Beastly gains

by Kibble the Satyr

Tyler Russell is in a funk. He’s 25, unhappy with his body, and stuck living with his dad until he can make enough money to move out. Uncertain about his future, he happens to make a friend at the gym that might just hold the answers he's been looking for....

Is he watching me?

Glancing back at the workout station as nonchalantly as he could, Tyler tried to look without looking, just a quick dart of his eyes towards the bench press and—

Oh man, he’s totally looking at me.

With an uneasy breath, Tyler looked down and bit lightly into his lip while his legs kept up with the steady pace of the treadmill he’d been using for the past fifteen minutes.

The gym was quiet for the most part, which was fine with him. It was a thirty-minute drive into the city from where he was stuck living with his dad, but the cheaper rates, new equipment, and friendly staff made it well worth the mileage it put on his now ancient ‘06 Corolla.

Taking a deep breath, Tyler pressed on through his walking session. The lanky 25-year-old might not have had the body he wanted, but he wasn’t a slouch by any means. While he idolized pro-wrestlers and bodybuilders’ physiques, he had to settle with what genetics had given to him: a lanky body that looked like the wind would knock it over by accident, coupled with an almost elven-like appearance that had gotten him carded twice in the past week.

But here he was, trying yet again to make a change. To improve himself. To shake off the shift at his dead-end job at the downtown movie theater. To make some gains somewhere in his life.

It wasn’t that he simply wanted to be bigger or to build muscle. He wanted to be like those men whose bodies he idolized. He wanted to wrestle and feel himself flex his strength against someone else, to grapple with another man and overpower them through sheer might.

That was the goal, anyway. He certainly wasn’t anywhere close to making it happen.

And yet he kept walking, letting his body cool down a bit from his struggle with the various machines in the gym over the past hour.

... Is he really still looking at me? What’s with this dude?

Tyler glanced up again, this time staring openly at the man across the gym.

He’d seen the man before. He always tended to come in around the same time Tyler did, and without fail, worked out relatively close by. Tyler knew gym protocol wasn’t always super clear, and the man hadn’t once spoken to him or bothered him so he’d never had a reason to be wary of anything. But tonight, he could feel a pair of eyes on him nearly every time he moved, and it was unnerving as hell.

Finally, his fifteen-minute cooldown on the treadmill was up and the machine slowed down, coming to a complete stop as Tyler breathed a bit heavily. The exertion of the workout was finally catching up to him and his body was a bit shaky as he stepped onto the laminated floor and grabbed his bag.

As he stood up, he flinched, noticing the man that had been staring at him was now standing just a few feet away, leaning on one of the pec decks just across from him.

Up close and with nothing in the way, Tyler took in the man. He was... simply massive, a veritable giant with a hirsute body to match. Somehow he’d never really noticed just how big the man was, and how envious it made him feel. He was easily over 6’8” and built like a tank. His broad chest stretching a very damp tank top to its limit, and a pair of form-fitting gym shorts left very little to the imagination.

Tyler got the distinct sense that the man was trying to show off as much of himself as possible, and he found himself being drawn in by the sight. He wasn’t into guys, or at least, he hadn’t really considered himself to be. But there was something about the man in front of him that made it impossible to look away.

The man grinned over at him and nodded.

“Looks like you got a good one in today, little man.”

His voice was deep and rich, and the air around Tyler suddenly smelled of musk and sweat more than it normally did in the gym.

“Yeah, I... did. Seems like you did too.” Tyler replied.

He stared up at the man, noticing his well-kempt beard and mustache, perfectly groomed and bushy as hell. It somehow managed to stand out from the rest of the man’s body, which was absolutely covered in a thick layer of salt and pepper body hair.

“Sure did!” The man grinned, leaning off of the pec deck and stepping towards Tyler as he crossed his arm, “I’ve seen you in here a bunch. Y’got a lotta drive to keep coming back and pushing through your workout like you do. Not many people can keep up with it.”

Tyler arched an eyebrow, “You’ve been watching me?”

“Just noticin’ you, is all. Hard not to when it’s usually just me, you, and Bobby at the front desk.” He smiled as he nodded his head towards the front entrance and looked back at Tyler.

“Don’t mean to creep you out or anything.”

“No, it’s fine!” Tyler answered hurriedly, giving the man the benefit of the doubt, “I mean, I just get really focused on stuff when I’m here, and I tend not to realize what’s around me. Don’t really have any gym buddies so I’m not used to talking much.”

“Well hey, I got no problem talking if you don’t. Name’s Bill. Bill Hayes.”

The larger man stepped closer and reached out a hand towards Tyler, who hesitated for a moment before grasping it and giving a firm shake. He could feel the corded muscles clench around his smaller hand and he chuckled to himself at the size difference.

“Guess we’re buddies now, eh?” Bill winked at Tyler who nodded with a polite smile despite feeling weirdly hesitant about talking to this stranger.

But... he seemed friendly enough and the fact that he was a regular here at the gym had to count for something. Tyler glanced up at Bill and nodded again, pushing back the hesitation and decided to be a bit more open.

“Tyler Russell. Nice to meet you, Bill. And I gotta say, you’re... you’ve got like my ideal body type. It’s really impressive. H-honestly, I wish I could get my own body anywhere close to yours. How long did it take you to build up to where you are? And what workouts did you focus on? Did you take any supplements? I know genetics have a lot to do with it, but still.”

Bill held his hands up and smiled, “Geez kid, what did I do, open the floodgates? Thought you weren’t a talker?”

Tyler blushed, “Not usually. But like I said, you’re where I wanna be someday, so I’ll take any tips you can give me if you have them.”

“Mmmm.” Bill stroked his mustache with a hand as he looked down and considered Tyler. His eyes trailed up and down rapidly, like he was calculating something in his mind.

“Well, to be honest kid, I used to coach wrestling at one of the high schools ‘round here. Always had a bigger build growing up and once I figured out what worked best for me, I started getting into coaching. It’s why I started this gym, actually. Used to coach and train all sorts of guys around the city. That was... a long time ago, probably close to 20 years by my count. Of course, it helps now that the place basically runs itself too. Nowadays, I just come here to keep healthy, stay strong, and the free showers and eye candy don’t hurt either.”

He winked at Tyler again before he continued, who shifted uneasily in his place at the last comment, but nodded along.

This guy owns the gym? Why did he single me out?

“You say you wanna have a body like mine? Mm... I can give you some tips, sure. I could tell you what might work. But to really get there, I’d have to coach you every day. And I’ve been outta that game for so long, I’m not sure I still got the magic touch.”

Tyler was a bit shocked at how rapidly the conversation had switched from introductions to the potential of being coached and trained by Bill. Normally, he’d be much too cautious and wary of anyone proposing something along those lines for him. He’d always been the outlier, the guy who would rather stay away from the group and be by himself. But maybe... maybe this was the universe trying to tell him that it was time to ask for some help for once in his life.

He looked up at Bill, watching as the older, bigger man waited for an answer.

“I’m... definitely willing to try if you are. I know we just met but I’m honestly kinda desperate for anything. Feels like I’ve been exactly where I have been for years now, and I’m tired of hoping for gains I never seem to reach.”

He took a breath and shrugged.

“I don’t think I could pay you or anything, that’s the problem.”

Bill chuckled and shook his head, “Kid, I’ve seen you around here and know you’ve got what it takes. Just need the right kinda guidance. I’m willin’ to try and give that to you if you want, but know that the changes you’re looking for might come way faster than you realize.”

With a shrug Tyler held out his hand this time, “Hell, I’ve been waiting long enough I think. Any change is a good one in my book, no matter how fast.”

With a hearty laugh, Bill reached down and shook his hand again, wrenching the smaller man’s arm up and down like a see-saw.

“Well all right then. We can start tomorrow—er, well technically tonight, I suppose.”

“Oh.” Tyler said with confusion, “I just finished my workout and I’m pretty tired.”

Bill shook his head, “Nah, I ain’t gonna make you do anything like that. You actually covered most of the basics that I’d normally go over. Follow me.”

He turned and headed towards the locker room entrance on the far side of the room, and Tyler grabbed his bag and followed the hulking mass of muscle and hair in front of him.

The locker room was standard fare for a gym this size, although the addition of a sauna, hot and cold tubs, and plenty of open changing sections was a nice touch. Bill turned left as he entered, followed closely by Tyler as he walked down towards the middle of the line of lockers and unlocked one.

“Phew, sorry but I gotta shower off, kid. Guys my size tend to sweat a lot, as you can see.” He laughed as he peeled off his soaked tank top, revealing a broadly muscled chest and torso covered with even more thick hair. His pecs flexed and bounced slightly as he sat down on a bench and started removing his shoes.

Tyler shifted a bit uncomfortably as he watched the other man disrobe in front of him, casting his gaze anywhere but on the one person he could’ve looked at. He hadn’t noticed it before his Bill was wearing a golden bracelet on his left wrist. It looked rather plain and a bit odd for someone so big to be wearing a piece of jewelry like that but, who was he to judge?

Bill stood up, now clad only in a very damp, almost see-through jockstrap that might as well been invisible for all it did to hide his clearly very girthy length and pendulous balls. Tyler coughed slightly as he stared at Bill’s nearly nude body for a few seconds, unsure why he was having an issue looking away but finding the sight... insanely impressive to behold.

“Ahh, man that feels good. Sorry to keep you waiting but I just had to get all that sweaty fabric off. Here’s what I wanted to give ‘ya.”

Reaching into his locker, Bill pulled out a very large water bottle already filled with sloshing liquid. He held it out to Tyler who took it and looked at it curiously.

“That’s 84 ounces of pure, distilled gains right there.”

Tyler peered through the colored transparent plastic of the bottle and looked at the fluid. It was a bit thicker than water, more viscous and soupy. He lifted the bottle to his nose and uncapped the top, taking a sniff.

Whatever it was, it smelled... strange. Clearly organic and fresh, with a hint of something he couldn’t quite place but seemed very familiar to him.

“What’s in it?”

Bill turned back to his locker as he put his damp clothing into a mesh gym back hanging on one of the hooks.

“It’s my own blend I developed when I was coaching high school. It’s all-natural ingredients and a few special secrets of the trade—but it’s mainly water, combined with some electrolytes, Celtic sea salt, and some choice minerals that will help your muscles recover much faster than they naturally would on their own. I’ve drunk one of those after every workout for the past 45 years. And all my former students will attest to its effectiveness.”

Tyler was impressed to say the least, bringing the bottle to his mouth and chugging down a few gulps without a second thought. He smacked his lips when he pulled the bottle away, noticing Bill staring over at him.

“It’s good, right?”

Nodding slowly, Tyler moved his tongue around his mouth a bit, wetting his lips and getting used to the thicker liquid coating his gums and settling in his stomach. It was incredibly salty, but tasted almost like a blended drink someone might get at a juice bar or something.

