ultram0th - UltraM0th's TF Stories
UltraM0th's TF Stories

🔞Here's some stories and pics from around the Internet that involve TF, either made by others or myself. (If you see your work on here and would like it removed, please message me and I will do so immediately!) 🔞Asks/Requests are currently paused.

309 posts

I Am Fond Of You Derek Turning Into A More Muscular And/or Hairy Guy If That's The Kind Of Request You

I am fond of you Derek turning into a more muscular and/or hairy guy if that's the kind of request you were looking for? Love your stuff though regardless it's hot and well done.

I Am Fond Of You Derek Turning Into A More Muscular And/or Hairy Guy If That's The Kind Of Request You

It all began the morning after Derek had assumed his new Alpha title. Stiles had slept over, cuddling up next to his boyfriend when he'd jolted up awake as soon as his hands had brushed up against something unfamiliar.

"What...?" he trailed off, his eyes wide at his boyfriend's chest that he usually used as a pillow.

"Hm?" Derek sleepily yawned, wondering what his smaller boyfriend was panicking about.

"Der," Stiles mused, "your chest. It's... really hairy."

The werewolf cocked his eyebrow up at his boyfriend, running a hand over his pecs. Sure enough, the werewolf's previously smooth chest was now covered with black hairs. They spread out over his pecs, running down across his stomach before connecting to his bush. The hairs curled and looked thick enough to where one might've guessed that Derek had always been rather hirsute. His pert nipples poked through the dusting of hairs, looking hard. Plus, Stiles hadn't noticed it initially, but Derek's square jaw was also covered by a thick beard that looked like it'd take weeks for a guy to grow... not just a few hours.

Derek's eyebrows knitted together as he ran his hands over his hairy chest, his heart starting to race. However, just as soon as the worry began to trickle in, it disappeared.

His face smoothed out and he yawned loudly, gently placing a hand on Stiles's head to pat it back down to his now hairy chest.

Stiles wanted to argue, confused over both his boyfriend's sudden change and different attitude. He knew that Derek should've been freaking out and wondering what was happening to him, but instead his boyfriend acted like everything was normal.

He tried to ignore it, but as Stiles rested his head back down onto Derek's chest, something about the way he had to crane his neck alerted the human to something else.

"Derek!" he gasped loudly, sitting back up and tearing the covers away from his boyfriend. "You're... bigger!"

His boyfriend had always had a pretty toned physique, but now it looked as if Derek's chiseled pecs were now significantly larger and much more plump than they should've been. Without the covers over him, Stiles could also see that it wasn't just Derek's chest that had grown larger. His boyfriend's arms seemed to have doubled in size, looking thick and powerful as he lied on the bed. Even his legs were larger, his quads pressing tightly together and shoving his bulge (which seemed to stretch out his underwear more than usual) out in front.

And of course, every single larger muscle was covered in dark, manly hair.

"Stiles," Derek groaned, going so far as to roll his eyes, "everything is fine. I feel fine, there's nothing to worry about--"

He was interrupted when his phone alarm beeped, letting him know that he had to get out of bed, making him frown.

With a groan, Derek rolled his hairy bulk out of bed, the frame squeaking much more than it usually did as he moved. His heavy footsteps thudded over towards the dresser. As he walked, Derek noted how odd it felt to have his thighs rolling over one another, and how awkward it was to have his muscular arms resting at a ninety degree angle atop his flaring lats.

Stiles watched in disbelief as Derek nonchalantly attempted to get dressed in his normal clothes.

"Damn," Derek growled as he examined himself in the mirror. With his new bulk, none of his clothes fit him anymore. He couldn't get any of his jeans up past his massive quads, having to throw on a large pair of sweats that used to be baggy on him. Now, the material was skintight, showing off his meaty glutes and enormous package in front. The t-shirt he'd grabbed barely wrapped around his torso, ending above his navel. It had torn significantly across his large muscletits, showing off the hairy cleavage that he now possessed. There were two large bumps on the front from where his larger, nubby nipples poked against the thin cotton.

Stiles watched as Derek paled in the mirror, his beard-framed mouth opening like he was about to voice his concerns, but again, Derek seemed to instantly relax. He shrugged his broadened shoulders.

"I think my clothes shrunk in the wash," he chuckled, gesturing down at his hairy muscles.

