man!" Brex scoffed, pushing the man away before laughing as well, all while eyeing Kyoju's physique.

Despite the brown bull's hulking physique and towering frame, Kyoju was deceptively smart, as expected from a researcher at the Onyx Labs. His experiments and contributions helped more than a handful of people here attain their monstrous size, even his own; just one look at his 8 foot 3, 697 pound frame and you know the products he made and tested worked like a charm.

"Anyway, thanks for the offer, Kyoju! I'll keep that in mind once I get an extra budget." Brex said, an energetic smile on his face. He was thankful Moyan introduced him to the massive, friendly bull, especially when he learned that the bull sometimes conducts experiments to random patrons of the gym. For free, too!

Though, according to Moyan, some of those experiments can be quite...too much. Even when learning all that, he still wanted to see one of those accidents first-hand. Probably even participate in one.

Speaking of, he looked over to Moyan, who simply went back to his stuff, and somehow Kyoju being here flared his previous thoughts of seeing his trainer as a mega-macro. Maybe he could...

Nah, he shouldn't. Besides, he didn't even have money to spend on himself, let alone for Moyan. Brex sighed. If only there was something that could grow that old dragon...something that won't burn a hole through his wallet...

The three men had a short talk about what was happening in their lives before Moyan went ahead, his bottle and towel with him.

"Gonna go stretch for a moment. Don't dawdle, kid. And see you next time, you big brute."

The two waved him goodbye before going back to what they were doing. Brex was expecting Kyoju to leave and was fixing the contents of his locker when suddenly his surroundings darkened, an intimidating presence looming behind him.

"Hmm?" The otter turned around, only to see the big bull himself, standing in front of him; his heaving muscles were still pumped, and his easygoing smile was replaced with something...mischievous.

The otter was suddenly wary. This was the first time he saw Kyoju like this, and now those stories Moyan told him are at the forefront of his mind. Still, the otter smiled like nothing's wrong. "Hey, Kyoju. What's up?"

The grin of the massive bull only widened, looking around before whispering softly. "Nothing. I just have something to show you, Brex."

Brex had a weird feeling about what was coming, trying to stop his tail from thumping as he humored him and stood closer, their physiques practically miles away despite the bull only being 6 years older; a staggering difference of 3 feet in height and almost 400 pounds of muscle.

Fortunately, the bull crouched down as he showed off his tablet, looking small against his hand "Here, check this." He simply said.

Brex did, and his curiosity flared when he saw some...pixelated game of sorts. The otter read the title of the game, even more confused. "'New You'? Is this some new game in the app store?"

"Well...yes, but it's not just a game." The bull looked around again before going back to Brex who was now incredibly suspicious, rightly so. "Heard it from a friend of mine who heard it from..." The bull stopped before shaking his head. "Never mind that. Anyway, this app, apparently, could make someone grow incredibly huge, quick and easy."

"What?!"

The bull immediately shushed him before looking around, worried someone would walk in on their secret meeting. Still, Brex's gut feeling was right, it was about growing! Though he didn't expect such a cutesy-looking app could cause one, what kind of tech does it involve, even? Though, I guess Kyoju and those in the Labs managed to-

Hold on. Something about what Kyoju said, or what he hadn't said, struck him. "Wait, this isn't made by you guys at the Labs, isn't it?"

The bull chuckled, somewhat surprised. "Nice catch, but you're right. This isn't an Onyx Labs product. We're more on food products, not mobile apps." Kyoju said, obviously excited as he continued, his tail flailing almost wildly. "Still, after all the rumors I've heard, I've become quite curious about it and downloaded it myself."

"Rumors about what, exactly?" Brex asked, eyeing the tablet, his previous eagerness watered down. No info about the owner's seemed sketchy already, but if Kyoju had downloaded it...

The bull crouched even lower, his massive thighs flexing even more as he whispered. "I heard the last time someone used this, a badger became so muscular that he became so immobile, so much bigger than the universe."

"T-the fuck?!" Brex widened his eyes before he had a paw on his mouth again. Who could blame him? Bigger than an entire universe? That's just insane! He can't even imagine the amount of muscle mass one would have to even achieve that size. Such an exaggerated tale...

