Summertime Muscles, Part Two

Story by Joshiah on SoFurry

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#110 of Transformation Stories

First: https://www.sofurry.com/view/1601740

After a date goes better than he could have hoped, Rock is sure that he's making strides with Sandra...but in this second part of the ongoing series, she ends up taking the reins from her much larger partner and guiding him through an experience that they'll never forget.

Meeting up for a dinner date and heading back to Sandra's hotel room, Rock can't help but feel the anxiety of his transformation: his body could turn back at any time, and Sandra would see him for who he really was. She's so enamored with his personality that she takes the lead and works him out of his clothes, but as they start making love, something unusual happens...and suddenly, Rock isn't dwarfing Sandra, the way he had at the start!

Her muscles and bodice continue to grow, but she puts a halt to everything until he explains himself; turns out those steroids had some unexpected side effects!

-

Commissions are open! https://docs.google.com/document/d/1M4k7uyTIRESrkmEhcuQPtznK7qDFrDH358Vk9-bYrGY/edit?usp=sharing We're a little over halfway through the word block.

If you enjoy my transformation themed work, check out the auctions for "Spare Some Change Two," the second in our transformation themed anthology series! https://www.furaffinity.net/journal/9551915 https://www.sofurry.com/view/1603123

If you want to support my work, please check out any of my exclusive donation sites, where there are all kinds of extra goodies: https://www.patreon.com/Joshiah https://subscribestar.adult/joshiahswrittenworks https://ko-fi.com/joshiah

As always, read, comment and enjoy!


Rock wasn't sure just how long the formula would last, and he wished that he would have asked for that information before he took it, but in the moment, he was starting to learn what it meant to just go with the flow and enjoy a good thing while it lasted.

The next morning, when he awoke, he was still sporting the rippling muscles that left him as a tour de force on the beach, and when he and Sandra met up for their date at the boardwalk that afternoon, his worries completely faded away the moment that he saw her.

In the back of his mind, he knew it was sappy, and even unreasonable that he was giving her appearance so much control over his mood already...but he'd heard that was the case for summer romances from so many people that he didn't bother worrying about that , either. He just smiled as she approached, and tried to keep his tail from flickering into other beachgoers as she tried to wrap her arms around his impossibly huge frame.

"Well, you're already off to a better start than the last guy," Sandra admitted. She had to stand up all the way on the tips of her toes to do it, but she found that effort worthwhile as she pressed a kiss to his cheek. "In fact, you're the first guy to be early for a date since I started college...I guess chivalry isn't dead after all!"

"Don't butter me up too much," Rock warned her. His ears actually folded back slightly at the kiss, and Sandra smiled inwardly, finding it endearing that such a large and powerful creature could still be bashful at something so innocent. "You don't want me to get sloppy and mess the whole thing up, do you?"

"If you can get through dinner without making a total ass of yourself, it'll be the best date I've had in a year," she admitted. "Not to say that the bar is too low for you, but...y'know, given your height, you could probably just step over it at this point."

She watched closely as Rock chuckled at her joke, as if she was judging how genuine his reaction to her humor was. "I'd rather raise it, to be honest," he told her. "And if I were lucky enough to get another date with you, raise it a little higher still."

"Just be careful that you don't put it out of my reach," she teased. "I'd hate for you to treat me to such a good time if I wasn't able to return the favor."

Rock blew the comment off. "There's no doubt in my mind that you can treat me to a very good time if you w...w-want to; I'm sorry, that...t-that came off totally wrong at the end, there!"

"Relax, big guy. I know what you were trying to say," Sandra assured him. "I'm not that stuck up...I know how to have a little fun, and that's exactly what I'm here to do with you."

It was hard for Rock to believe that someone could be so comfortable around him in his new body, especially when he was still getting used to it...but there was already a deeper connection to their interactions than what they were showing on the surface.

Sandra was into the man behind the muscle, and Rock, for his part, could only hope that she'd still find him interesting if those same muscles ever deflated; his only fear was not knowing how long he had to take advantage of them.

If it all ended right now, at least I would have gotten to know her a little, he thought. I just hope I can make it through one date before everything shrinks back down!