"Derek!" Stiles cried, throwing his hands up in the air. "It's not the wash, it's you! You've turned into a hairy bodybuilder!" As crazy (or crazier) as it seemed, Stiles could've sworn that he'd watched Derek's hairy pecs balloon out a few more inches in those few seconds.

Derek took one last look at himself in the mirror, seeing how large and imposing he looked with his incredibly large, round muscles and the thick, masculine hair that coated them. He couldn't help but smirk back at his shocked boyfriend, flexing a large, hairy bicep. As his massive muscle bulged to the size of a bowling ball, the tight sleeves of the t-shirt burst apart.

"I'm not a bodybuilder," Derek smiled at his boyfriend, giving him a playful wink. "I'm the Alpha."

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More Posts from Ultram0th

1 year ago

Hey I've always fantasized about having a big belly, but I can't seem to gain weight no matter how hard I try. Is there anything you can do for me?

Hey I've Always Fantasized About Having A Big Belly, But I Can't Seem To Gain Weight No Matter How Hard

How about we try this spell?

No matter what shirt you wear, your belly will always outgrow it.

Now, let's see the results...

You were at home getting ready to head to the gym when you grabbed one of your regular workout t-shirts. It was a typical shirt that clung to your body and was made out of material that was thin enough to help your body cool off.

The second you tugged your shirt on, you felt your stomach gurgle a little bit as if you were hungry. However, your eyes widened when your gut shuddered and began to push outwards away from you. Your abs disappeared underneath a growing layer of fat, becoming obscured before your gut rounded out and began to jut out from your torso. The growth continued until your tight(er) shirt rode up higher and your belly button was exposed-- the shirt officially not fitting you anymore.

As soon as a large swath of your inflated gut was exposed, the growth stopped.

Your hands explored your new mass that was attached to you in wonder, feeling it squish and jiggle with every awkward step you took. You tore the too small shirt away from your bigger form, noting how warped your profile now was. Whereas you used to be trim and skinny, you now possessed a sizable beer belly. Your pecs had even puffed up slightly and became a little saggy. And when you looked harder in the mirror, you could see that your face was a little rounder too.

Immediately, you were so excited to show off your larger form to all of your gym buddies, looking forward to having them rub your big belly. You rushed back over to your closet, feeling your larger gut jiggle with every footstep.

You squeezed into another shirt to head out and--

Your belly shuddered and began to inflate again, growing even larger and rounder until it jutted out of your t-shirt again. Your gut was now so large that it looked like you had a yoga ball in front of you, and your shirt was so small that it resembled a crop top that was specifically designed for your belly to hang out.

The specifics of the spell rang through your head again, and you knew that if you to put on a larger shirt, your belly would continue to grow until you couldn't fit in that article of clothing anymore.

You eagerly began to tear through your closet, searching for the largest shirt that you could find so that you could have the biggest belly ever!


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1 year ago
Someone Snuck Some Growth Formula Into Daddy's Morning Coffee. He's A Little Annoyed That None Of His

Someone snuck some growth formula into Daddy's morning coffee. He's a little annoyed that none of his shirts fit anymore, but he'll get over it.


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1 year ago

How about one where a frat boy turns into a lazy, slobby stereotypically dad. Maybe muscular but with a beer belly and barking out orders to his old frat bros. But instead of bringing him a beer, it's to suck his massive cock while he watches sports or Nascar.

How About One Where A Frat Boy Turns Into A Lazy, Slobby Stereotypically Dad. Maybe Muscular But With
How About One Where A Frat Boy Turns Into A Lazy, Slobby Stereotypically Dad. Maybe Muscular But With

When Coach told all the frat boys at the start of the year that he was giving up his position, most of them had scrambled for the opportunity to be the proverbial "Top Dog". The older man had commanded the respect of the numerous frat bros, each one looking up to the older man as one of their own-- and he must have been back in his prime. However, after years of no longer playing sports and drinking, the older man had gained a big belly and a layer of fat that covered his impressive musculature. Instead of looking like a strict athlete, Coach looked like a burly musclebear.

And when he'd announced that Trevor, the newest recruit on the baseball team, was going to be taking his place, the young jock had been ecstatic.

Trevor was brand new to the university and the fraternity, and although he was the smallest, he still had rather sizable muscles. The stud opted to go for a toned aesthetic, his trimmed bulk looking like it was ripped out of an Abercrombie & Fitch ad.

Some of the other jocks muttered under their breath, jealous that they weren't getting picked. Whereas others were fighting back laughs because Trevor was still brand new, and therefore didn't realize all that the position entailed.