“It’s not bad, yeah. This is definitely a lot to drink though.”

Bill smirked, “Gotta drink it all to make it effective, kid. I promise, you’ll start feeling better on your drive home.”

Tyler rolled his eyes at the thought of heading back, “Yeah. I’m sure I’ll feel great going back to sleep at my dad’s house.”

Bill tilted his head slightly in confusion and Tyler realized he’d accidentally brought the mood down a bit.

“Er, I’m sorry. I’m living with my dad and things aren’t... great between us right now. He wants me to move out and I’ve been kinda stuck at my job, not making enough to get out on my own. It’s... I’m sorry, this probably isn’t what you wanna hear.”

“Hey, coaches can be therapists too.” Bill’s warm disposition seemed to radiate out from his massive body, “M’here to build you up as best I can, so don’t hold back on my account. I know we just met and all but you can be as open an’ honest with me as you want to.”

Tyler sighed and smiled genuinely over at the big man in front of him, feeling for once in his life that maybe he’d reached an actual turning point.

“Thanks, Bill. I just... yeah, I gotta head back but thank you again so much for this!” Tyler said as he slung his bag over his shoulder.

“Ain’t gonna get a shower here, kid?” Bill asked as he hooked his thumbs on his jockstrap’s waistband and casually yanked them down, giving Tyler a full on view of his nude body. He leaned up against the lockers, crossing his thick arms over his equally thick chest as he watched Tyler, a playful smirk clearly evident under his beard and mustache.

Tyler’s eyes widened at the sight before him. Bill’s body wasn’t just impressive, it was downright godly. His thick cock hung down at least six inches from a forest of hair that looked almost like fur, and his balls were full in their sack, looking almost like a pair of baseballs between Bill’s thick thighs.

His mouth went dry as he saw Bill’s dick twitch slightly and start to rise, and the larger man gave a soft moan as he reached down and fondled himself.

“Sorry, kid. Haven’t had a chance to exercise this guy at all today. Just one of those things, you know?”

“Y-yeah. For sure. I uh... definitely know what you’re feeling.”

“Hah! I’m sure you do, kid.” Bill chuckled as he stepped forward and placed a hand on Tyler’s shoulder, leaning down slightly.

“Drink up. I’ll see you right back here tomorrow night. 10pm, sharp.”

He winked at Tyler before chuckling again and rubbing his shoulder back and forth before he stood up and turned, walking back towards the line of open showers. His ample backside swayed and bounced with each movement as he did.

Tyler watched in awe as the older man casually walked away, showing off his body in a display of sheer pride. The sudden stirring in his own groin came as a surprise to Tyler who slowly turned, his mind still processing the image of Bill’s naked body as he walked out of the locker room with his gym bag on his shoulder, and the bulky water bottle in his hand.

As he walked towards the front desk, he lifted the bottle slowly to his lips again and drank, this time more gulps than before as he found the taste strangely inviting. Whatever was in the mixture was damn good.

Bobby, the man standing behind the front desk, smiled over at Tyler as he passed. He was somewhere in his mid-thirties if Tyler had to guess, and he was tall and built like a tank, much like Bill had been. Hairy too, now that Tyler got a good look at him up close.

“I see you finally met Coach Hayes! Isn’t he the best?”

“Oh, you, uh, you know him?” Tyler asked politely, though he was still a bit shocked at how bold the older man had been just moments ago.

Bobby nodded excitedly, “Hell yeah! He owns the place, and actually hired me personally. He used to coach most of the guys who come in here throughout the week. Nearly all the staff have had him as a trainer or a coach in some capacity. That was years ago though. Haven’t seen him so interested in anyone like he seems to be with you in... a long time. Must be something special about you.”

“Aha. Yeah, it’s... he’s really nice. Generous too.” Tyler shifted on his feet a bit, eager to get out of the gym and try and clear his head.

“Oh, for sure. For sure, man. Coach is the best.” Bobby said with a big smile as he dropped his phone on the desk and stretched a bit before stopping suddenly, “Oh, and don’t forget this!”

The buff jock reached over and handed Tyler a flyer with the gym’s logo on it and some contact info.

“We’re trying to drum up some promotion for this place. Tell your friends!”

“Uh, yeah. Thanks.” Tyler said as he glanced at the flyer and then around at the gym, seeing not a single person there aside from him and Bobby. “Well, I’ll see you tomorrow I guess.”

“Sounds like a plan! See you, man.”

Tyler nodded and walked past the desk and through the front door towards his car, sipping on the water bottle every few seconds as he made his way across the pavement.

What a weird night. Hope dad doesn’t ask about the water bottle.

Bobby watched him go with a smile that got larger the further he got away, and when Tyler’s car drove off he laughed softly to himself.

Slowly, the jock peeled off his tank top and let his shorts fall to the ground, revealing more of his bulky, hairy body as he walked back towards the locker room. Sniffing, he turned his nose up slightly and moaned at the scent wafting from the entrance.

Slowly, he pulled his rather skimpy jockstrap down and walked naked towards the source of the smell, eager for what he knew he would find.

“You’re back late again. What did we just have a conversation about last night?”

Bradford Russell sat at his kitchen table, partially graded papers strewn about and half a cup of room temperature coffee just off to the side. He watched as Tyler slipped off his shoes and he sighed heavily.

“Tyler. Are you hearing me?”

No answer.

“... You’re really asking for it, Tyler.”

“Dad, I just went to work out. That’s it.” Tyler said tersely, feeling the usual tension of the house settle on his shoulders as he slipped his socks off and shook his head. He slung his backpack over his shoulder and stepped towards the kitchen.

“And it took you two hours to do that?”

“No. They had a—”

Bradford held his hands up, “Just... stop making excuses, Tyler. I don’t give a shit where you were. You’re late. You said you’d be back by 11pm. We discussed this and now here you are, waltzing back into my house like you own the place.”

He settled back in his chair and glared at his son.

“Your mother might’ve tolerated this type of disrespect, but not me. So for the last time, follow the rules I set and there’ll be no reason for me to get pissed off. That is unless you’ve finally saved up enough to move out? Like you said you would two years ago?”

Tyler ground his teeth and glared back at his dad not saying anything.

“I thought not. You have to get another job and start making more money. The theater isn’t cutting it, and you being 25 years old is pushing the limits of my hospitality.”

He straightened a stack of papers on the table and tapped his pen against the lightly scratched walnut veneer.

“I gave you ‘till the end of the year to get out there on your own. Clock’s ticking.”

“... Can I go?”

Bradford eyed his son and then slowly nodded, turning back to his papers and marking off words here and there.

“And take a goddamn shower. You stink.”

He watched as Tyler lingered for a moment before turning and walking down the hallway to his room, sliding the door closed behind him. The older man sighed and wiped his face with a hand, leaning his head back and shaking it silently.

His son was trying, but it wasn’t good enough—Tyler needed to man up and realize that to get ahead, he had to put in the work just like his old man had. The fact that he’d decided that spending money on a gym right now was even a viable option seemed so blatantly obtuse to Bradford, and it rubbed him the wrong way that Tyler was just... okay with it.

Shaking his head, he returned to his work, eager to forget the conversation.

Tyler, however, couldn’t get it out of his head.

The younger man leaned his head on the closed door of his room for a moment, clenching a fist before letting his hand go limp and turning to move towards his bed in the corner.

His dad was right—the clock was ticking. But for every moment where Tyler tried, there was another that seemed to actively fight against him. Bills, student loans, even the food he bought for himself always seemed to take just enough of his money that he rarely had much left over for himself to save. His dad forcing him to pay rent to live in the room he’d grown up in wasn’t helping either.

Laying on his bed and scratching his flat, hairless stomach, Tyler shook his head and bit his bottom lip before letting out a pent-up breath. Casting his eyes around his room, he wallowed in his knowledge that he wasn’t anywhere close to leaving it.

As he inhaled though, he arched an eyebrow as his own scent filled his nostrils. Lifting his arm, he took a sniff of his pit.

His dad was right again. He did stink, though oddly, the musky, sweaty scent of his workout smelled more... pleasant to him tonight. It was like the scent of a well-earned victory, and he thought about the exciting prospect of Mr. Hayes—of Bill helping him achieve even more.

Without thinking, Tyler grabbed the water bottle he’d been given and chugged some of its contents down his throat. As soon as it touched his tongue, he gave a soft moan, eager for more. He’d taken swigs of it all along his route home in the car, and he was quickly reaching the bottom of the bottle now.

With one last gulp, he smacked his lips and felt his stomach grumble in satisfaction as the mixture slid down his throat. The taste really was rapidly becoming pleasant, almost addicting. He’d have to get more from Bill tomorrow for sure.

A sudden stirring between his legs gave him pause and his eyelids fluttered as the tingling spread outward. Reaching down, he slid his hand under the waistband of his workout shorts and grasped his dick, already half-hard and pulsing with need. He arched his back as he settled into his mattress, stroking himself slowly up and down with a silent gasp.

He’d never felt this sensitive before and despite his aching muscles, his body flushed with heat. From his feet to his shoulders, muscles tensed like he was getting the best kind of full-body pump, only this was all at once.

Letting out another, bigger gasp as quietly as he could, he felt his dick jump in his hand. The flesh was flushed and red now, throbbing thickly against his palm and leaking a steady stream of precum from its tip. Tyler had never been particularly large for his size, averaging around five inches on a good day, but right now, he felt... large.

Heavy.

Thick.

A shot of pleasure burst out from his balls and his hips moved up and down against his bedsheets as he shuddered, letting out a shaking breath while his hand rapidly stroked up and down his penis. The tip was a dark red now, and it felt truly hot against his hand, almost eager to burst.

He jerked hard, his hand flying up and down his slickened shaft as he thrust his hips upward once, then twice, and then he gave a final mostly silent cry, his throat clenching tightly to hold the brunt of the sound from alerting his dad as he came hard.

The sudden power of his orgasm hit him like a sledgehammer, spewing ropes of thick, white, goopy cum all over his smooth torso, and launching some onto his neck and into his open mouth. He twitched and shuddered from the onslaught of pleasure he felt, his balls pulsing in their sack and his shaft growing in his hand as wave after wave of sudden ecstasy crashed over him again and again.

His eyes rolled back into his head and his body went limp as his mind went blank, the thick cock between his legs now slowing its sexual work, but still shooting a few more ropes across his stomach.

Tyler’s mind blacked out completely, overrun with sensation and overwhelming pleasure. But as he drifted, his body continued to work. Muscles tensed and thickened ever so slightly, his skin tightening and stretching to accommodate the difference underneath them. Slowly, brown hairs began to sprout in a pattern over his chest, his legs, and even his face, giving him a day’s worth of growth in a matter of seconds. And ever so subtly, his mind began to shift as well. The image of Bill floated across his dreamscape now, that burly, muscular older man dominating his imagination in a way no woman ever had.