**

Rock managed to only knock a single glass over when he reached for it, making for a late lunch and early dinner that went over better than he ever could have hoped. He never set the bar high enough for himself before, but with the new body and the confidence that came along with it, he actually wanted to shame himself for making a faux pas like spilling a glass of water.

In the midst of summer, the spill was dry in a matter of minutes, cooking right into the concrete of the restaurant patio.

"Is that really all you're gonna eat, Rock?"

"Just giving my stomach some time to think about it," he said, thinking that a half-truth was better than an outright lie. "Besides, I've gotta watch my figure, don't I?"

Sandra rolled her eyes. "That's not how muscles work, dude. You and I both know that you need to eat more than you did if you wanna keep that kind of mass on your bones."

In her genuine athleticism, Sandra had picked up plenty of knowledge about how best to build a certain kind of body. She worked hard to keep herself lean and toned, but she could only imagine the kind of training regimen that Rock underwent to get to the level of strength he'd achieved.

He still worried how she might judge him if she knew the truth, but that concern was fading further and further into the back of his mind as he leaned over the table, trying not to look as smitten with Sandra as he really was.

"If you're gonna put me on point like that, well...you got me," Rock admitted. "I didn't wanna look like a pig in front of you, I guess."

"I cleaned my plate, didn't I?"

Rock glanced across the table: he'd been too busy smiling at Sandra and chatting with her to really pay attention to how much of her food she'd eaten. "...So you did."

"And there's no reason you shouldn't, unless you're really not that hungry."

"I did order a lot of food," Rock pointed out. "I guess I could finish this now, but I was gonna take some of it home for leftovers. I'm...n-not the greatest cook, if I'm being honest."

"I'd prefer honest," Sandra told him, though she softened her words with a playful wink. "Knowing how many calories it takes every day to maintain that kind of physique, maybe I could give you a few pointers in the kitchen? If you're gonna have five squares a day, you might as well eat something with a little flavor."

Rock didn't even consider that they'd be in the kitchen together. He was flustered merely by the idea of her being in his house in the first place, but she could already see that he was a little put-off by the concept.

"Hey..." she continued, offering a softer smile. "You seem like a really nice guy and all, and I don't wanna push you too far, too fast. If you're not ready for me to come over, don't worry about it; this is our first date, after all."

Her paw had been drifting closer to the center of the table the entire time, and Rock didn't notice it until he reached for his glass...only to feel the warmth of her digits in his own as he did.

"Sorry, I...I'm just really shy," Rock confessed. In his old body, he might have never found those words, but in his current state, he was just able to find them and manage a nervous smile throughout. "The idea of making a meal in the kitchen with you is...a lot of fun, honestly. You just seem like a really fun person, Sandra."

"Nothing wrong with being shy," she assured him. "I guess I'm just a little more direct than that, but I'm really flattered that you think I'm fun. Honestly, I was worried I might have been boring you a little bit!"

Rock watched as her ears folded back slightly, the first sign that she was bashful at his compliment. He hadn't noticed the other subtleties, but the casual stroke of her locks as she teased her fingers through them or the way she could only hold his stare for a few moments were ever present; the wolf was just starting to put all of the pieces together.

"I don't think you could bore me if you tried," Rock said. His smile curled into a genuine expression, past the nerves that forced his lips to move. "Not that you aren't welcome to try, but...no way you'll ever pull it off."

Giggling at the suggestion and curling all of her digits around just one of his thick, heavy fingers, she put her gaze upon him again and curled her lips in a way that he'd only ever seen a few times before. Sweet as the expression was, there was something else behind it that trended toward an amorous flair.

"I'd hate to waste your time trying to be boring, anyway," she replied. "But I'd be happy to keep showing you how much fun I can be, if...if you're really having a good time, that is."

It was slight, but Rock couldn't miss the very soft lidding of her eyes as she kept her gaze upon him. Much as his new body added to his confidence, it seemed to make him more perceptive of others, and in the case of Sandra, he was giving her the time and attention that she deserved, rather than fighting with his own insecurities.

