Jump to content
  • Announcements

    • CMiller

      Help contribute, donate via PayPal or join with a monthly Patreon contribution.   01/01/17

      To help raise funds I've introduced a monthly contribution option called Pateron. This service allows you to pledge a monthly contribution plus allows me to offer you some rewards for your contribution. If you have any questions you may PM me. If you'd like to make that contribution please click on the image below:      
    • CMiller

      NEWS: Discord Server & Clubs (aka Groups) are back!   08/19/17

      Hello everyone I'm back with a couple big updates! Firstly we now have a Discord server, this is a real-time chat messaging client you can run on your phone, desktop, or anywhere. It's a pretty powerful desktop application that enables people to chat together, and with multiple channels you can find people interested in what you're interested in. If you don't already have a Discord account it's pretty easy to get one, just click the following invite link to get started: https://discord.gg/Ahzu9jC Secondly I'm proud to announce the return of Groups, it's been renamed to Clubs and is now available here: https://muscle-growth.org/clubs/. This system is entirely user generated and allows users to create groups of their own based on any subject they want. Go ahead and try it now, visit the link above to get started if you want to create or join a group!   As always thank you to all of our donators and Patreon contributors who keep the forums going! 

Enhancements (Pts 1-4)

Recommended Posts

Enhancements: Part One
The Beginning

It had been six months since Chris's life had changed forever. A nineteen year old college student, Chris's body had always been unremarkable. He was a wiry, average-height boy, his pasty, acne littered skin stretched over his bony, muscleless figure. He was mostly hairless, save for the few stray hairs poking out of his chest and nipples and his pubic hair, which he kept mostly trimmed. His butt wasn't anything special, either; although it wasn't flat, it was nothing compared to the asses on the porn stars that Chris loved jerking off to. It was on that day, 6 months ago, in fact, that Chris had sat in his desk chair, beating off and watching porn, when it happened. He had just returned from a short jog. It wasn't that Chris hadn't been trying to get physically fit- it was just that his fast metabolism and poor eating and exercise habits needed to be overcome in order to see real progress. He wasn't bad looking, either - just altogether average. Chris thought maybe if he could get a little more muscle onto his frame, he'd be a catch. 

But on that day, after his run, sweaty and a little horny, he returned to his single dorm room and decided to watch some porn and have a little private fun. He shut his dorm door, which locked automatically, and pulled off his mesh blue athletic shorts and his sweat through boxers. In exchange, he put on his white Bike No. 10 jockstrap - too chicken yet to wear it out on a run, but wanting to feel how his ass and cock felt nestled in the tight straps and pouch. After sitting down, he opened up his laptop and grabbed a bottle of lube, pulling up his favorite porn video and beginning to rub at his crotch through the knit fabric of the jockstrap. As he dreamed of being as big and muscled as the studs he was watching suck and fuck on the screen, he slid the jockstrap off, lubing up his 6" cock, beginning to stroke. Moans and groans of intense pleasure filled his ears as his headphones transmitted the sounds of sex from the porn video. Chris took his jockstrap up his face, gently inhaling his own musky scent, imagining instead that his own jock belonged to one of the muscled boys from down the hall. 

Through this blissful fantasy, Chris didn't realize he was ignoring the loud knocks on his heavy dorm room door. It was only after he decided to change videos - he wanted to look for something to satisfy his fantasy of getting fucked in a locker room - that he heard the loud knocking and shouting from the hall. "C'mon man, I know you're in there, I saw you just got back from your run," came the voice from the hall, accompanied by more loud knocks. "I really, really need to talk to you."

Chris signed, recognizing the voice. It was Evan, a guy from down the hall. He pulled his earbuds out, looked down at his lubed up erection, back to the computer screen, and finally at the door. "Can it wait?" he hollered. "I'm in the middle of something."

"No man, please! I'm having a crisis here."

Chris sighed. Evan was a close friend, maybe even his closest; he wanted to know what was the matter. He quickly pulled on his jockstrap and shorts, wiped off his hands as best he could, and walked over to the door, his erection quickly subsiding. He opened the door, shirtless, to a similarly shirtless Evan.

"Come in, then," he motioned to his hallmate.