Brex frowned. "That has to be fake. There's no way..."

"Well, there are other rumors, but all of them involve growth in some way. Quite curious, isn't it Brex?" Kyoju said and Brex couldn't help but stare at the tablet, an idea forming in his head as the bull stood up straight, a ghost of a grin on his face. "Well, like I said, it's all rumors anyway. Just some hearsay, right Brex?"

"Uh, yeah." Brex said, his eyes narrowing at the bull who merely chuckled. "Yeah, like an app could do all that."

The bull smirked, nodding along. "Yeah, you get me. Though, can you imagine if it really worked? I wonder what it would look like, or maybe how it worked..." Kyoju was contemplative for a bit before waving at the smaller otter. "Well, I'm off to the showers. I just wanted to show you that app before I go to work." Kyoju chuckled, his tail waving about as he left. "See you next time, Brex. And good luck with your workouts"

"You too, Kyoju." The brown otter said, his mind still trying to decipher what the bull had just said, as suspicious he was acting. His thick tail was thumping about as he eyed his phone. "Hmm...an app that could grow someone..."

Driven by his curiosity, he opened his phone and headed immediately to the app store, searching for that app. True enough, it was there, and the descriptions and pictures on the page practically egged the otter even more with how much 'it works' and all that. "It looks real enough, but..."

Brex was thinking hard, his mind was still in between being suspicious that the app will work and believing that it will. Because if it does...

The otter breathed out, his erection grinding against his boxers. He could probably...no, he could definitely use it on Moyan, his horny thoughts of seeing the dragon bigger, so big that he would tower over a macro, no, a mega-macro made his cheeks blush. If this was real...

As if on cue, the old dragon came back and shouted to the otter. "Oi, kid! What are you waiting for?! We're burning daylight!"

Brex didn't have the time to utter a response as Moyan immediately left, leaving him alone with his thoughts, eyeing the app.

Would he? Would he really download a mysterious app that, at worst, won't work and end up with his phone having a virus, and at best, make Moyan the biggest he could be, even bigger than the biggest of mega-macros in this gym? Would he really?

...

...

Yeah, it was a no brainer.

"Fuck, yeah. Might as well!" Brex said with a smirk, tapping the download button with as much gusto as he could muster, before grabbing his other stuff and exiting the locker room, suddenly incredibly eager for his workout.

So eager, in fact, that he didn't even realize that someone took a picture of him from behind...

***

The way to set up the app was surprisingly simple; with what the app apparently does, Brex expected to do some elaborate ritual to open it, let alone make it work, but he ain't complaining in the slightest.

First off, he needed a picture of 'yourself', or with what he's planning, Moyan's, if his interpretation of the instructions was right. Luckily enough, the dragon was waiting for him just by the benches, stretching his muscled limbs around, so Brex was able to get a decent picture for the app and for himself later on.

And then when the option to mess with the parameters appeared, he did so, not expecting all the many, many options available to him.

"Fat, muscle, cock, height, even other technical stuff...damn, this is a lot..." Brex mumbled, his mind flooding with so much impure thoughts; Moyan growing so fat, or so muscular, or even so hung. Shit, he's not gonna get a good workout at this rate, what with all these distractions.

In the end, he decided to set the game so that Moyan will grow both in height and muscle; he wanted to make the old man huge, not entirely immobile. Afterwards, he set it so that auto mode will activate during idle, the grower will be unaware of his new size, and most importantly, no time limit. With that settled, he pocketed his phone for now and started his workouts, else the dragon will put him on squats.

And now, here he was, focused on finishing his second set of bench presses, all while the dragon watched over him with his arms crossed. Brex let out a loud grunt as he felt the bar shaking, the shouts of his trainer encouraging him to go further. "C'mon, kid! Last one and...DONE! Nice set, Brex!"

With the bar immediately placed back, the otter stood up and flexed his pecs, feeling the lactic acid build up on his muscles. Brex heard the chuckles of the dragon as he relaxed and felt a hand on his shoulder, the grinning dragon beckoning him to the side.

"Alright! My turn."