"I can't remember the last time I had such a good time," Rock finally did reply. His paw closed around Sandra's and held it in a surprisingly delicate and comforting warmth as the check arrived; they both summarily ignored it. "Other than last night, of course."

The waiter took immediate notice of what was going on and stepped back quietly as Sandra's ears wilted. "You promise that I wasn't moving too fast for you, then? I know I was getting kinda...forward."

"I just wish I'd been gutsy enough to let you keep going," Rock claimed. "You weren't moving too fast for me at all, j-just...still kinda shy, I guess."

"It's so rare that a guy your size is this shy, but...J don't mind it. I've just gotta cut through all the layers first, and there's a lot of layers, if your body is any indication."

Rock had already picked up what she was getting after, but she kept the ball in his court, allowing him the final say of whether or not they were going to keep the date going after the restaurant. Given the delicate tickle of her claws against the inside of his palm and the tender nip of her fangs against her own lips, he began to wonder if he was looking too far into her expressions, or if she was as antsy as she appeared.

If they weren't in public and broad daylight, she would have been able to give him a much more direct inkling of what she was after.

"There is a lot of me to go around," Rock agreed. He looked down at his arms as if he wasn't used to their mass, and truthfully, he wasn't...but the gesture came across as goofy and playful, prompting another giggle from Sandra. "But that doesn't mean you're doing anything wrong, honestly."

"Do I just have to be patient with you, then?"

Regardless of his muscles, her stare was stronger, and in the depths of her eyes, he could see the order to strip every fabric of clothing from his body. He could feel the intensity that she wanted to share with him in a much more intimate setting.

"Patient is good," Rock paused and gave her paw another squeeze. "But with a guy like me...maybe pushy is better?"

After being so bashful throughout their conversation, Sandra couldn't help cocking a brow at Rock's sudden willingness. "You sure you know what you're getting yourself into, big guy?"

"I knew last night, too...and if I was any better with my words, it sounds like I might have really gotten into it...."

" Oh! W-well then," Sandra's tail gave a flicker of approval at the way that Rock evolved in the middle of their conversation. They were guiding each other to the right answers as they worked, but as they did, the vixen could see Rock was getting ready to grasp at straws if she kept him talking any longer. "Guess I might have underestimated you a little bit, hm?"

"Not at all," Rock admitted. His free paw lifted to the back of his skull and ruffled his own fur nervously as he realized the gravity of what he'd just said; despite his timid nature, he was always afraid of being too forward, and the problems that might cause. "To be honest, I think you're know exactly what you're getting with me, at this point...I just hope I don't wear out your patience getting it, if that's really what you want."

Sandra gave a very brief shake of the head. "Don't worry, Rock. I won't let you wear out my patience," she assured him, but her words were only so comforting when a grin came to her lips once more. "I've got a couple of pieces of furniture that might be in the mood to get worn out, though."

She'd given him the chance to back out and change the topic, but Rock stayed right with her, until she dropped the hammer on him. Fittingly, his jaw dropped with it, and Sandra narrowed her eyes on the much larger wolf, waiting for a response.

The pulse of his paw as it clenched tighter around her own was enough of an answer for her; they almost forgot to pay the check before they rushed away from the restaurant.

**

The whirlwind of a quick, summer romance was always painted so eloquently in films and books that people who actually had the fortune of experiencing them were always in for a rude awakening, but the chemistry that was blooming between Rock and Sandra helped them to navigate any truly choppy waters.

"Spent so much time lifting weights that you forgot how to unhook a bra?" Sandra teased. She was pressed right up into the chest of the man she'd taken back to her hotel room, but that same weight was pushing her against the door; they didn't make it any further into the entryway before her sundress was tugged up from her body and tossed aside. "Or is this the first time you ever have?"

If she wasn't appealing to his libido so much, that comment would have been enough to derail Rock completely, but he did his best to ignore it as he kept his lips moving against her collarbone. He didn't know if it was instinct or blind luck that kept him moving the right direction on her body, and as he kissed down the side of her neck, she let out a quiet series of whimpers that encouraged him to push on.

It was the new thickness of his overpowered digits that made for such a difficult time pulling the tiny hooks of her brassier apart; tearing the garment would have been easier, but for all of her aggression, Rock didn't imagine Sandra would have appreciated that.