Evan did, then sat down on Chris's black futon, which was positioned in the middle of the tiny room, facing the 32" LCD that Chris had atop his dressers on one side of the room. His lofted bed and desk were on the opposite end of the room, against the far wall, and behind the futon. Evan leaned back, spreading out on the futon. Unlike Chris, he was a muscular guy, with nice, beefy pecs and thick biceps, outstretched across the back of the futon. He too, was mostly hairless, save for a few curls of chest hair and thick tufts of armpit hair, which Chris could easily see due to Evan's provocative pose. All in all, Evan was about 6', maybe about 185 lbs. It was he who Chris had been trying to get workout tips from, although their schedules had not really lined up much to be able to go workout together. Evan was straight, much to Chris's dismay- and Evan knew that Chris was attracted to him, as Chris was the first person he had come out to, back at the end of freshman year.

But it was sophomore year now, a full summer behind them to clear the awkwardness of that conversation back in May, a full summer for the unrequited advances of Chris to fade in his mind. If you asked Chris, he would tell you that he didn't have feelings for Evan any more, but deep down, he knew that he was still deeply infatuated with him. And now, on this late September Saturday afternoon, Chris groaned, "So what's wrong."

"Did I interrupt you beating off?" asked Evan bluntly. Chris sighed and pressed the question. "What. Is. Your. Crisis."

Evan looked up at his friend. "Well. You being the expert on gay things and all..." He looked up at Chris, who was until these words sweaty and annoyed. "I need advice."

Chris raised an eyebrow. He had gotten his hopes on Evan misinterpreting signs like this before and he wasn't about to let it happen again. Evan, on the other hand, looked like was going to throw up. He didn't know how to interrupt the feelings he was having, let alone tell Chris, a guy whom he had upset deeply for not being gay, this new development in his sexuality.

"Well," Evan said, gulping. "I was trying to hook up with this girl, Ashley, last night over at Sig." Chris rolled his eyes. Sig was a frat they had gone and partied at a few times as freshmen, taking advantage of the free booze offered to freshmen the brothers thought might rush. Chris and Evan did not, and Chris had not been back since. Evan, on the other hand, had friends in the frat from high school. "And it was going great," he continued. "Until things started getting, well, serious. I just couldn't 'do' anything! I mean, it was like I wasn't attracted to her, at all. Like suddenly it clicked that I wasn't doing this because I thought she was attractive, but because I felt social pressure!"

"So you had whiskey dick, big deal," retorted Chris, his arms folded. "You've gotten off with girls before, haven't you?"

"No, it was more than that. I wasn't even that drunk. And no, if you must know, I have not gotten more than a BJ from a girl before." This surprised Chris. Really, for all that talk, Evan was a virgin?

"So what do you need me for?" Chris groaned, thinking back to the porn he was watching and how much he'd so rather be masturbating.

"Well... this morning I was really thinking about it. So I tried to jerk off. I pulled up all the porn I usually watch. And I realized that all of it had really, really good looking dudes in them. I mean, big, muscley guys. I think I've been jerking off to them all along."

Chris sighed. He really, really could not let himself be Evan's experiment. After all the strife and sadness he went through the last time, when he came out to Evan, he couldn't do it again.

"I know, I know what you're thinking," said Evan. "But this is different. Just now, I pulled up some actual gay porn. And Chris, it was hot. Like, crazy hot."

Chris's cock stiffened a little to hearing Evan say this. But he knew better. "So you thought you'd come over to me, who you know wants your hot bod, to see how real these feelings are."

This whole time, Chris's computer had still been playing the porn he had been watching, but just now, it must have reached close to the end, as the quiet tiny sounds of men screaming sounds of intense pleasure could be detected, despite being played through tiny Apple earbuds still plugged into the computer.

"Go on then, bring that over here," Evan said. "I'll show you."

By this point, Chris was too horny to protest or keep his guard up. This was a real, actual chance to see Evan, not just naked, but jerking off? He grabbed the laptop, putting it down on the floor in front of them.

Evan pulled down his own shorts, revealing his thick 6.5" cock. He lubed it up, looking over at Chris. Evan was hard as a rock. "Damn, this is hot," he moaned. 