Brex gave way to the dragon, helping him set up the weights needed. The otter simply stood by and grabbed his phone from his pocket. Unlocking it, Brex was bombarded by the colorful visuals of the game. The screen showed a pixelated version of Moyan, bouncing on top of some cube. The bottom of his screen was filled with a grid of icons he needed to match, and to the side was an almost filled bar. He flitted his eyes quickly to the dragon before swiping more of those icons.

The otter had been chipping away at the game in between sets, with the bar already near being full. Brex swiped a few icons until he managed to match ten of them, exploding into dust that powered up the bar, slowly filling up until-!

*DING!*

"Alright!" Brex shouted as he saw the level below the bar became Level 2. He immediately pocketed his phone and honed his focus on the dragon struggling on his set. The brown otter moved a bit closer, inspecting every inch of Moyan's shirtless body, anticipating the coming growth with a bit of healthy skepticism.

And then, it did.

It wasn't as slow as the otter expected. In fact, the dragon's muscles practically exploded as he raised the bar, causing the otter to quickly cover his mouth, eyes alarmed as he saw the dragon explode with so much mass in front of him.

"Holy fuck." Brex mumbled, his cock chubbing up under his boxers as he watched the obscene view of the dragon blowing up in size in front of him. The app worked. It really worked!

With every ascent of the bar, so did the dragon's weight and height. Three reps in and he was already twice as heavy and a foot taller than before, his black scales stretching to fit it all. Brex could see those lats becoming thicker and wider slabs of muscles, his massive ass slowly swallowing his shorts and even the bench underneath him. His knees and legs rose up as his limbs lengthened, gaining more mass and muscle than Brex could probably fathom; those arms look bigger than 40 inches now. The man was looking even wider, thicker, and just plain bigger than a bodybuilder of his height, and he was still growing!

But the best part was that Moyan remained unaware of everything. He just kept on pushing reps, from struggling to do reps to breezing through his exercise as he did rep after rep. Each time the bar lowered, his already strong arms, massive pecs, thick legs, and even his back surged thicker and bigger.

And when Moyan had finished his set, setting the bar with a loud clunk, it was obvious the growth wasn't done with him.

"Haah! That was too easy!" The large, growing dragon carefully navigated his bulk, too wide for the bench and stood up...up, and up. Brex clasped his mouth once again, the old man was now so goddamn tall, taller than even Kyoju!

The massive black dragon did a few poses, each one causing his body to still surge bigger, thicker, and taller than he was a second ago; a double biceps pose sent his biceps careening upward, flexing his pecs made his chest thickened, stretching his wide back caused it to widened up even further, and even his legs joined on the action, all the while he was growing taller and taller.

And then there's...shit, it was obvious that his loose shorts will look small on him now, the fabric being stretched so badly with longer and wider thighs, but the sight that beheld Brex was almost obscene; the tip of Moyan's two cocks peeking from his now tight shorts, and his balls filled the pockets, practically overflowing. Shit, the otter's mouth was practically watering, wanting to feel the heft of those-

"Aah, that was great!" Moyan shouted, causing the otter to look up, way up to the old dragon. His growth had seemingly settled down now, but the end result was just amazing. The man was surely more than 15 feet tall now, and his muscles! Sheesh, he looked more than a few tons now, probably close to five tons as his mighty muscles heaved for every movement.

The dragon looked down with a grin, his attention now at his client staring up at him in awe. "What are you looking at, kid? It's your turn on the set. Go! Go!"

"Uh, right!" Brex said as he walked closer to the bench, admiring how...massive the dragon had become. He felt so small against him right now, his head barely reaching the middle of his tight midsection. Even as the dragon was setting up the weights, carrying plates with one hand, he just stood there. He hadn't even realized he was now in the middle of his third set, his eyes staring blankly at the ceiling, going to the motions of his exercise.

It was just...unreal; his mind kept replaying that wonderful scene of Moyan growing. To think that that app actually did this, and this was only the first level too. How big would the old dragon be once their training was done?

And wait...he set it with no limit, right? Oh boy, how big would the dragon be? They have at least an hour still before the session ends, and it only took a few minutes for him to surpass Kyoju in both height and muscle mass. In an hour he could be even taller, and beyond that...

"You okay there, kid?"