"Just been a little while," he murmured into her shoulder. The gruff vibrations from his voice left her giggling, but it all faded into a sigh of relief when his claw finally hooked into final clasp and freed her chest from the fabric confines. "Sorry to have kept you waiting..."

Rolling her shoulders and arms forward, Sandra pushed her bra down from her body and leaned her torso back, letting it fall to the floor. "You made me wait one whole night to get into your pants...how very rude of you!"

Her tone was riddled with sarcasm, and in turn, Rock could only smile nervously as he stood upright to see what she'd revealed. Her breasts sat comfortably against her chest, and feeling his stare upon them, she reached up and tapped a single claw under his chin.

"Speaking of pants, you've got some nerve standing there and staring when I'm down to my panties...and you're still mostly dressed."

She was a simply gorgeous creature, and in awe of her, Rock could have stood and stared at her mostly naked form the whole afternoon without skipping a beat. Her aggressive drive kept him on point, but as soft and tender as they appeared, his paws had a little more work to do on himself, first, before he'd get to sample her body any further.

"Fair's fair, I suppose," he agreed. The nerves were still just slightly present in his voice, but Sandra's lips were kept in a comforting smile as Rock struggled out of his overly tight shirt, still adjusting to the way that the fabric tried to grab onto every ridge of his musculature as he stripped. "Though it's hardly fair that you made me do all the work on your end."

"Complaining about getting to feel me up already?" Sandra teased. She stepped right into the gap she'd created and gripped the inside of his shorts with force, pulling him closer by the waistline and gripping the buckle of his belt with her other paw. "And here I thought you'd be grateful for it..."

The fact that she went right for the belt wasn't lost on Rock, who tossed his own shirt aside after what seemed like a greater than necessary effort. He was bashful all over again, and Sandra was only making it worse by taking such a strong lead.

"Never said I wasn't, y'know."

"And I hope you know that I'm just messing with you," she admitted. A quick flick of the digits left his belt unbuckled, and when Sandra released the shorts, they fell right down; Rock hadn't figured out what size clothes to buy for his new body, and just like that, the vixen was left holding nothing more than a belt. "Speaking of messing with you, though...just how serious do you think I'd be if I threatened to give you a quick lash across the ass for being ungrateful?"

Though she was still grinning, her expression was full of fangs. She looked the part of a deadly mistress, and Rock was torn between the obvious arousal it granted him, and the fear that she might actually go through with such an act.

"Serious enough t-that I should probably be worried," he replied, wondering if the fate of his body hinged on that answer.

"Hehe...I just had to ask," she said. "There's a trope about big guys that enjoy getting tied down and taken in the bedroom, but with you? I'm pretty sure I could blow a kiss at you and knock you flat on your back...but _maybe..._I'd rather be flat on mine."

Rock was following the order of her claw long after it left his chin, keeping his stare up above Sandra's exposed bodice. That caused him to miss the subtle, delicate moisture that stained the crotch of her panties, and the way that she was ogling his growing bulge.

With the side of the coiled belt, she tickled the outline of his cock and made sure to steal his gaze before she continued onward. "Last chance to tell me that I'm moving too fast, big guy," she told him. "Not that I wouldn't stop if you asked me to, but...once I get started, it's pretty hard to keep me from taking what I want."

Even the subtle tickle of leather against his tip left Rock nervous about lasting for her, but his length was massive, and looked even more so against her slender frame. It might have been the wrong reason for him to feel so confident about bedding her, but as much as she was enamored with the rest of him, Sandra clearly had an eye for the hidden details.

"I already stopped you from taking what you w-wanted once before," Rock stammered, feeling her thumb dip into his boxers. She tugged them right down and watched his length spring up with widened, eager eyes. "I wouldn't dare to keep a lady waiting two days in a row..."

"...Good answer," she said, having to snap herself out of staring when she'd warned him against the same. "So good, in fact, that I'll let you be on top first."

It was hard enough for Rock to suspend his disbelief long enough for a single romp with Sandra, but the gaps his mind couldn't fill in were taken with touch, as Sandra gave the center of his chest a delicate shove.