The two spent the afternoon jerking off, kissing, and sucking each other off. That fateful afternoon was the beginning of their relationship. A few weeks later, they would explore each other further, Chris and Evan losing their virginity together, as Chris rode and bounced on Evan's thick member. And now, six months since Evan learned his true sexuality, the two boys were going to take their relationship to the next level.


It was a frigid February Friday morning. Evan and Chris had driven in to the city, taking advantage of their long 4 day winter weekend, to celebrate this milestone in their relationship. After parking the car in a large garage, the two boys walked out into the quiet streets of the city gayboorhood and approached their destination. They looked up at the sign of the nondescript shop front. In blue block letters, it read "Andro's Men's Clinic". In the window, a small sign read "Enhancements available here!". 

"This is the place," Chris breathed, pushing the door open, leading him and his boyfriend inside.






  • Like 2
  • Upvote 20

Share this post

Link to post
Share on other sites

Enhancements: Part Two
The Lab

By now, mostly everyone had known about Andro's; everyone who was gay, that is. Originally, it was one of those gay bathhouses - a place for men to go and hookup. But a few years ago, Andro's opened up a "clinic". The clinic had gained a reputation as an experience on a whole other level from the bathhouse. Not only could you find hookups and sex, it was said that clinic goers could have their bodies modified, enhanced, to insane physical levels, guaranteed to provide a next-level sexual experience. 

Chris had known all this when he suggested to Evan that they celebrate their relationship with a little bit of extra naughty fun, but he did not know exactly what went on in the clinic. After some convincing, Evan agreed. Although Chris had put on a little muscle since they began dating months ago, Evan had a fantasy of having sex with someone a little more muscular. The boys walked into the sterile waiting room and walked right up to the counter.

The waiting room was empty and resembled a standard doctor's office waiting room. A short male receptionist in dark blue scrubs sat behind the desk. "Uh, hi," stammered Chris. "We're here for the... enhancement program?"

In a deeply annoyed, grating voice, the receptionist pointed to a sign atop the counter. "No appointment, no enhancements. We're very busy and popular, you see, and we can't just accomodat-"

"But we have an appointment!" Evan exclaimed, not wanting to be sent away. "We called... it should be under Stevens, Evan Stevens." 

"Well... alright, Mr. Stevens. It looks like you do have an appointment for one of our private sessions for two." The receptionist stood up, turned around, rifling through a filing cabinet.

"If you're ready to start the process now, fill out these forms and we'll get you back here for the consultation." He handed out two clipboards to the boys, a packet of papers already clasped in each. "Just some standard paperwork," the receptionist explained. "Medical history, liability release, and so on. And there is the matter of payment..."

Evan looked over at Chris. This wasn't a cheap deal, a private session at the city's premiere male sex club. But the two had saved up some money for this occasion. Chris pulled out an envelope from his inner jacket pocket, handing over several crisp bills to the receptionist. "Already, you're all set then. Fill out those forms, bring 'em up, and we can get started. One thing I want to warn you, though - don't get too excited yet. You're still a little ways away from the main event. And we've had 'issues' with customers getting a little too excited, if you get what I mean."

"Got it. No boners in the waiting room," Evan beamed.

The two took their clipboards and started filling them with information. The first page was a boring bit of information - name, date of birth, emergency contract, medical allergies, and the like. The next was filled with tiny, hard to read text - Evan and Chris correctly assumed it was a bunch of legal mumbo jumbo that said they couldn't sue Andros for anything. They skipped to the end and signed. The last form was the most interesting. "Sexual interests and enhancement desires" it said, in big block letters on top. On the next line, it read- "Private sessions - consult your partner(s) while filling out."

"Alright," Chris said. "This is where we write what we want."

He checked "Versatile" on the top of the page, the first option - and Evan did the same. Reading the options, he was starting to get a little horny already, just thinking about the changes their bodies would be undergoing very soon. "So, muscles for me," he said, filling in the descriptions of how much he wanted his muscles to grow next to each body part group. 'Large', he underlined next to "pecs", thinking of how much he would like to have beefy pecs like his boyfriend. "And you want a little muscle growth too, right?" Evan nodded, circling "minor growth" next to the muscle positions. Next, they decided on body hair, Chris circling a picture of a torso with light dusting of body hair across the pecs and a thick trail of hair extending from the top of the crotch to the belly button. Evan selected the picture two further down and one from the most extreme option - thick tufts of hair between the grooves of his muscles, and a light coat of hair across the rest of his chest and body. "Fuck yeah," Evan said, he too starting to get horny from the thought of looking like the cartoon pictured men on the page.