The struggling otter tried to keep his cool as he looked up, getting aroused at the sight of that obscene bulge hanging above him, those massive pectorals even higher as the dragon loomed over him. "You look like you've seen a ghost or something. Wanna take five?" He said, his face just slightly peeking from the massive pec shelf, looking worriedly at the otter and not even noticing the new size disparity between them.

And shit, it was so hot, but Brex had to steady himself. If he could hold on, then there would be an even bigger Moyan to worship, to slather his tongue over, and most importantly, to grow.

"I'm...I'm fine!!" Brex shouted, a hungry grin on his face as he continued, motivated out of pure arousal over the promise of a much bigger Moyan.

"If you're sure..." Moyan mumbled before grinning, a bit of worry still in his eyes before he shrugged his massive shoulders and shouted at his client like a drill sergeant. "Then give me a good set or you're squatting on the stairs, you hear me?!"

"Loud and clear, old man!"

It took a few minutes at most before the two finished their first exercise, made longer when Brex kept staring at Moyan working out, with him using a bigger bar and bench, lifting weights many times heavier than his client. The sight of those overfilled pecs rising and falling , those arms so thick bulging for every rep will never leave the brown otter's mind.

After that, the two went to the next station. The sight of a 5'7" gym rat of an otter alongside the massive 15 foot 6, 4 and half ton heavy black dragon was almost laughable. Brex couldn't help but take some cheeky glances at the hulking dragon, doing a flex here and there. Brex's head hadn't even reached the dragon's midsection, giving him a good view of Moyan's obscene bulge bouncing for every step, those two cocks and massive cantaloupe-sized balls hitting the dragon's inner thighs for every step until Moyan spoke, his voice deeper.

"Alright, kid. Next up is curlers, this time we gotta raise up the weight, so be prepared." He said, his deep voice rumbling as the otter nodded.

With the plates set up, Brex immediately tackled his sets, all the while thinking of his trainer being many sizes too large, his cock switching between being flaccid or hard.

It didn't help that Moyan decided to join him, working out using a bigger machine, using weights that were practically impossible for the otter, all while gloating about his augmented strength and massive size, posing for every set; Brex had to distract himself by playing the game despite how much his arms hurt, else he would succumb to Moyan's biceps, thrice as big as his head.

It was after his second set that he managed to get close to filling the bar again, his dick on full mast once more. The otter managed to figure out how to properly manage the little power-ups he'd been getting, masterfully scattered around the grid.

With a grin and a single swipe, the entire grid exploded in a cacophony of pixelated explosions, the dust filling up the bar once...

...then twice!

"Oh, fuck." Brex mumbled as he immediately pocketed his phone, already backing away as he expected the explosion of muscle and size coming its way. He even grabbed his water bottle, prepared to quench his thirst.

And his waiting was rewarded immensely. It wasn't even long as the dragon literally bursted with so much size, jumping from 15 to 20 feet easily, his muscles practically bursting with so much mass, and his shorts practically exploded into shreds, his two cocks and his balls now out as his one curl brought the machine along with him.

"Whoops! My bad!" Moyan chuckled as he immediately untangled his massive, still growing arm out of the machine and stood up. The otter had to stop himself from creaming as the dragon just continued to grow from his previous 15 feet stature, all the while flexing his naked form. Moyan's muscles were pumped into size beyond what was normal, already reaching hyper levels of muscularity; biceps close to hitting his closed fists, pecs casting a shadow against his tight abs, his back pushing his limbs to the side, and his legs grew so thick that he had to shuffle just to move around.

And those cocks. Brex had to keep himself calm as Moyan's two hemipenes grew as well, not getting erect and yet already longer and thicker than Brex's torso, his balls getting bigger and fuller as well, already watermelon sized. With his frame continuing to grow vertically, Moyan was on the verge of becoming a macro himself!

"Haah, look at me, kid! Keep working out and you'll be just like me." Moyan joked once more, flexing his arms with a smirk, his overfilled biceps reaching close to his closed fists, all while his limbs were lengthening till his forearms were longer than a car, a bus even. He laughed a bit before looking down, way down to see his little client, having to look over his mattress-sized pectorals. He scoffed, seeing the otter just stand there, unaware that his growth was still going. "Oi, you're getting distracted again, kid! Get moving on your third set!"