Smiling with post-orgasm bliss, Tyler’s eyes fluttered open and he tried to find his bearings.

What... just happened? Holy shit that was amazing!

He gathered himself, trailing his hand up and down his chest, smearing his impressive juices over his now lightly-haired skin. He moaned with pleasure and licked his lips, tasting his own essence and... enjoying it. The smooth, salty seed slid down his throat as easily as Bill’s mixture had and he scooped up more with a finger and brought it to his lips eagerly.

Sitting up in his bed, he was overcome with a wave of dizziness for a moment before shaking his head and standing. He felt charged now, like his workout fatigue had simply vanished and he was good to go again.

Was this the mixture’s effect? There’s no way that stuff works that good.

Now standing, Tyler moved towards his door and opened it, grabbing his towel hanging on the rack beside it and walking, naked, down the hallway towards the bathroom. His dad was still in the kitchen but... well, what he didn’t see wouldn’t hurt him. Unashamed, he rolled his head, cracking his neck and relieving tension as he entered the bathroom and started the shower.

As the hot water poured down on him from the showerhead, Tyler rubbed his body clean. The steamy water mixed with his own scent and filled the bathroom with his essence. It wrapped around him like a cloak and he grinned, reaching to stroke his half-hard member again.

Oh yeah. I think things are finally looking up.

Two weeks had gone by since Tyler had started training with Bill, and in just those two weeks, it seemed like he’d accomplished what would’ve taken any normal person months of dedicated work.

His muscles had exploded in size and strength, practically ballooning out from the bones they grew over much to Tyler’s delight. The constant chugging of Bill’s workout formula combined with the rigid workout routines Tyler now knew by heart had given the previously lean and lanky 25-year-old a body he was astonished to look at in the mirror each day.

The other thing he was astonished about was his sexual appetite. For the past two weeks, Tyler had found himself jerking off three, four, sometimes five times a day. His room now stank of musk and sweat and his essence. It permeated every wall, though that might have been because Tyler’s orgasms had a tendency to shoot well past his stomach now, most easily landing several feet behind where he chose to lay. And each one was a mind-blowingly pleasurable experience.

His cock was longer and thicker than his average sized dick he’d been used to, now edging around seven or eight inches. He’d jerked off thousands of times since he was a teenager, but this was like some sort of second puberty. Most day, it felt like he couldn’t do anything but think about the next time he was going to blow his load. It was as if he was stuck in some sort of endless pleasure loop, and it drove him crazy for more.

Yet for all of his excitement, a part of Tyler knew that Bill had to have done something to him. There was no way whatever was in those mixtures he drank all throughout the day were FDA approved, and even Olympic body builders took years to hone their bodies to the perfect size and shape. Tyler wasn’t quite as big as someone performing on the Olympic stage—at least, not yet—but he couldn’t hide the fact that he was taller, thicker, and stronger than he had any right to be in just two weeks.

Something else was going on.

Do I really wanna know? This is working out pretty fucking great for me.

Tyler pushed the leg press back and forth effortlessly as he thought to himself, rivulets of sweat dripping down his skin, cooling his body as he worked. He was at the tail end of his workout and he enjoyed the ease and simplicity working his legs required. Just sit and then push, release, repeat. He’d lost count over how many sets he’d done already, more interested in figuring out if he wanted to broach the subject with Bill or not.

The older coach had actually told him to drink more and more of the mixture he gave him every night. The taste had also intensified too. Tyler had taken a swig out of a new bottle Bill had given him a week ago and his eyes practically bulged with the intensity of the flavor. It was strong and salty and only made him eager for more. By the time a single day had passed, it was like his body had adapted to it being like water. It was all he wanted to drink.

If I ask him, he might react badly. Maybe stop training me. But I gotta know how this is possible. It’s... kinda insane that I’m not freaking out more than I am.

In fact, the thing Tyler had been the most surprised by was his own self-restraint. He was usually a cautious and methodical person when it came to big life changes, but somehow, the last two weeks hadn’t triggered his high-strung defenses. He’d allowed himself to focus more and to keep his head down while the rest of his body worked and changed.

Maybe this is just how I’m supposed to feel. More clear headed. Less fearful. It does feel... good.

He grunted slightly at his last push with his legs, feeling a burn surge through his thighs and knees as he released the weight and sat up. The pump through his entire body felt as amazing as it had the first time he’d completed Bill’s training for the day. He felt like his muscles tore and grew larger almost instantly with each effort, and the hot blood pumping through him gave him an instant high.

Bill was working out just a few rows down from him. He glanced over at the behemoth of a man as he squatted down, a weighted bar slung across his shoulders nearly bending as he rose back up without struggle.

His ass is so huge. Wonder how long it’d take me to get one like that? Those shorts certainly don’t hurt either.

Tyler’s cheeks reddened as he ogled his coach and he felt a tightening in his own shorts that he couldn’t help but enjoy. Two weeks ago, he never would’ve looked at another man working out in the gym with the confidence he felt now. But Bill, despite being older, was as handsome as anyone Tyler had ever seen. It didn’t help of course that he consistently wore too-tight, overly-revealing clothing. Short shorts and a skimpy tank-top were standard fair for Bill, and Tyler never complained.

But it wasn’t just that Bill was handsome and liked to show off. Tyler’s coach was kind to him, even flirting a bit as the two of them got to know each other better through training. He hadn’t gotten around to asking the older man, but Tyler was sure he was gay, or bisexual at the very least. Tyler had always considered himself as straight but... sometimes the sight of his coach flexing or smiling over at him made him question things.

Well, more than that. He’d jerked off to Bill in his head every night for the past few day. He’d even had dreams about the older man kissing him, hugging him, and last night specifically, jerking and sucking him off. Maybe it was because he was in a position of authority over Tyler, or just seemed so genuinely interested in him.

Whatever it was, Tyler’s mind had been flooded with images of the man standing shirtless and sweaty in the locker room after their workouts, running his eyes over every damp strand of body hair and each slick mound of muscle. Sometimes he purposefully imagined them together, hands roaming over their bodies under the steamy jet of the locker room showers, no caring if anyone saw them.

Tyler felt his cock throb in his shorts and he gasped, feeling a damp spot forming from the amount of precum he’d suddenly released. He glanced around and reached to adjust himself, pulling his erection under his waistband while thanking himself for going with black instead of a more revealing color.

“Feeling good there, kid?”

Tyler jerked back, startled as he turned to find Bill squatting next to him, water bottle in hand.

“Y-yeah, just finished up my legs. Guess you did too?”

Bill nodded, “Sure did. You keeping your lower back and hips in the seat like I taught you?”

“Always try to.” Tyler said with a grin, his heart beating rapidly at the sight of the man beside him. Bill’s tank top was absolutely soaked, and he smelled... wonderful. It was musky and masculine, but also seemed perfectly attuned to him somehow. Like the scent belong to him personally.

“Care to show me then? Can’t have my star student trying to pull one over on me now.” Bill said with a grin back at Tyler.

“Oh uh, yeah, sure. I got one last set on me, I think.”

Tyler sat back in the seat and settled himself, preparing to push against the flat surface.

“Hold on, kid. You’re pushin’ what? 325? 340?”

Tyler cocked an eyebrow, “350. I’ve been leveling up a lot the past two weeks. Used to be a struggle to do 150.”

Bill stroked his mustache thoughtfully before nodding.

“Right, then. Let’s go for broke. Don’t look at the weights. Just push through the tension as best you can.”

Taking a deep breath, Tyler nodded and shut his eyes. Bill had done this several times before, getting Tyler to ignore what he saw and focus on the feeling of his movements, the feeling of his strength as it built up and released inside his body.

He heard the sound of the weights sliding onto the machine as Bill balanced them out, feeling the clank of metal on metal in his shoes as he waited.

“All right, kid. If it’s too much, let me know and we can readjust. But I think you got this. Get to work.”

Bill’s voice was deep and even, but carried with it the best kind of tone for when someone was pushing their limits. It was caring and safe and steady. It felt... good in Tyler’s head, and he breathed out slowly while he extended his legs.

The new weight didn’t feel as bad as he’d expected it would at first. Maybe Bill hadn’t put as much on as he’d anticipated, or maybe Tyler still had a bit left in his tank than he

realized. Whatever the case, he pushed until his legs were straight and fully extended, held that position, and then slowly released them back to rest.

“Good, kid. Very good. But I did see a bit of hip movement on that one. You sure you’re keeping them down tight?”

Tyler nodded as a bead of sweat dropped off his nose, “Trying my best to!”

Bill smiled and knelt down on his knees right next to Tyler. He nodded for him to try again.

Pumping his thighs, Tyler grunted softly and pushed against the surface again until he was fully extended. He let his legs slowly retract just a bit as he released when—

“Mm, okay. Feel this?”

One of Bill’s hands was suddenly cupping Tyler’s ass right where he was clenching his buttocks, and the other landed under Tyler’s tank top. Bill’s fingers were splayed out and rubbing over his tight abdominals as he held the weight with his thighs.

“Don’t let the weight out. Just... hold it. You got this, kid.” Bill’s voice was even and his eyes almost playful as Tyler shook slightly, tense from holding the new weight for so long.

“You feel your thighs and butt tightening like that?”

His hand rubbed over Tyler’s ass, fingers practically swiping over his sweaty crack before running sensually over his aching thigh. He shuddered and nodded, feeling that all too familiar tingle between his legs start to bubble up again.

“That tension is good. It’s where you’re holding all that strength. You just gotta learn to maintain it, keep it even and level despite any amount of weight or any... distractions.”

Tyler nodded, sweat pouring down his face now as his legs burned like hell in the best possible way.

“And this here in your core?” Bill rubbed his fingers softly over Tyler’s damp body hair that had grown thicker over his torso, reaching lower and lower before they dipped just short of his waistband.

“This tension is the kind you need to release. It’s not good to bottle it up during a workout. I teach all of my boys to do this and, aw hell, I even do it myself. You want me to help you out, kid?”

This is fucking... insane! I can’t—I don’t—I want him to...

Bill reached a finger under Tyler’s waistband and pulled it down, letting the younger man’s cock spring up and bounce in the air. It was a dark red and to Tyler, it looked longer and thicker than it had before he’d left for the gym tonight. It pulsed and throbbed and Tyler could feel his balls churning with need as he held the weight with his legs still. Though somehow... the weights he was pushing against felt like nothing as he watched Bill’s eyes on him.

Wordlessly, Tyler nodded yes again and again.

The warmth of Bill’s hand enveloped his cock as it stroked up and down rapidly, slickening the shaft with the copious amounts of pre he was producing from his tip. Bill grinned at his young trainee and sniffed deeply, letting their scents commingle in his nostrils and fill up his lungs.