At his size, he easily could have stood against it, but seeing her grin, he dramatically fell to the bed and chuckled, happy to play along with her as she climbed in after him.

"I just hope you know what you're getting into," Rock teased her right back as Sandra curled her thumbs into her panties and stepped out of them, all while climbing into the bed in a fell swoop. Her gait was sensual grace as she curled up into a ball against the plentiful pillows of a hotel bed, hugging her tail into her chest and forcing Rock to give her one final touch before she'd open herself to him. "I dunno if I got my fill at the restaurant, and you look good enough to eat..."

"I'm more worried about what's getting into me," she kept up with his flirtatious attempts, and only when his paw came to rest against the inside of her knee did she finally part her thighs. Tiny webs of arousal dripped from her folds as she eased her legs further and further apart, until she was spread wide for him; she couldn't help giggling at how befuddled the sight left him. "And sweet as you are to offer that, I think you can see I don't need any extra work..."

Rock never even thought about the double entendre that was hidden in his words. He never believed that he could see such arousal with only the mildest of touches, and he never imagined that such a sight would be spread before him by a vixen in the first place.

He was nearly drooling as he crawled forward on uneasy knees. His massive figure loomed over Sandra, but the confidence never faded from her gaze, even as she watched the tip of his delightfully canine length approach her tender petals.

She sucked in a quiet gasp as his length begged for penetration, and despite her bravado, she found his size to be just a bit too much to handle.

"W-work it in n-nice and slow," she whispered, sucking in a gasp as she did. "It's...e-even bigger than it looks, Rock!"

She was grateful that he was a wolf: the tapered shape of his length made for an easier penetration at the start, and with a subtle wiggle of her hips, she was able to guide the head inside...but even that was a struggle for the slender vixen. Slow inches pushed behind that as Rock watched breathlessly from above, moving as carefully as he could in his new, massive body.

Her body clenched at him with desperation, and she tried to listen to the warnings it offered her as inch after inch pushed up into her body, until she could see the subtle bulge of his length through the flesh of her pubic mound.

What the hell was I thinking? He's fucking huge...feels so good, but I swear, he's gonna tear me in half!

Sandra was too bold to back down from a challenge at that point, but there was no use hurting herself when her entire body was trembling with bliss. She felt Rock leaning down and caught his approaching form with a paw, holding onto his shoulder.

"Easy... very easy," she cautioned him, sinking her claws into his flesh as she searched for any kind of purchase. "Sorry for underestimating you..."

At the heart of the wolf was a truly caring person, and enhanced muscles didn't change that about him; he did his best to smile through the ecstasy as he watched the vixen struggle. "Think nothing of it, Sandra...t-this...feels unbelievable," he admitted. "I don't wanna stop, but if you need me to, I..._fuck..._I could..."

Though her pawtips were clutching his shoulder tight, Sandra didn't know if she could take another inch without terrible risk. She was riding a high even beyond the one she anticipated, and watching the bulge just below her tummy was a fascinating thing...but in her current state, the most they'd ever be able to mange would be a slow, gentle romp; happy as she would be with that, she didn't know if Rock was so understanding.

If she just asked, she'd find that he was, but her lungs were struggling to draw air as her entire body clenched around his length.

"Maybe pull b-back just a little," she muttered, trying not to look shy about her capacity. "It's _heavenly,_Rock, but...how the hell do you even walk with that thing between your legs?"

"Practice," he answered, glancing aside in his own bashful way. "Sorry if it's-

"Don't apologize," she cut him off. She watched a spritz of precum ease from his tip as it slowly pulled out of her, and gazing down the best that she could, she noticed how stretched her entrance was after just a few delicate pumps. "You're perfect just the way you are, big guy...I just need to take it really slow."

Rock let out a quiet gasp as the very end of her passage squeezed at his tip, right as it eased out of her...but it took all of his effort not to drive his hips back in. "Slow as y-you need," he agreed. "I'm just still shocked this is happening..."

Though it was mingled with effort, Sandra smiled warmly at him and stroked a paw over his cheek. "Honestly? Me too," she confessed. "But I think maybe I did pull something...s-shit..."