"R-right!" The otter immediately replaced the weights to the ones he needed before starting his last set. He wasn't even starting when he was immediately distracted by the sight of his trainer posing beside him, his muscles bulging so obscenely powerful for every pose, bulging bigger as the growth persisted. It didn't even register to the dragon that he was ass naked in the middle of the gym, or was that the app doing its thing?

Still, Brex had to summon all of his willpower to continue his work and not just straight-up have an orgasm, his cock already leaking pre on his shorts as he struggled to curl.

But it was so hard, harder than before because the dragon decided to still continue his workouts, using a bigger machine and even heavier weights. Brex had to stand there and watch his trainer continuously growing, each rep causing his biceps, his entire body to add more inches, more pounds. It was to the point that at his last set, he moved on to an even bigger machine, hauling even bigger weights and pumping his muscles even more and growing even taller, all while Brex played the game slowly, his angry shaft pleading to be calmed down.

By the time the two had, miraculously, finished with their sets, Moyan was now a whopping 120 foot tall hyper muscled dragon, his muscles thicker than entire vehicles, veins all around that were comparable to a bodybuilder's forearms. Brex had to immediately drink water from his bottle to quench his metaphorical and literal thirst, and the massive dragon had the gall to chuckle at him.

"Alright! Let's move out to the next station!" The massive dragon rumbled as he slowly stood up, the otter feeling incredibly tiny as the dragon was practically like a building against him; Brex barely even reached the dragon's ankles at this point. He was ready to run towards the next station, knowing his trainer can travel faster with his much larger frame, but he was surprised when Moyan gently plucked him by the tail and immediately plopped him on his awaiting palm, wide as a room.

The otter was confused and incredibly turned on before the giant dragon spoke with a deeper voice. "There we go! Seriously, kid. I've been carrying you for weeks now, and you still try to run away." Moyan snickered, thinking that this entire thing was a ritual they've been doing for months. "Save your energy for your sets! You got a lot to work on today, kiddo."

Brex really had no choice on the matter, nervously laughing as he enjoyed both the rest and the amazing close-up view of Moyan's mighty muscles, especially those massive pecs hanging above him, bouncing obscenely for every step. Those mounds were thicker than entire buildings, and he couldn't help but feel so aroused at the sight of them, his paws clenching, wanting to touch those manly tits even if he knew he couldn't possibly squeeze them with his little paws.

Due to Moyan's size, it wasn't long before they reached the next station, the free weights, where an incredibly towering mirror stood against the wall for even mega-macros to use. As he was dropped into the normal-sized section gently, the dragon crouched down and guided him on what to do, pointing a massive finger to each shelf, the enormity of his fingertip able to eclipse almost all that was available.

"Start with some shoulder presses, Brex, then some flys, then finish it off with some triceps. I need to see those arms exploding after this, you hear me?!"

"You got it, old man!" Brex shouted, trying his best to ignore the dragon looming over him, his massive form casting a shadow so large. The otter ran to the familiar shelves, grabbing two dumbbells, and started his exercises in front of the mirror with renewed vigor.

At some point, he saw Moyan walking to the macro section, the shelves there reaching two or three stories tall holding dumbbells weighing 5 tons at minimum. Moyan grabbed a pair of those dumbbells and started doing shoulder shrugs, doing it so effortlessly.

Brex breathed out through his nose. As much as he wanted to watch, Brex could only continue his set, all the while his erection rubbed against his boxers.

Of course, he hadn't forgotten his little game. Every after set, he took a few minutes break and deftly swiped a few icons, applying the same strategy from earlier except this time with even more power-ups. He didn't expect to have his mind getting a workout as well, but it was all for the sake of a bigger Moyan to worship.

As he finally finished his shoulder presses, it was time to enact his plan. With power-ups filling most of the grid, he smirked as he watched the dragon continue to work out. It only took one swipe, and suddenly the grid exploded into a cacophonous mess of pixels, eclipsing that of his previous attempt with how much the bar filled.

Once...twice...thrice...four times!

"Oh, this is gonna be huge..." Brex mumbled, practically shaking on his seat just imagining how massive the dragon will be. The man was already 120 feet tall and probably 60 tons heavy, and now there will be more. So, so much more!