Taking his other hand, Bill pulled Tyler’s shorts and jockstrap down further, leaving the man’s lower half exposed to the air as he kept working, pumping his hand faster and faster. His free hand cupped the heavy balls in the now very hairy sack Tyler had, and he could feel them churning in his palm. Bill growled deep in his throat, a guttural, beastly growl no human could ever hope to match.

This kid was his.

Tyler cried out and thrust his hips, causing his legs to extend and push the weights back entirely. Easily, his legs held the rack up as his body pulsed all over. Tyler’s muscles thickened rapidly and his bones seemed to extend slightly to match his new heft. Body hair grew in like a wave, giving him an entirely more hirsute look than he’d had just ten seconds ago. He was a beast, or close to one.

Bill kneaded his fingers against Tyler’s ass, slipping his middle finger easily through the musky sweat and stopped right against his twitching hole. At the same time, he tightened his grip on Tyler’s cock and let the younger man thrust up into his fingers.

Tyler cried out again and finally couldn’t contain himself. He arched his head and roared, a sound filling his throat like an animal as he came hard, spurts of cum coating his torso and neck and face. His roar felt like it shook the room while Bill held his dick and thrusted into his hole with his finger as he watched with rapt attention. Tyler’s orgasm continued, his massive balls clenching in their sack and jets of thick cum arcing over him now, landing on the machines and the floor.

Bill leaned down and swallowed the tip of Tyler’s cock in his mouth, releasing the shaft from his hand as he felt the last few spurts of cum launch into his waiting throat. He pulsed his middle finger inside Tyler’s hole, stroking his prostate and getting a few more shots out of the younger man beneath him.

Finally though, Tyler was spent and he simply leaned back to breathe, almost forgetting that he was still holding up the weight, now with just one leg. He eased it back onto the resting bar and placed a hand on Bill’s head. The older man was still sucking him dry and the novel sensation of his clearly talented tongue dancing over his glans was just pure heaven. With his other hand, he wiped his chest as best he could, covering his fingers in his cum and bringing it to his mouth to taste.

Somehow it was even better than it had been before. Almost sweeter and saltier now. More potent.

Bill’s mouth suddenly disappeared from his cock and then, just a moment later, Tyler felt the scratchy hairs of a mustache poking at his face before a pair of lips found his own. Bill’s tongue tasted like his seed, and Tyler pulled the larger man close, sealing their lips against each other as they kissed deeply.

The two remained lip-locked for a few more moments before Bill pulled away slowly, lapping lightly at the soft beard and mustache Tyler had started growing.

“Sorry to rush things on you. Normally I don’t do this but I just find you... irresistible, kid.”

Tyler looked up at Bill in awe. His mind was simultaneously worried about what had just happened but also... utterly thrilled. He’d never felt this good before, and Bill was now doing exactly what Tyler had been dreaming about.

“You mean you don’t normally suck off the guys you train in public?” Tyler asked, lazily running his hand up and down Bill’s thickly muscled arm.

“Oh, I definitely do that. Go ask Bobby! He’ll tell you all about my public sex fetish. Nah, I just meant, well, this next part.”

Slowly, Bill reached over and removed the golden bracelet from his left wrist. As he did, Tyler watched as the older man stood up and stepped back a few feet.

It was like a visual rush. As soon as the bracelet was removed, Bill’s entire body looked like it pulsed and got blurry for a second. Tyler blinked and then all at once, thick white fur began to sprout from Bill’s body. It rushed from all sides, coating his legs, arms, chest, stomach, and finally his neck and face.

All at once, Bill’s body lengthened and thickened. Within a few seconds, the already giant man had become absolutely towering. He stood clear over seven and a half feet in height, and his enormously muscled body must’ve clocked in around close to four-hundred pounds. The fur did little to hide his heft, and his muscled only seemed to expand and plump up under a layer of fat.

Bill turned and cracked his neck with a sigh, his face pushing outward and forming a muzzle complete with a wet, black nose and a sharp set of ursine teeth. His ears migrated from the sides of his head to the top, now coated with soft-looking white fur and somehow adorably cute despite Bill’s now vicious-looking animal nature.

His hands thickened and grew a padded covering on his palms, the skin thickening and darkening as his fingernails sharpened into deadly-looking claws. His feet also followed suit and like he was eager to do so, Bill sliced clean through his already torn clothing, letting his tank top and shorts fall to the ground in tatters.

Tyler watched in awe as Bill’s cock swelled, already hard and leaking profusely onto the ground as its coloration changed from a deep red to a dark black. It was massive, well past fourteen inches, though it seemed to be gaining more by the second. A tube of flesh wound its way up the base of Bill’s cock, forming a thick, furry sheath as his balls thickened in their fuzzy sack to the size of softballs. Bill let out a groan of satisfaction, his body twitching slightly and his ears flicking back and forth and he seemed to relax.

Crossing his massively muscled, furred arms across his broad chest, Bill settled himself against the side of the leg press, allowing Tyler to take in his true form for as long as he wanted.

“You’re... you’re a were... bear?” Tyler asked, barely believing what he was saying let alone what he was seeing.

“Mm. A Beastkin. Didn’t use to be too many of us left around, but I’m doing my part to fix that.” Bill said, his voice flowing from his furry muzzle was even deeper now, though it retained its warmth despite having a slight growl at the end of some words.

“S-so you’re not human? But you looked human?”

Bill chuckled and held up the bracelet he’d been wearing before his transformation.

“I can look like a human if I wish, though it’s a bit uncomfortable for too long. A body like mine has needs that, if they ain’t filled, tend to make me go a bit stir-crazy.”

Tyler nodded and eyed the bouncing cock and plump sheath just in front of him, his mouth suddenly starting to salivate.

“I’ve been... having a lotta thoughts about you, Bill. And my body is—it feels like it’s changing more and more. More than it should be. Is that... your doing?”

“Absolutely.” Bill said with a chuckle, stepping forward and spreading his arms, “You think you’d make those gains in just two weeks without my help? You’ve been drinking from the source, kid. Always helps my boys grow big and strong.”

Tyler’s nose caught a whiff of Bill’s scent and it reminded him of what his room back home smelled like. Musky, heady, powerfully masculine, and like he was near a being of potent virility. His nostrils flared and he nodded.

“Those mixtures? All of them were from you?” Tyler asked as he shifted forward to stand up. His legs felt stronger than before he’d started his workout. In fact, his entire body felt stronger. Bigger. He was taller now, thicker, and his dick twitched at the sight and thought of what he and Bill could do together.

“Free range, organic milk from the source.” Bill said with a laugh as he reached down and tugged on his bobbing ursine erection and tweaked one of his plump, black nipples.

“Started just with my precum and my milk, of course. Didn’t wanna overpower that cute body of yours. But now? You should be expertly familiar with what these things make.”

He reached down and cupped his balls as he moaned softly, feeling them pulse in his padded palm.

Tyler licked his lips and ran his hands over his still cum-soaked chest as he stood in front of the massive bear man. He looked up at Bill towering over him, struck by the sheer strength and masculinity that seemed to pour off of the beast.

“Why don’t I feel... more afraid? Or worried?”

Bill reached down and ran a claw slowly over Tyler’s bearded face, and then down over his chest.

“Because you want more. And because the magic I possess has already started to weave into your body, making you more... acceptable to my kind. Our kind.”

“Our kind?” Tyler asked.

“Oh yes.” Bill said with a sly wink. “Tell me... is your dad into bears?”

Tyler arched an eyebrow, “Uh, he might watch Discovery channel now and then but I doubt he’s ever seen anything like you.”

“Mmm. Give it a few more days. I’m sure he’ll come ‘round, cub.”

Bill leaned in, licking between Tyler’s bulging pectorals and up his neck until he felt the human’s lips open for him. He slid his larger tongue inside the younger man’s maw as he moaned, then pulled back to look at Tyler.

“Just a few more days.”

Bradford huffed as he snapped the sheets across his mattress, pulling the wrinkles taut and tucking the edges underneath.

Tyler had just left for the gym in a rush, Bradford barely even catching a glimpse of him before he rushed out the door and drove off. He tapped his foot against the hardwood floor, shaking his head as he sniffed in annoyance. If he was honest with himself, he hadn’t really seen or talked to his son for over a week or more, other than the odd glance or acknowledgment here or there.

His house had started to seem like it needed a good spring cleaning, and it hadn’t been helped by the fact that his son was constantly coming home smelling like an overly sweaty gym rat every night. He’d listen from his office or glance from the kitchen table as Tyler would loudly shuffle in just before curfew, a rule his son had actually been following since their last argument. But the disgusting air of masculine stink that seeped in from the younger man’s skin, damp clothes, and gym bag seemed overwhelming to Bradford.

A few nights were one thing, but this had clearly become a habit that Tyler was more than okay with.

But not Bradford.

The whole thing felt wrong.

Tyler was more reclusive now, spending nearly all the time he was at home in his room. He’d thought that maybe if Tyler wasn’t interested in seeing or talking with him that he might apply himself towards moving out or getting another job. But the only thing his son seemed to obsess over was going back to the gym downtown or going to work at the movie theater.

He never asked his son about it, not wanting to be the one to break the unspoken wall of tension that had clearly been building between the two of them. But his gut told him that it was the wrong thing for Tyler to be focusing on right now, and it made the older man angry that his son seemed to be refusing to come to terms with anything they’d talked about. Things had felt so tense over the past three nights that Bradford had even gone to visit one of the local parishes where one of his old friends was a priest. He’d just wanted to get some spiritual advice, or maybe just to talk to someone else about these issues.

But it seemed that no reassurances from his priest friend, and certainly none from any higher power, could shake the feeling that something was wrong with his son’s outlook. Bradford had driven home from the parish, feelings of anger and dismay rolling through him as he walked up to the entrance to his home.

That god-awful smell had permeated seemingly every surface of the house now. He stopped and stood with the door ajar, almost worried about closing it behind him for fear of being overwhelmed by the sheer power of the odor. A spike of anger flashed through him and he grunted as he slammed the door closed, walking down the hallway and grabbing the handle of Tyler’s room and turning—

“What the fu—”

He gripped the door and yanked, feeling it groan but hold in place as he tried unsuccessfully to open it.

So you’re locking your room now, huh? In my goddamn house?

Waves of red-hot rage rolled over him, huffing heavily as he twisted the metal handle hard and shoved his shoulder into the edge of the door once, twice, and then with a big breath, a third time.

There was a loud splintering of wood as the door lurched open and Bradford rushed forward, eyes scanning the room like a predator as he breathed in and out heavily.

He winced and reached up to press a palm to his head as he felt an intense wave of dizziness overwhelm him. The same scent that had been flowing throughout the house was here. Oh, it was definitely here. Tyler’s room had been absolutely saturated with whatever it was. There was no way this was just some sort of build-up from damp clothing.

This was something much more.

Bradford nearly gagged as he breathed in, pulling his shirt over his nose and feeling his eyes tearing slightly as he stumbled around the room. The air felt damp around his skin, and he coughed, sucking in more and more of whatever was making it smell so off.