Her paws both fell down to her stomach as she held herself; there was immediately relief that the pain wasn't coming from her womanhood, but a tight, powerful clench that forced her abdominal muscles to rise left Sandra curling up into a ball again. She tried to hug herself for comfort, but even as she did, her arms went stiff and pulsed with the same pain, until tears began welling up in the corners of her eyes.

"Sandra, you...a-are you all right?"

I finally find a nice guy to fuck, and my body starts convulsing. Cool, she thought. Behind gritted teeth, she tried to smile up at Rock, but there was no hiding the agony she suddenly felt...and her body revealed the source of it, as the slender physique that she was so proud of began to bulk up. Thicker, heavier muscles surged through her arms and pushed her shoulders up until she completely blanketed her own torso, and as she watched, she became breathless, panting to accommodate her sudden need for air.

Instinctively, she pushed Rock away. He leaned back and watched with renewed nerves as her long, slender legs filled out, and then went far past that point, overflowing with muscle. Skin and fur grew just fast enough to prevent a tragic accident in her physique, but as it did, Rock became all too aware of what was happening to her.

Breasts that fit so perfectly on her figure were suddenly small as her arms opened up again, but they grew along with the rest of her form as unnatural power surged through her flesh. "Not to s-sound like a bitch, but...d-do I look all right, Rock?!" she demanded an answer of him, and as she did, her ears wilted to the new tone her voice took: she didn't sound anything like herself anymore.

Precum still oozed from the tip of Rock's length as he knelt back and watched, and seeing it puddle in the sheets, Rock accepted his responsibility in the mess; he should have listened to more of the side effects before he went around interacting with other people.

"You're gonna be all right," he told her. "I understand if it's hard to believe that right now, but I promise you will be...just do your best to relax."

Muscles and tendons twitched of their own accord as Sandra's body continued to adjust to itself. Her jaw opened as if she wanted to speak, but it was just the side of her mandible clenching as her shape continued to shift away from the slender vixen that she was.

Rock feared that no words of comfort he offered would be enough for Sandra, remembering what terrible pain he was in the day before...but he knew that her change was coming to an end, as her arms fell flat against the bed and her chest heaved with internal effort.

"The fact that you're not m-more panicked...t-tells me that I am about to be fucking furious with you, Rock..."

He gulped quietly, but offered no further reply.

"I told you honesty was the b-best policy," she reminded him, "And since I like you...I'm gonna give you a chance to explain what the hell is going on before I decide to kick you out of my room or not."

Though she wasn't quite so riddled with muscle as Rock, she would have already been the most powerful woman at Muscle Beach, if she decided to give working out there a try. Her fur was still growing back in where her flesh stretched ahead of it, but the vixen retained her species...even if her body was borderline unrecognizable.

"Look, I...I'm guessing you can tell that I have some confidence issues."

She cocked a brow. "I wouldn't call shy the same as that, but go on."

"There's, well...there's a good reason why I was such a klutz yesterday," Rock said. He paused just long enough to take in a heavy sigh, but on the exhale, he feared that his chances with Sandra would be completely dashed. "I got my hands on a bottle of some experimental muscle growth formula, and...well, the guy I got it from said there might be side effects, but I never imagined something like this would happen!"

Sandra took his whole explanation word for word, never taking her eyes off of his own. He'd occasionally try to dart them away, but seeing how the vixen watched him, his guilt kept him looking right ahead, until he had nothing more to offer.

"You know, Rock...there's more important things to impressing a girl than having big muscles."

"Would you still have talked to me yesterday if I didn't have them?"

"Yes."

He tried not to roll his eyes. "You sure about that?"

"Damn sure," she said, glaring. "The real question is whether you would have stayed and hung out with us still, or if you would have given me the ball and left."

"I...I'm not sure."

"See? That's what really matters, Rock...yes, your body is attractive, but...I decided to keep hanging out with you because you were a fun, nice guy," Sandra told him. "Even if you didn't have the same body, if I was lucky enough to get to the core of you and meet the man beneath, I'd still be attracted to you...and I'd still be laying under you in this bed, wishing we could just get back to business."

Rock was stunned. "You can't really mean that, can you?"