And he didn't have to wait at all, as the transformation started immediately. One more shrug and Moyan grew so much that it caused air to blast around him, his size jumping to a gargantuan 500 foot tall giant, his muscle thicker than houses. The dumbbells he had been using immediately felt so small, smaller than a toy against his hands. After another shrug, the growing Moyan looked over his paws and chuckled.

"Always love using these little toys..." Moyan joked as he gently placed them back to the shelves, having to crouch down as the shelves now barely reached his knees, before he stood up, still gaining more muscle, more height as he flexed about, each flex augmenting his size even more, taller and thicker, even bigger!

"Holy fuck..." Brex mumbled, already stroking his cock as he watched his trainer explode in such monstrous proportions, all while grabbing much bigger weights to do some curls to. Muscles still growing bigger and bigger for every curl, outsizing houses until the weights felt incredibly light, and so Moyan grabbed another set, until he outgrew them still. On and on this goes, until every curl he had to change weights, his muscles and overall size augmenting faster and faster; biceps the size of literal buildings, pecs bigger than a parking lot, his back was like a collection of hills, mountains and deep gorges, a true landmark. His legs were thicker than sequoias, even just his calves were thicker than houses and yet the dragon had kept on growing, reaching beyond what was possible.

"Ah, this is the life!" Moyan mused, unaware of his immense rate of growth as he marched towards the mega-macro shelves to use the dumbbells there, weighing more than a 100 tons, and easily curling them, his size shunting higher and higher. Brex can't even believe his eyes, there was just...so much of his trainer now, such massive muscles and imposing frame...

And those cocks, Brex can't forget the man's growing tools. Two ridiculously large hemipenes the size of buses despite being flaccid, balls the size of swimming pools, swinging around with reckless abandon as Moyan kept on growing, already 7000 feet tall and still growing. 8000...9000...10000!

"Holy fuck..." Brex moaned, his leg tapping the floor as Moyan's growth finally, finally ended. Moyan, none the wiser, shouted before letting go of those weights and posed in front of the mirror, massive hyper-muscular arms against his mountainous pecs, his entire 12000 foot tall frame practically bulging with so much obscene muscle weighing hundred thousands of tons easily.

"Yeah, that's what I'm talking about!" Moyan shouted, deftly raising his arms for a double biceps pose and smirked when his massive biceps passed by his closed fists, laughing as if he owned the place. "Not bad for a warm-up, eh kid?"

After finally posing, resting his arms against his thousands feet wide torso, he looked down, way down to his miniscule client at the bench for the tiny normals and smirked. "See that, kiddo? If you want to be as big as me, then get to work!" He encouraged, flexing his arm one more time and even kissing the peak, tasting the strength under his scales.

That, however, had the opposite effect to the brown otter. Brex was ultimately hornier than normal, practically salivating, his boxers stained with pre. He couldn't take it anymore. He wanted...he needed to worship him, worship those muscles bigger than entire city blocks, worship his titanic trainer to the fullest.

He couldn't help it! Brex, fueled by his intense arousal, ran towards the titan, his exercise all but forgotten. The otter got to work worshiping what he could, mumbling about his new size and how he wanted more.

Moyan merely sighed. "Well, guess that ends our workouts." He mumbled lightheartedly, too used to this to even bother stopping him. He moved towards a much open area, leaning down on the wall before plucking the otter by the tail. He could see, even with how immense their size difference is, how needy the otter is and so Moyan gave him what he wanted by placing him somewhere on his magnificent torso, just below his mountain-like pecs. "Enjoy, you horny otter!"

And Brex did, he really did. The otter started licking the ground he was walking in, smooth scales hiding so much might underneath as he climbed higher, his goal was to reach and worship the massive pecs looming over him and the dragon's midsection.

Brex continued to climb, to worship the newly-grown mega-macro, crawling around and feeling more and more of his trainer's muscles. He hadn't even realized his body was heating up, muscles bulging slightly against his clothes as Moyan gloated at the tiny otter.