Maybe it’s mold. But it smells so... distinct. It’s like a damn animal.

As he calmed and his rage subsided momentarily, Bradford could focus more. He felt himself adjust to the room and he cast his eyes round again, this time scanning for anything that might help him figure out what the hell was going on with his son.

Looking over Tyler’s desk, he spotted a splash of color on top of a stack of what looked like crumpled resumes. He walked over, letting his shirt collar fall back down around his neck as he grabbed the flyer, holding it up to read.

Hm. ‘Hayes’ Gains’. This has to be where Tyler’s been going.

Bradford sniffed and wiggled his nose slightly. The scent of his son was way less intense now, like he’d gotten used to it in just a few breaths. The room was still disgusting but the putrid smell seemed... further away somehow. Or at least less cloying than it had been when the door opened.

It just smelled like... Tyler now to him.

A thought nudged him. One that had been growing in his mind ever since he’d visited the parish.

I should talk to him. Meet him on his territory. Maybe that would offer some sort of truce.

He glanced at the flyer and then around the room. It was dark and the off-grey walls were covered in a mismatch of old movie posters, fading WWE promos, and random LEGOs and action figures. With a sigh, Bradford stuffed the flyer in his pocket and nodded.

Maybe it’s time to stop treating Tyler like a child for once.

He glanced at his watch and grimaced as he left the room, closing the door as best he could before grabbing his keys and heading out the door to his car.

The drive had only taken thirty minutes but Bradford couldn’t help but feel a bit apprehensive as he pulled into the nearly empty parking lot. Save for three other cars at the front of the wide expanse of pavement, one of which Bradford knew was Tyler’s old Corolla, no one else was there. He parked further back from them and checked his watch.

Nearly midnight. He must be getting out soon.

Tapping his fingers on the steering wheel, he waited impatiently for the doors to the gym to open.

Five minutes went by.

Ten.

Finally, after fifteen minutes, the big glass doors at the front of the gym swung open and two figures walked out. Bradford squinted and leaned forward, trying to get a better view from his seat.

It was two men. One towered over the other by at least a foot and was clad in a damp, rather skimpy-looking tank top with the same logo at the gym. He had his arm around the shoulders of the smaller man beside him, pulling the closer together as he smiled widely and laughed. He had a distinctively bushy beard and mustache that seemed to suit him well, and his shorts left little to the imagination, a slight bulge easily noticeable even at a distance.

Bradford tilted his head in confusion.

Why had he thought that? He blinked away the confusion and looked over at the smaller man beside the taller one. He looked... wait... there was no way...

What the hell...?

It was Tyler. Impossible. But... it was Tyler! He wore his hair the same way, he even had the same clothes on that Bradford had seen him coming into the house with for weeks in a row. But somehow he was... so much larger. Bigger. His muscled body pulled the fabric tautly across every curled surface as he walked beside the larger man.

Bradford pinched the bridge of his nose and shook his head, craning forward to make absolutely sure. His son had been, for lack of better terms, lanky and average-sized compared to most other men his age. But now... now he was so much wider and taller than Bradford remembered him being. Tyler even had a thick beard covering his jaw, and his arms and legs looked absolutely coated in thick body hair. There was no way that he could’ve gained so much size in such a short amount of time. It wasn’t physically possible.

He watched as Tyler grinned up the larger man before the two of them stopped in front of one of the vehicles; an overly large, fully blacked-out SUV that had to belong to the other man. Tyler had been holding a hefty-looking water bottle and he brought it to his lips, drinking the remaining contents as the larger man watched with a satisfied grin and his arms crossed over his thickly muscled chest.

The water bottle now empty, Tyler stepped forward and wrapped his arms around the larger man and pulled him close, the two of them leaning in and kissing one another.

Bradford’s eyes bulged as he watched his son push the larger man back slightly, tilting his head and deepening their kiss as the leaned back onto the hood of the SUV. He was at a complete loss for words as Tyler moved his hands down to openly grab the ass of the other man, letting his other hand roam the expanse of the broad chest in front of him.

Like an involuntary response, Bradford felt his dick twitch in his jeans, a soft moan exiting his mouth as he watched his son’s make out session on full display in the parking lot.

He shuddered as his mind raced. Conflicting thoughts blazed around inside him like a warzone.

Tyler is gay?

Tyler is gay and making out shamelessly with another man in public?

Why am I getting hard?

Why does Tyler look so... big?

Bradford shuddered as the larger man leaned back from the kiss, cupping his son’s face in one hand before whispering into his ear. The two of them pulled apart and quickly got into the SUV. The headlights flicked on and the vehicle pulled forward, leaving the parking lot at a steady pace.

Fumbling with his keys, Bradford raced to turn his car on and follow in pursuit, his dick throbbing needily between his legs.

He shook his head, flexing his legs and thighs to try and spur on the blood flow away from his nether regions like he’d used to do as a teenager.

This is wrong. This is... this is so fucked up. Tyler isn’t gay. He’s never shown any sort of interest in men before. It’s... why... why couldn’t I stop watching him?

Bradford breathed deeply as he trailed well behind the SUV on the highway, trying his best to stay incognito. Sweat was beading all across his body and he wiped his forehead with the back of his hand before he turned the AC on full. The cool air hit him and he sighed heavily, wrinkling his nose as the scent of the air freshener was carried along with it. It smelled extremely... artificial for some reason, to the point of being distracting as he followed the SUV.

With a yank, he snapped the thin string the freshener hung off of and tossed it in the backseat, wincing at the strong, overpowering scent. Part of him actually missed the masculine smell of Tyler’s room, and he tried to recall it in his mind.

Instantly, his nostrils flared and he easily imagined the smell in all its heady, muskiness like a perfect memory. He moaned and gripped the steering wheel tightly, the wrapped faux leather squeaking and creaking lightly under his grasp. He wanted to smell that scent again, and soon. He craved it.

Bradford blinked and shook his head, turning off the highway behind the SUV and onto an old state road. He lost track of the miles they drove down the mostly dark stretch of pavement, his mind an utter mess of confused feelings, flaring emotions, and some sort of instinctual need he wasn’t used to. His fingers twitched and his skin pricked up in goosebumps as he drove, shudders running up and down his spine.

He followed them as they turned off down a long, winding pebble driveway. Whoever he was, this guy had a lot of land. He flicked his lights off as he came to a stop on the road, watching the SUV drive over a small hill and further into the lightly forested area. Waiting a few more moments, he turned his lights back and followed them slowly, moving uneasily in his seat and scratching at his arm as a sudden itch flowed over it.

As he crested the hill his eyes widened at the house laid out in front of him. It was a massive log cabin, more like a log mansion that was very nicely lit by a series of glowing, flickering LED candlelights. The driveway wound its way around into a circle, and the SUV was parked right in by the massive, wrap-around front porch. It looked like Tyler and his... friend had already gone inside.

Bradford pulled his car forward and parked right behind the SUV, breathing quickly through his nose as he sat and looked at the front door, half expecting the man to come out waving a shotgun at him.

But no one came.

He sat there for a few more minutes, building up enough courage. Finally, with a huff, Bradford launched himself out of his seat and stood on the pebbled drive, closing the door behind him with a metallic groan as he made his way up to the porch.

He stood there in front of the massive door, easily bigger than most doors on most houses. In fact, everything seemed larger. The porch was wider and even the rocking chairs and bench swing looked... way bigger than normal.

A wave of intense dizziness washed over Bradford and he shook his head again, itching at his other arm through his light jacket now and fidgeting as he stood there. Rolling his shoulders, he shivered as he reached a hand up to knock on the door.

The muffled sounds of movement could be heard as he waited, holding his breath when suddenly, the door swung open wide, revealing the towering man.

Up close, he was just impossibly large, a behemoth built like an absolute tank. He’d gotten rid of his tank top and shorts, leaving him standing in nothing but a damp jockstrap that barely contained his large shaft and balls which bulged out in every direction. The man crossed his arms over his incredibly hairy chest, leaning against the door casually as he smirked down at Bradford.

“Can I help you?”

His voice was deep but friendly, and Bradford froze for a moment as he heard it. Something about it seemed oddly comforting and warm. His eyes fluttered and he spoke up.

“My son. Tyler. He’s... I saw him drive off with you at the gym and I... I’m... I wanna see him now.” He felt his tongue go dry in his mouth and he looked up at the other man, watching him carefully as his body felt slack.

“Well now,” the man said as he stood up and stretched out his arms in welcome, “You must be Brad. Ty’s told me so much about you since we first met. Welcome to my place. You wanna come inside?”

Shaking his head, Bradford held up a hand as he tried not to look at the other man’s nearly nude body, “I... I’d prefer to stay out here, no offense. I just wanna talk to my son.”

“Oh come on now, you don’t just ignore hospitality when it’s offered. You’re a guest. Act like one. Here.” The larger man held out his hand to shake.

“Name’s Bill. Now why don’t you come inside, Brad? Getting cold out there I imagine.”

Bradford glanced at Bill’s offered hand and slowly reached out his own to shake it. Their hands slid into each other and gripped tightly and, as they did, Bradford felt a warmth spread out from the connection and run up his arm. At the same time, that musky, masculine scent flowed out from the doorway and he breathed it in.

Immediately it overrode his senses and Bradford... Brad found himself following Bill inside, still clutching his hand as he pulled him further.

The interior of the mansion was impeccably well furnished, with a modernist style combined with more organic tendencies. Growths of plants and moss and other forest-like touches stood out among the sparse open-floor design. The entire place felt like some strange combination of a livable, modernized forest floor. There was so much... room inside. More than any normal person would need, and yet so much of it was spread out between the furnishings in the space.

Brad gripped Bill’s warm hand as he was led forward towards the back of the house. His eyes were locked on the bare ass of the other man as they walked, his backside swaying with each step, the jock he wore accentuating each globe of muscle and fat. He practically salivated at the thought of having such a body, something so manly and powerful.

That scent and pheromones swirled around him as they passed an impressive kitchen and then an entertainment room. All of it was state of the art and yet still seemed to fit perfectly. Finally, they arrived at a set of French doors which were slightly opened already.

“Where’s... where’s Tyler, Bill? I wanna see my son.”

Brad breathed in again, that same scent was so strong throughout the entire house but it seemed to intensify more here. He slipped his hand out of Bill’s and scratched as his thigh, breathing harder as his entire body felt flushed with heat all of a sudden. He stepped closer to the other man, feeling his body heat as it radiated off of him.

Bill grinned over as he watched the smaller man squirm in place.

“Oh believe me, I want you to see him too, Brad.” He swung the doors open and gestured to the enormous California king bed. “Why don’t you get comfortable? Ty’s just showering off after his workout. You and I can get better acquainted while we wait.”