"How many girls have ever lied to you to get into bed with you, Rock?"

"Uhm...none...?"

"Right. And this one isn't, either," Sandra confirmed. "I'm laying here because I like you. I'm attracted to you, and I trust you enough to make good on the things I feel for you...in fact..."

Her longer legs wrapped around his lower back and easily forced him in, pushing his weight back on top of her; she'd adjusted to the new muscles much quicker than he had. "I'd rather we not waste the opportunity to go at it with these new bodies, as long as we still have them."

Rock scarcely had a chance to angle his hips the right way before Sandra pulled all the way in; her larger form was able to handle the first few inches of his cock with ease, and with a second thrust, Rock pushed right past the point of what Sandra could handle with her slimmer form.

"Now t-that is what I wanted to feel..." she grinned and clenched her inner walls on his cock as he continued to push, as she put her new, larger muscles to the test. "But I want you to know something, big guy..."

Wincing his eyes shut and trembling all the way to his toes, Rock was suddenly fighting for control of their romp, despite having the top position. "Y-yeah, Sandra?"

"If you ever hide something from me again, you're going to get so much more than a belt across the ass," she warned him. "So unless that's what you're into, you'd damn well better be upfront with me about everything...and you can start by telling me when you're ready to cum."

It wasn't her first time feeling the powerful throb of a male inside of her, but it was certainly the strongest one she'd ever known, and it left Sandra's toes curling into the long, fluffy fur at the base of her lover's back as she clenched upon him in return. Without the fear or risk of injury anymore, Rock was able to put his new, thick muscles to the test and pound Sandra into the mattress with his hips, but with her body nearly equaling his own, she bucked right back at him with such force, they threatened to damage the mattress frame in the process.

Their larger bodies and intense muscles were more than the hotel room was ever designed to handle.

"Think you're g-gonna get me that easily?" Rock tried to sound confident against her demands, but her earlier efforts to take his oversized length pushed him right up to the edge of his release. What shocked him was that her new, able form was so capable that there was something greater than ordinary grip in her movements, and with each buck of her backside into his hips, she was wearing down what little resistance he had left.

He didn't want to feel any shame over it, but it was her comforting gaze that finally kept him from worrying about giving in so easily.

"If you're not used to using that body yet, then...trust me, Rock...y-you're not gonna be up to my level," she boasted. "Lucky for you, I'm planning on extending my vacation by a couple days...and I'll g-get you up to speed very fast."

She didn't sound as calm and collected as she thought, and where Rock could hear her struggling not to climax, he was already going over that edge and whimpering into her shoulder, wishing he could go just a few minutes longer than that.

"S-Sounds great," he admitted, his voice strained as he went still inside of her. "Fuck, I... Sandra, I'm gonna -

"Not inside, you're not!" she stuck her tongue out and reached down, grabbing the base of his shaft and pulling it out of her passage just seconds before a powerful throb bounced his length off of her stomach. She looked down and giggled as long, messy strands of cum poured across her tummy and drizzled between her tits, and with her inner muscles still clenching, she felt a similar pulse from above. "Not until I see you for who you really are..."

There was no guarantee how long the serum they'd taken would last, but Sandra wanted to know the man responsible for taking it in the first place. In the afterglow of a powerful release, he'd known comfort every time, but never to the extent that Sandra offered it.

**

Lots of people would claim that the perfect couple didn't exist, but Rock and Sandra were giving that title their best shot, as they marched their way into the gates of Muscle Beach with a confident gait.

Heads were turning as they approached, and save for a groan of disapproval from Jesse, the crowd was voicing their thorough pleasure with the statuesque creatures that were joining the fray.

"You sure you wanna do this? The stuff you're on might wear off before we even have a chance to grab a bench," Sandra reminded him.

Rock nodded firmly. "It might," he agreed, "But I've always wanted to earn a body like this, and now that I've had it, even for a few days...I think I'm ready to take that first step."

Having held an impressive physique in her own right, Sandra knew what a long road it could be for someone to achieve true physical fitness, and the benefits that came along with it.

She was happy to see him through whatever changes came for his body...and compete with him every step of the way.