"Want more, you horny otter?" Moyan rumbled as he flexed his arm, really flexing it as the peak of his biceps reached farther beyond his fist, licking his own mass in a show of self-love. "You gotta keep your energy or else you'll miss worshiping these!" Moyan laughed, making his biceps jump higher. The otter could only try hugging what he could with his puny body, watching the absolute monster-sized muscles around him heave for every breath, the underside of those pecs was like a massive cliff and he immediately tried to run. To feel the absolute mountain of muscle, and worship them until he passed out. The otter was about to stand up and run...

Except the sounds of ripping fabric stopped him. Brex looked down and was shocked when he saw HIS body growing, his pumped-up muscles bulging for every breath, giving him more and more size and heft.

"What the..." Brex mumbled before moaning in pure ecstasy as he shot up two feet taller and hundred pounds heavier, his clothes ripping out, showing off his nude form to the world, his larger cock harder than before. The brown otter could see his pelt stretched for every gained inch added into his body, and he can't help but enjoy it all, his cock spurting more pre than it should.

"Oi, what are you doing there, kid?"

Brex turned back to the dragon and his arousal increased tenfold when he caught sight of the black dragon once more, especially when the ground beneath him rumbled as the dragon grew once more. Even with his limited view being blocked by those cliff-like pecs, he could tell Moyan had his arms raised and each strand of muscles Brex could see continued to thicken with more and more strength, more power being infused as Moyan grew another thousand feet tall.

"Can't see through these pecs of mine, but I know you're slacking there." Moyan rumbled, unaware that he was growing beyond what was possible, his rate of growth practically unheard of as his mountainous pecs bulged bigger and thicker, squeezing his two mountain-sized pecs with a flex. "Now come on! You already know I'm too big for you tinies so get going!"

Brex's mind was overloaded with so much lust staring at the wall before running towards the massive landmarks in front of him. He knew why Moyan was growing, he literally had the phone set to auto-mode when idle. He did NOT, however, know why he himself was growing, but he didn't care anymore. Just the thought of his growth alongside Moyan's to be endless, him reaching Moyan's height while the dragon was even titanic...

"Shit..." Brex moaned, rubbing his cock against the wall of muscle in front of him, already three feet taller and hundred pounds heavier than his old size, but was still nothing against his trainer, still growing bigger and bigger, reaching heights and sizes many times as his. So...much...bigger...

"AH! FUCK!" Brex finally hit his orgasm, blasting the wall with cum until it was painted with his own hot seed. The otter breathed hard, paws against his massive pecs as the massive, growing dragon, already 20000 feet tall and more, chuckled.

"Finally done, there, kiddo?' Moyan shouted, his head way above the tired, orgasming otter. "I told you, you need to keep working out to keep up!"

The dragon laughed, and Brex couldn't help but chuckle alongside him, the irony lost on his trainer as both trainer and client grew, and grew, and grew some more. The otter had already passed a few tons, close to 100 feet tall. He wondered, will this actually end? Or better yet, will he be able to catch up to his trainer?

Brex scoffed. Honestly, he rather not. Means there's more Moyan to worship...

...after this short breather. Shit, Moyan's right, he really should have focused on his workouts more...

***

Back at the bench, as suspected, the app on Brex's phone continued, playing in auto-mode as the levels continued to increase, already a few levels higher. But there was another device just beside it; a tablet playing the same app, also in auto-mode. This time, though, with a pixelized version of a familiar brown otter growing like its real-life counterpart.

Kyoju chuckled, eyeing the devices beside him before turning his attention to the growing duo. The rumors were incredibly true, apparently. It was a good thing he made sure to delay auto-mode considering he set it to 'aware growth' earlier, just after he took Brex's picture.

"He's really enjoying it..." Kyoju mumbled, having to really focus to see the tiny brown otter continuing to grow and worship the titanic, still-growing Moyan; said dragon passed by the 25000 feet mark, the otter trying and failing to catch up with his 150 feet height.

With another look at the devices harmlessly playing by itself, the bull chuckled. "As much as I enjoy this sight, I have work to do." The massive bull said to no one in particular, standing up and dusting off his lab coat that was tight on his shoulders and back. He took one last glance at the growing duo and waved. "Catch you two on the news."

Kyoju chuckled, already having plans with the app as he let the growing duo be, growing and growing still...