The bedroom was similarly designed, with large, full-length windows looking out over an expanse of dimly lit forest. The ceilings had to be nearly eighteen feet high, and the lush green plants around the room gave it an exquisitely warm, organic feeling, almost like a den.

With a slow nod, Brad walked forward. To his right, the sounds of a shower could be heard from a door with steam slowly exiting through its slight opening. He turned towards the bed and sat on the end, confused as to why he wasn’t putting up a fight. He wanted to, in fact his mind was screaming at him to yell at Bill and pull Tyler out of that shower and out of this house and drive away.

But he didn’t. Because another, growing part of his mind liked where things were heading. And he could see part of what was happening and... why should he stop it? He was feeling so good.

I’ll just let Tyler shower off and I’ll get to know his friend. Maybe... we’ll find some common ground? Yeah. I’ll hear him out.

Brad saw Bill eying him from the doors and he glanced around the warm room, shrugging off his light jacket and kicking off his shoes without really thinking.

“So, you... you’ve been friends with my son for a few weeks now?”

“Mmm, that’s about right,” Bill said as he stalked forward, stepping slowing and steadily towards the other man. He let out a chuckle, “Ty’s been coming to me for support. Weight training. Coaching. It’s my gym and I take a special interest in anyone who wants to better themselves. Seems to me that you’ve been a bit hard on him lately though, from what he’s been telling me.”

“I-I... maybe a bit. But he’s an adult and he needs to take—”

Bill’s bulky, heavy body lowered itself down next to him on the edge of the bed, the sudden weight causing Brad to lean against the other man’s massive, hairy arm. He shuddered at the touch and brought his hand up to balance him, gripping onto the hardened muscled of the giant next to him.

“—take responsibility for himself. I want him to be his own man.”

Bill nodded with a tilt of his head, watching Brad shift next to him, his bare thigh rubbing up against the smaller man’s still clothed one.

“And you thought that berating your son for years and threatening him with kicking him out of your house was the best option?”

Brad felt the shame of his past actions roll over him like a freight train. Of course, he wanted Tyler to succeed. But he needed to be pushed harder... right? That’s how he had grown up. Why should his son be any different? But... wait. Was that right?

One of Bill’s arms laid heavily around his shoulder and a whiff of potent musky sweat swirled around him.

“How about you stop thinking so hard for a minute. I’ve been helping Tyler out so much these past few weeks, and he’s really come ‘round to what having a new outlook on life can be like.” Bill ran his fingers up and down Brad’s arm as he leaned over and down, his lips right against the other man’s ear.

“I think you could use one too. In fact, I think the two of you together, being on the same page, would do wonders for you both. What do you think?”

With a small shake of his head, Bill spoke slowly, “Bill... what’re you doing to me? Why do I feel so... good? I should be freaking out over this shit.”

“Oh, that’s just my scent you’ve been smelling. It tends to have that kinda effect on most guys, though it definitely gets stronger the more you’re around it. And I gotta say, it seems like you’ve been sniffing Tyler’s for days now. That’ll do a number on your head for sure.” Bill smirked at the smaller man.

“His... scent?” Brad asked as he turned more towards Bill, reaching out and tentatively running his fingers through the impossibly thick body hair on the man’s shoulder and chest.

“Mm, yeah. Lovely smell, ain’t it? I can’t get enough of it and now you can’t either. Although Tyler’s had quite a bit more than just that to smell. He’s been sucking down all sorts of new things since we met.”

The sound of the shower stopped suddenly and Brad heard shuffling behind the door.

“He’s... he’s gay. Tyler’s gay.” Brad looked up at Bill in confusion. Nothing seemed to make sense now but it all just felt so pleasant. So warm and nice.

Bill chuckled, “Well, he might’ve been a bit bi-curious at first but I think I won him over. And it seems like you’re heading that way too. Or maybe you always have been?”

He reached over and rubbed the growing mount trapped under Brad’s pants, causing a sigh of pleasure to escape the man as he clutched at Bill’s pectoral. The larger man’s nipples were pert and hard, and Brad ran his fingers across the one closest to him, tweaking the hard surface. A pearl of white liquid leaked from the tip and Bill moaned deep in his throat.

“Yeah. Been giving him a bit of my milk, at least at first. Had to graduate him up to drinking my precum and then my cum after a few days because his body adapted so fast. Way faster than any of my other students.” Bill said with a satisfied grin as he tilted his head and locked eyes with Brad.

“You wanna try some too, don’t you?”

Brad looked away from Bill’s piercing gaze and locked onto his right nipple, running his hand around the heavily-haired edge and spreading it out with his fingers. Another drop formed at the end and dripped onto his middle and ring fingers. Without hesitating, he brought his hand to his mouth and sucked them dry.

The taste was like a warm, light cream and it coated his mouth in a deliciously sweet way. He moaned and looked up at Bill with pleading eyes.

“Seems like you’ve taken a shine to it. That’s real good.” He stroked the smaller man’s cheek with a finger as he rumbled and leaned into him. “I’ll let you have more but you should make yourself more comfortable. How about getting out of those heavy clothes, yeah? Tyler’s almost ready for us.”

Brad nodded and reached down, pulling his t-shirt off and unbuttoning his jeans hurriedly. His heart was racing and his tongue kept swabbing the inside of his mouth, wanting more of that milk. He shrugged off his jeans and, in the same motion, his boxers, leaving him fully naked and bare to the other man.

Brad’s body was that of the average 50-year-old; worn, pudgy, and soft around the edges. His pasty white skin was dotted with freckles and, try as he might, any muscles he used to have had since receded underneath a layer of fat. Maybe in his heyday, he could’ve done something more, gained more muscle or gotten strong. But those days were long gone and he’d settled with what he had.

Bill growled deeply and nodded to himself as his eyes roamed the body of the smaller man next to him.

“We’ve definitely got a lot of potential to work with. I think we can make you into a beast of a man like I did with your son.” He leaned in and sniffed Brad’s shoulder, moving his nose upwards.

Brad whimpered and bared his neck to the other man, almost on instinct more than anything else as he waited. His average-sized cock, no more than five inches, throbbed and leaked between his legs.

“Mm, yeah. You should come along nicely tonight, what with your son helping you out just by stinking your house up for the past two weeks. Our scents really do work wonders on your humans.”

With a heavy shift of his weight, Bill reached down and slid off his own jockstrap, freeing his massive, throbbing member from its confines. His hefty balls jostled between his powerhouse thighs and he let out a long, low growl. It reverberated around the room and sent chills down Brad’s spine.

Bill grunted as he leaned back onto the bed entirely, stretching out as Brad hungrily moved his hands to roam over the expanse of the larger man’s torso. He tweaked both of Bill’s nipples, eagerly moaning as he bent over and latched his lips onto one and sucked, pulling drop after drop of milky juices from the nub.

The flavor sent him into a frenzy and he whimpered as he worked, the itching from before returning with a vengeance and causing his skin to twitch like mad.

“Looks like you’re already startin’, Brad,” Bill said as he ran his fingers through the other man’s thin mop of hair, stiffening as Brad’s tongue pulsed and the human’s mouth sucked his nipple with particular fervor.

“Oh yeah... that’s how to do it. Can’t wait to see how you look in a few minutes, stud.”

Brad pulled away from Bill’s nipple to catch his breath. But as he looked down, he noticed something... off. Bill’s perfectly tanned skin was... getting whiter. Or rather, white fur was sprouting up from his skin in rapid fashion. He tilted his head in confusion and wonder as he watched.

Bill groaned in sheer pleasure as his body shifted, growing larger and furrier and thicker and more beastly. Brad’s eyes widened in disbelief as the man before him turned from a poster-worthy bodybuilder to a giant, heavily muscled, beast of a bear. White fur suddenly coated his entire form, and muscles popped and flexed and grew underneath as his bones shifted.

Moving back slightly, Brad watched in wonder as Bill’s face pushed out into a muzzle, complete with a wet, black nose and sharpened teeth. His nipples turned black under the white fur and his chest and arms expanded to herculean proportions. Brad couldn’t help but glance down at his crotch where a thick sheath of short white fur encased the base of the beast’s dick which was leaking profusely down its ample girth and length. The skin had turned from red to black, matching his nipples and giving it the perfect contrast against his white fur.

After a few more moments, the beast—a polar bear... man for lack of a better term in Brad’s mind—huffed contentedly as he placed a gold bracelet onto an end table at the opposite end of the bed and sat up. He had to have been five and a half feet tall just sitting down on the bed, and probably around seven or eight standing up.

No wonder this house is enormous.

Brad locked onto his stunning, icy blue eyes and shivered with pleasure as the scent that had been swirling around him finally reached its most potent level. He could feel his own body getting ready for something, and he had an idea of what it might be.

“How do you like the real me?” Bill said with a wink, tracing a clawed hand up and down Brad’s pudgy stomach.

“I—I uh... you’re... a polar bear. A fucking... hot polar bear.”

“Correct. A Beastkin, officially.” He nodded towards the bathroom door as it swung open, “And it looks like Ty’s all ready for us.”

Tyler stood in the doorway with a damp towel hanging around his neck and nothing else. His body had grown even more since Brad saw him in the gym parking lot it seemed. Standing at what looked like was close to seven feet tall, the younger man was as hairy and muscled as Bill had been just moments ago. He could’ve easily been on any one of the wrestling posters hanging back home in his room.

Aside from the steadily leaking, huge cock sprouting from between his legs, that was.

Tyler arched an eyebrow and walked over to the edge of the bed, watching his dad watch him with bulging eyes.

“Hey, dad,” he said in a slightly playful tone, having fun with the idea of his father seeing his newly improved body in the nude, “Coach Bill here’s been helping me out, as you can see. What do you think?”

He held up an arm and flexed, the thickly corded muscles and veins throbbing in excess under his thick body hair. With his other hand, he grabbed his dick as it spurted a shot of precum, some of it landing on Brad’s legs.

The older man shuddered at the sheer lewdness of his son’s presentation, and part of him was begging to leave. But the louder part of him wanted more. Knew he was going to get more.

Fuck, my son is hot.

Tyler smiled genuinely as he moved closer, sliding to Brad’s right opposite Bill and forcing the older human between the two of them.

Bill leaned forward as Tyler settled and licked his long, thick bear tongue across the younger man’s lips before opening his muzzle and thrusting into the human’s mouth. Tyler leaned into the bestial kiss, pinning his father between him and the polar bear as Bill licked and thrust his tongue inside his mouth for a few more moments.

Brad gasped at the duel scents and heavy bodies surrounding him, his own body crying out for release as his cock bobbed up and down, leaking more precum than he had in years.

It was all too much. Too much to think about, too much to consider and work through logically. He cried out and thrust his hips upward, hard.

Tyler pulled back from Bill and panted heavily, glancing down at his dad laid out between them.

“You think he’s ready? Because I’m about to blow on my own if we don’t get started.”