Trevor proudly stood before the rest of the fraternity, puffing out his chest with pride. Coach took off his baseball cap to place it upon Trevor's head.

The exact second Coach's hat was placed onto Trevor-- BWOMPH!

Trevor gasped as soon as he felt a massive heaviness on his chest. Fearing some sort of medical emergency, the young jock was horrified when he looked down and saw that instead of his chiseled pecs and abs, he stared down at large muscletits and a big gut.

The rest of the jocks cheered as they watched the new Coach explore his inflated body with shaky hands. Where a fit, young jock had stood just moments before was now a beefy bear of a stud. He still had muscles, but now they were concealed by a thick layer of fat. His pecs that were capped with nubby nipples still protruded off of his chest, but they also drooped slightly and rested atop his cresting musclegut that hid away his lengthened, hardening cock. As Trevor explored his new body, he saw that he was covered in manly hair, and he looked over a beefy shoulder to stare in the mirror on the wall, paling when he saw an older man staring back at him. He had a goatee and slight wrinkles near his eyes, complimenting his new daddy look.

He looked just like Coach: a big, burly musclebear.

"Wh-what happened to me?" the former jock panicked, bristling at his much deeper voice.

He turned back to ask Coach what had happened to him, only to jerk back in shock as a trim, young jock with a chiseled six pack stood in his place instead.

The toned jock playfully pinched Trevor's new belly, making the new daddy blush. "I'll miss that," he teased. "But now it's your turn to be Coach. We alternate from year to year, so enjoy it while it lasts."

The rest of the frat bros cheered as Trevor struggled to take the cursed hat off, but it was seemingly superglued to his head, leaving him trapped as a muscle daddy coach for the rest of the year.

-- -- --

Over the next couple of weeks, Trevor managed to adapt to his new role as Coach. At first, it was a struggle trying to squeeze his new furry bulk into clothes since he'd gained at least sixty pounds of muscle and fat. And he was finding that his new daddy body was CONSTANTLY horny.

Never before had Trevor ever had a gay thought in his life, but he was finding it incredibly hard to not drool over all of his jock frat brothers. Their toned muscles and youthful bodies made his enlarged cock surge, throbbing with want. His hairy bulk was also sensitive, and he could get himself off just by worshipping his hairy muscles; and his enlarged nubby nipples were hardwired straight to his cock.

However, Trevor was surprisingly happy to find out that his new body also offered him something else.

"Hey, Jockbro, get me another beer!" Trevor bellowed in his deep voice from his spot on the sofa. He was wearing a simple jockstrap that was stretched to bursting as it struggled to contain his massive cock. He opted to go shirtless, shuddering a little as the air from the A/C blew over his hard nipples.

One of his frat brothers immediately scampered towards the fridge, not even bothering to hide the fact that getting ordered around by the musclebear made his rock hard. He grabbed a beer off the bottom shelf and hurried back to the living room, his hard cock tenting out his gym shorts.

No matter what order he gave, the new Coach was delighted to discover that the jocks in the frat had to obey. Even better, was that it turned them on to be bossed around by such a manly daddy such as himself.

"Here ya go, Daddy," the jock gushed as he handed the new Coach his beer, his cock throbbing and leaking precum into his shorts.

Trevor took it and chugged it, letting out a loud belch. He then gestured down at his large bulge, his own cock starting to slip out of the small confines of his jockstrap. "Go ahead and take care of that," he ordered.

The frat bro dropped to his knees and immediately fished Trevor's daddy cock out of his jockstrap, eagerly slurping it up. He moaned loudly as he sucked the new Coach off.

Coach Trevor moaned loudly, his deep voice echoing off the walls of the frat house. He loved his new position as Coach, and he knew deep down that this was going to be the best year at college ever.


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1 year ago
This Hunky Jock Tries Out His Gym's New Blueberry Flavored Protein Shake. But Instead Of His Entire Body

This hunky jock tries out his gym's new blueberry flavored protein shake. But instead of his entire body inflating, just his butt gets rounder and much, much bigger...


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1 year ago
This Stud's A Little Annoyed Because The Gym Employee At The Front Desk Told Him That If His Muscletits

This stud's a little annoyed because the gym employee at the front desk told him that if his muscletits get any bigger, he's going to have to wear a bra.

(Just something I did while trying to work on shadows)


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