Bill chuckled, “You’ve been a Beastkin less than two days and already you’re acting worse than me. Typical 25-year-olds.”

He looked at the human between them and nodded, leaning down and sniffing his wet nose against Brad’s face before licking out with his tongue and coating the man with light kisses. He stopped and glanced up at Tyler.

“He’s your dad. Wanna do the honors?”

Tyler looked down at his dad and locked eyes with the older man. He’d suffered under his rules and arguments and demands for years now. And then in the span of two weeks, Tyler found himself with the power to share unimaginable pleasure with him, to change him for the better. Did he deserve it?

“Dad... I know this must be weird as hell for you.” Tyler said as he let his hand roam over the soft, lightly-haired body of the human between them. He paused as his hand brushed his dad’s throbbing, leaking shaft before he wrapped his hand around it.

“I gotta admit, I never would’ve considered doing this in my life. But Bill here... he’s convinced me that you and I can get along together better than we would apart. So I’m gonna fuck you, and you’re gonna change. And we’ll all let the past be the past. How’s that sound?”

Brad whimpered with need as he looked up at his son’s face. It was like Tyler had matured into the man he’d always dreamed he would be, and his new features matched his strength and masculinity perfectly. From his strong, broad jaw to his piercing eyes to his thick beard.

He’s beautiful. He’s perfect.

“I... I don’t know what’s going on, Tyler. This is insane but you’re so... you’re so fucking beautiful and I don’t want to lose you.”

Tyler reached down and cupped his dad’s cheek gently as he leaned forward.

“With Coach Bill’s help, you won’t. Now just... enjoy the ride. Things are about to get pretty wild.”

Tyler closed the gap and pressed his lips against his dad’s, sealing their mouths together as he ground his larger body against the human’s. He could feel the need bubbling up inside of himself and his dad, and as he ran his hand up and down his torso, he knew his dad was already starting to change.

With a gasp, Tyler pulled away and grinned over at Bill who took his place, eagerly lapping over Brad’s face with his animal tongue.

Bringing a hand up, Tyler removed an identical bracelet to Bill’s from his wrist and felt his body pulsing and heating up. He growled deep in his throat, letting the magic of his glamour fade away and rush over his body.

Brad felt the bed dip slightly to his right but he couldn’t see anything due to Bill’s muzzle covering most of his face. The lapping tongue of the polar bear filled his mouth and tasted amazing as they swapped saliva. He let the bear work his magic as he heard a deep growl beside him and moments later, felt a clawed hand roaming down his stomach towards his aching dick.

Bill’s lapping tongue removed itself from Brad’s mouth and he could finally see what his son had become.

Sitting next to him on its knees was a giant of a brown bear, just as thickly muscled and powerfully built as the polar bear to his left, and almost as tall. Both bear men looked down at him with an intelligent, weirdly human quality. Their eyes were larger than normal, their faces and muzzles more expressive than a normal bear’s would be. He stared up in wonder at them both.

“Meet the new me, dad,” Tyler said, his voice rich and warm as he spread out his arms and flexed, the powerful, sexy muscles underneath the fur easily showing themselves off.

“F-fuck, you both look so good. I want... I want that. Please. Please give it to me!” Brad said, at his wit’s end as his cock throbbed and pulsed and his body shook with need.

“You’ve already got it, dad. You’re changing just like I was.” Tyler said as he moved off the end of the bed and got down onto his knees, still towering over Brad as he grinned over at him. “We’re just gonna help you along. Coach?”

With a huff, Bill grabbed his thick, black shaft and moaned as he pumped it back and forth in his paw-hand, letting spurts of precum coat the human’s face in front of him. Brad’s tongue automatically lapped out at the thick, clear juices. The man was already addicted to it and Bill was going to take advantage.

Leaning forward on his knees, Bill smeared the tip of his bearcock over Brad’s face, absolutely coating the skin with his precum and letting the smaller man enjoy his first taste of what was to come.

Tyler smirked at Bill’s antics and heavy, needy growls as his dad lapped over the polar bear’s dick. He looked down at the rest of his dad’s body and watched as the sagging skin pulled tauter and tauter, the beer belly he’d sported for over two decades quickly firming up and rounding out with powerful muscles. His thinning, patchy body hair thickened and grew like a jungle right before his eyes. In less than a minute, his dad’s body had changed to that of a musclebound, bearish man in his mid-thirties.

Whatever magic the Beastkin possessed fed directly into Brad’s body and Tyler watched in awe as his attractive, older father gained his youth back in seconds, and his scent began to change with it. The stink of humanity seemed to float away, replaced by the musky, heady scent of a true Beast. Tyler leaned in close to his dad’s thighs, letting his wet nose trail over the thickening muscles underneath the hairy skin until he prodded the leaking shaft sprouting from the human’s crotch.

The scent of his dad’s sex sent him into a rush of aroused need, and he lapped over the thickening, lengthening cock, wanting nothing more than to bring the other man further along into his new body. The feel of his dad’s shaft pulsing against his nose and thick tongue was novel and wonderful, and he couldn’t wait to see how far he’d grow.

Brad was nearly blinded by the pleasure being given to him. His body felt thicker now, but also more powerful. The pain in his back he’d been meaning to get checked out was completely gone, and his bad knee? It was like new again. It was all new, and getting newer as his son lapped away at his dick. He watched with one eye closed as the brown bear man pulled him closer to him, eagerly tonguing the shaft and balls that he’d spawned from.

It was so wrong. So deeply, disturbingly wrong and yet... perfectly right.

The thick cock at his mouth suddenly pushed against his lips and he gagged for a moment until instinct took over and he felt his jaw open wide. He snaked his tongue out and swirled it around the polar bear’s pulsing cockhead, reaching up with his hand to grip the hot shaft and pull it further into his mouth.

Brad felt himself grow and pulse with a newfound need and want and instinct. He was being remade for this. Being made powerful, sexy, and eager—all for his son and his new lover. A growl built in his throat as he swallowed inch after inch of Bill’s massive tool, his mouth widening and lengthening into a muzzle of his own in order to take the impressive length more easily. He felt his tongue growing longer and wider, filling out his new muzzle and wrapping around more and more of the length of cock he was addicted to tasting.

Tyler watched as his dad’s muzzle came in, brown fur matching his own rushing down its length and starting to spread out over his head and neck and shoulders already. His own cock pulsed in time with his dad’s as he licked it over and over, watching as the human’s ears shifted up towards the top of his head. They shifted and grew fur, twitching this way and that until his head was finished its transformation, and a deep, needy growl sounded from his throat.

With a grin, Tyler leaned back slightly and grabbed the bottom of his dad’s tree trunk-like thighs in both of his clawed, padded hands. He pulled his dad to the edge of the bed, much to Bill’s annoyance, and pushed the half-human’s legs up and back, revealing the now heavily furred and muscled backside of his dad. He watched as Bill shuffled unceremoniously back over to Brad until the new bear’s head laid between the polar bear’s monstrous legs.

Bill tilted his head slightly as he looked down at Brad’s beautifully bestial face.

“That’s a handsome mug you got there, Brad. I think it’d look better with my cock shoved down your throat though, wouldn’t you agree?”

“Fuck. Yes.” Brad said with a deep, needy voice. “Give it to me.”

“With pleasure,” Bill replied, moving forward and laying himself overtop of Brad, following the trail of steadily growing fur down his enlarged body. He propped himself up on his padded hands and nestled himself lightly against the still transforming brown bear, feeling a curious tongue lapping at his balls. He reached down and angled his 14-inch cock until he felt Brad’s new muzzle close around it and start to suck it down easily.

He moaned at the sensation, realizing that Brad’s instincts for giving and receiving pleasure had definitely reached their full potential now. He looked forward and his eyes met Tyler’s across the throbbing, heavily leaking cock between Brad’s now fully furred and muscled thighs.

Tyler watched as a furry tube of flesh grew over the base of the brown bear’s shaft, forming a beautiful sheath around it. His dad’s penis grew as he and Bill watched, and without thinking, Tyler grabbed hold of it, lapping his tongue over the hot, deeply red skin.

Bill watched as his student sucked his father’s cock and reveled in their shared debauchery before he moved forward and met Tyler’s muzzle, the two of them sharing a kiss with Brad’s cock lodged fully between their muzzles.

Brad growled and humped his hips, feeling the dueling tongues sliding around his cock as he mashed his new muzzle hard against Bill’s furry crotch. He felt the shaft deep in his throat throbbing and pulsing as he swallowed around it, swirling his larger tongue over every inch as his pleasure grew. Bill’s pendulous balls laid over top of Brad’s new muzzle, their twitching sack adding an exotic layer of sweaty heat near his sensitive nose.

Tyler pulled back from his dad’s huge cock, letting the polar bear eagerly swallow the brown bear’s shaft in the hottest sixty-nine he’d ever seen. Grabbing his dad’s thighs again, he lifted them up and pushed them back, revealing the tight, pulsing pucker now belonging to his daddy bear. He watched as a small, cute tail sprouted just above his backside, wiggling eagerly back and forth like an invitation.

Without pausing, Tyler leaned in and huffed against his dad’s taint, smearing his wet nose up and down the newly furred surface and smelling the fresh pheromones and musk emanating from it. He trailed his nose down, pressing into the tight, virgin hole of his father, and lapped his tongue out against the thick, corded muscles around his rim, tasting the natural heat and scents and arousal bound to that part of his dad’s body.

It filled him with a sense of pride to be taking his father like this, to give him this new experience as he transformed, and Tyler couldn’t help but moan lewdly. He opened his muzzle and pulsed his tongue out, lapping over and over against the hole, wetting the tight, bare skin there until he felt his dad loosen up slightly.

It was all he needed.

He jammed his muzzle against his dad’s pucker and pummeled it with his tongue, punching past the virgin walls keeping him out and filling the hole with his thick, salivating tongue.

Brad froze in shock, feeling his son’s tongue rimming him all at once. No one, not once in his entire life, had ever done this to him and he growled and groaned and huffed against the cock in his throat as his son ate him out so well. The feeling of that tongue sliding into him was unparalleled and wondrous. He felt his hole clench against the fluttering muscle and he practically squealed with delight.

Bill grinned around Brad’s cock as he watched his student eagerly eating out his dad. This is what he’d wanted, and seeing it all come to fruition was nothing short of perfection. Brad’s cock pulsed in his throat and he knew the new bear was edging ever closer towards release, just as he was.

Tyler flicked his tongue in and out, tasting the newly made heat within his dad’s hole before he found the nub of his prostate. His dad went stiff around him before his ass started thrusting back against his face, eager for another touch. Tyler was more than happy to oblige, thrusting his tongue against that same nub harder and harder, lashing it as his dad’s now huge body clenched around his muzzle.

But he knew he wasn’t done yet. He pulled back finally, lapping against the now slightly gaping hole a few times before he stood up and grabbed his own cock. His padded hands added such a nice and varied texture against his shaft, and he wanted to cum just from the sight of his coach and his father sucking each other off in front of him. But instead, he grabbed his dad’s legs one last time and forced them back and apart, revealing that leaking, twitching pucker again.

With the copious amounts of spit and thrusting from his tongue, his dad’s hole was more and ready to accept him. And even without that, the amount of precum streaming down his tip was enough to entirely coat his shaft to the point of self-lubrication. Tyler breathed deeply as he pressed the tip of his thick, 13-inch shaft against his dad’s aching hole.

Brad moaned and let Bill’s cock slip out of his muzzle for a moment, breathing hard.

“Ty... Tyler please, fuck me. Fuck your dad hard, son.”

“Absolutely, daddy bear,” Tyler said as he lined up his cock and pressed forward steadily.

Brad’s hole accepted the slightly flared mushroom head of his son’s cock, and the stretch it caused felt utterly sinful. He moaned and begged for more, his hole filling up and stretching wider as Tyler pushed more and more of himself into the new bear. The younger brown bear felt the tightness surrounding his cock as he thrust forward hard, slipping further and further until, finally, he bottomed out. His dad’s tail wagged with pleasure against the bottom of Tyler’s furred balls while Bill watched with half-lidded eyes as he sucked the cock in front of him.

With a bellow of bestial might, Tyler pulled out and then thrust in hard, slamming his body into his dad and sliding his length all the way into the bear. His balls slapped against his dad’s muscled backside with a soft slap, and he growled as he thrusted again, and then again and again and again, building up speed and gritting his teeth.

Brad cried out, the tip of Bill’s cock dragging along his muzzle and over his chest as he found himself enraptured with the feeling of his son fucking him, taking his virginity, and filling him up with his shaft. He cried and groaned and growled with each new thrust, moving his hips in time with his son’s and feeding his own cock in and out of Bill’s open maw. It slid over and in and out of the polar bear’s muzzle and throbbed and leaked heavily, his balls tightening in their furry sack.

Tyler had built up a steady pace and the tight hold of his dad wrapped around his length seemed to only grow tighter as he fucked into it. He angled his shaft a bit and found his dad’s prostate, nailing his shaft against it over and over and watching the results.

His dad cried out and twitched and clenched around him and he knew they were all close. With a cry of his own, Tyler thrusted up once, twice, and then a final third time as he felt his balls pulse, seed rushing down his shaft and flooding into his dad’s backside. He couldn’t stop himself from moving back and forth, growling with need and release as he pumped into his dad over and over.

Bill felt the pulse of Tyler’s cock against Brad’s hole and he closed his eyes, feeling his own release building. The son fucking his father was too much for him and he felt his black-skinned cock seize and twitch before firing his own volley of potent seed down on Brad’s bear body. It shot out in blasts of thick white cum, coating the new bear’s furry muzzle and chest, and soaking into the comforter beneath them all. He huffed around the thick shaft in his muzzle, eager for Brad’s own release to complete their romp.

Brad felt his son pulsing and shooting inside him and a warmth like nothing else filled his needy hole. Tyler’s cum surrounded his cock as it thrusted back and forth inside him. That sensation alone would’ve been enough to send him off the deep end of his impending orgasm, but the sensation of Bill’s massive pole shooting cum over his muzzle and chest was all he needed before blowing his own load.

As Bill’s cum coated his muzzle, Brad growled with raw need and arousal, feeling his hole clench tighter around his son’s dick as he felt his newly made bear seed shooting up his shaft and into Bill’s waiting muzzle.

He thrusted his hips in time with Tyler’s and pushed his cock deeper into Bill’s throat, sending blast after blast of potent cum into the polar bear’s gullet. The three of them road out their orgasms together, finally coming to rest against one another after nearly a full minute of cumming.

The bed was soaked. Brad’s muzzle and chest were absolutely coated with Bill’s cum which he eagerly scooped up and licked off of his clawed hand, loving the salty sweet taste of it on his tongue. Bill himself was still lapping over Brad’s cock as it spurted the last few blasts of cum over his muzzle, coating his nose and tongue with its delightfully masculine taste and smell.

Tyler was breathing hard, his body shaking at the sheer force of his orgasm. He’d just fucked his own dad and loved it. And as he pulled out of him, he watched as his cum began to leak steadily from the extremely well-used hole.

Before he could even think, he was kneeling down and thrusting his tongue against the hole, lapping up his own cum as it leaked out and swallowing it eagerly. The taste was as delicious as it had been before, but knowing that it was coming out of his dad’s hole was enough to cause his cock to spurt another volley of cum against the bedside.

Brad moaned as his son lapped at his leaking backside, feeling Bill slip his muzzle off of his spent cock and playing lightly with his overly sensitive balls. He hadn’t planned on the day ending like this but... he couldn’t think of a better way to be reunited with his son.

Bill looked down at Brad and then back to Tyler, who was still lapping against his dad’s hole.

“I’d say this was a big success. I do love bringing families back together again.”

Brad chuckled deeply and clenched his hole around his son’s tongue, “I—aah fuck, Ty—I’d agree with that. But wh-what do we do now, other than clean up?”

Tyler finally pulled away from the hole he’d just fucked, his muzzle coated in his own cum as he laid it over top of his dad’s new bearcock.

“Well, Coach and I had an idea about that....”

It was a bright Saturday afternoon at the gym and somewhere around 30 men were all working at various stations throughout the large space. Bill stood at the front desk, with Bobby sitting in the chair next to him, idly groping himself as he watched the man closest to him running on the treadmill.

“I’d say business is booming about now!” Bobby said as he grinned up at Bill who winked back at him.

“Among other things, yeah. I’d agree.” Bill eyed the pair of men in the back of the gym, both of them enormously muscled and hairy.

Tyler and Brad always worked out so well together, it was a wonder more people didn’t just stand by and watch them. They were so in sync with each other now, and it truly was a sight to behold.

Tyler was spotting for his dad as he laid at the bench press, pushing easily 400lbs of weight up and down, over and over. Tyler stood up, knowing his dad could handle so much more than that but needed to keep up appearances for the most part. He glanced around, covertly checking to make sure no one was watching before he knelt down and kissed his dad, fishing a hand down and tweaking one of his nipples.

Brad took the surprise kiss in stride, pumping the bar up and down as he swirled his tongue against his son’s, and felt his member jump and throb in his shorts. Tyler reached into his own pants and pulled at his cock, moaning softly as he got off on their extremely public display of... affection.

Bill nodded with a wide smile and Bobby chuckled at the sight, knowing that their mingling scents would cover any accidental incidents any of their current patrons might happen to see if they looked back. That was the beauty of owning the gym along with the benefit of their Beastkin forms. Their scent was everywhere now.

One of the front doors swung open and a new, fresh-faced young man walked through. He looked to be around Tyler’s age, maybe slightly younger. He was short and chubby but looked determined and ready for a change.

“H-hey there, are you guys taking new clients for personal trainers?”

The man seemed a bit shy but his eyes were hopeful. Brad nodded and smiled down at him.

“Of course! We’re always ready to help anyone looking to make a change.”

“Oh, awesome!” The man nodded eagerly with a shy smile but then sniffed at something. He tilted his head in confusion.

“Hey, uh, is there a weird smell in here? I just... I felt kinda dizzy for a second.”

Brad shook his head and walked around the desk, his ample package clearly throbbing with desire in his shorts as he answered.

“Nah, that’s just the smell of men becoming who they wanna be, kid. My name’s Bill. Bill Hayes. Your new coaches are all the way in the back. Let’s get started!”

Vote on this story

Ladder of the heavens by Ziel "Someone suggested that I do a story with piercings and jewelry that caused growth in the owner. I made use of some other suggestions as well so this story features a wide array of kinks including muscle/dick growth and even a touch of shrinkage, and there’s even a cute little *spoiler* with a *spoiler**spoiler*" 11k words Added May 2015 20k views 5.0 stars (4 votes) No comments yet •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Pointy Ears•Size Decrease

The new associate by Tym Greene Zhu is looking forward to his first day a new architectural firm, sure the way he grows—and makes other people grow just from being around him—will make things very interesting. 3 parts 13k words Added May 2015 Updated 12 Dec 2020 42k views 5.0 stars (2 votes) No comments yet •Cock Growth•Huge Cock•Hyper Cock•Muscle Growth•Muscle/Strength•Public Nudity•Size Increase•Tongue Growth•Father/Son•Anthro/Furry •M/M•M/M/M

Side effects by Braun1 7 parts 56k words (#66) Added Feb 1997 59k views 5.0 stars (6 votes) No comments yet •Always Hard•Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase

Stuff in the cellar by Charles Westfall Richard is already good-looking and abnormally hung when he discovers some alien equipment in the cellar of his new house—including a vat of goo that transforms him into someone even hotter and more hung. And there’s no way Richard’s keeping his new gifts to himself. 4 parts 15k words Added Jul 2002 26k views 5.0 stars (10 votes) No comments yet •Cock Growth•Huge Cock•Hyper Cum•Muscle Growth•Muscle/Strength•Pointy Ears•Size Increase •t/t•t/t/t

The trainer by Also Known As Needing a new trainer, Thomas finds onewho can push him to the next level, and then some. 7 parts 22k words Added Jan 2014 29k views 5.0 stars (15 votes) No comments yet •Always Hard•Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Size Increase •M/M

Transform: Phone sex by Also Known As Converting a guy to be one of the Transformed is easy enough in person. But what about over the phone? 5,573 words Added Jan 2014 16k views 5.0 stars (7 votes) No comments yet •Cock Growth•Huge Cock•Multicock•Muscle Growth•Muscle/Strength•Size Increase•Infectious •M/M•M/M/M

Twinning: The college years by BRK At college, Will attracts the attention of a sexy, Irish hockey player who pushes all Will’s buttons—but now that he’s in this new world Will isn’t sure he can share all of himself with his slowly growing admirer. 8 parts 37k words Added Mar 2017 Updated 9 Oct 2021 30k views 5.0 stars (11 votes) No comments yet •Always Hard•Cock Growth•Huge Cock•Hyper Cock•Self-suck•Extra digits•Multi-abs•Multicock•Multitongue•Replication•Muscle Growth•Muscle/Strength•Always Shirtless•Getting Taller•Size Increase•Tongue Growth•Selfcest•St. Patrick’s Day •M/M•M/M/M/...

X-Dream Makeover: Billy Farrow’s night out by Cris Kane A pop star is given a night of anonymity to explore San Francisco in a hunky new body, thanks to Mr. Lee’s magic. 3 parts 14k words Added Oct 2018 9,502 views 5.0 stars (6 votes) No comments yet •Cock Growth•Huge Cock•Muscle Growth•Muscle/Strength•Transformation•Getting Taller•Race/Ethnicity Change•Hair Growth/Getting Hairy •M/M•M/M/M