Next was cock, balls, and ass - each boy agreed they wanted another inch added to their cocks and some extra girth, too. Chris selected to have some extra growth to his balls, and Evan elected something called "ass inflation- perfect for those desiring a nice bubble butt". 

At the bottom of the page was a large blank box labeled "Additional options - technician use only."

"Well, I guess we're done," Chris said. He grabbed Evan's clipboard and brought both up to the receptionist, who took the forms apart, filing the legal releases away, checking the information on the first form was correct, and then handing the 'sex option' pages back to Chris. "Come with me," he said, opening the door next to the counter and beckoning Evan forward.

The two boys slipped behind the door, into a long corridor with several rooms on each side, and a heavy steel door at the end.

"In here," he said, pushing open one of the smaller room doors on the right side of the hall. A small plaque was labeled "Consultation Room #3". 

Chris and Evan walked inside, sitting down in what resembled a normal doctor's examination room, complete with old magazines and a pink vinyl chair covered with paper for hygiene. "A tech will be with you soon." The receptionist closed the door.

"Fuck, I'm so excited," stated Evan, grabbing Chris's hand tightly. "We're going to be so hot."

"I'm excited too, baby, but just try to relax. And remember, it is just temporary."

A few minutes, but what felt like hours, later, there was a small knock on the door and it immediately opened. A tall bearded doctor came into the room. "Hello, boys," he said. "Chris... and Evan! My name is Dr. Cross." He shook their hands.

"We're just about ready to get you two boys started, as I'm sure you're very excited, but we need to quickly go over your choices here and just let you know exactly how this works."

They nodded, and Dr. Cross continued. He began reading off the options to the boys, confirming their choices and clarifying their desires, in a few cases. "And so you know, it is a baseline that you boys will have quite a bit more libido and quite a bit more ejaculation for these changes. You will... be supercharged." He grinned at the boys, who were starting to tent their shorts with their erections.

"Now then. We want to make this experience super special, so I want to make you each aware of some special, experimental changes we've made available. To do this, I was thinking that each of you could tell me about any fetishes or deep desires you might have, in private?"

This was a strange request, but the idea of some special enhancement was especially tantalizing to the boys, so they agreed. Taking turns, Evan or Chris went out in the hall while the other had a private discussion with Dr. Cross. After both had their change, Dr. Cross finished scribbling his notes in the blank box on the bottom of their forms. "All right boys, well I think there's something we can work with that you'll both enjoy." 

"Follow me, please, we're ready to get started."

The boys got up and left the consultation room, following Dr. Cross to the steel door at the end of the hall. 

The doctor typed a few keys on the security pad, which beeped. A green LED flashed to life and the heavy doors began to budge open. Cross led the boys through, into another corridor, this time with larger ceilings and thicker steel doors on each room. He approached a room with a plaque "#10", keyed in another code, and the door opened.

This room was quite different from the consultation room. It was larger, with two expensive looking chairs at the far wall, facing a mirror, which covered the same wall as the door they just walked through. Two technicians followed Dr. Cross in, who shared his notes with them. "Have fun, boys," he said, leaving the room.

"Alright boys," said the techs. "We need you completely naked, please." The boys complied, revealing their half erect cocks as they threw their discarded underwear to the side of the room. 

Each technician dealt with Evan and Chris separately. They each stood in front of the chairs as the technicians read the spec sheets, pressing a few complicated looking controls on the arm of the chair. Above each chair, panels in the ceiling opened, releasing several wires with electrical leads at the end. The technicians carefully began attaching the leads to Evan and Chris, some to the abs, arms, pits, calves, pecs, and shoulders. "These are for muscle growth," the techs explained. "And also for your vital signs."

A few button presses later, larger panels opened from the ceiling above both chairs. This time, two 1/2" diameter tubes lowered in front of each chair. At the end was a complicated looking mechanism which both resembled a pump and a suction cup. The techs pressed the end of one tube to each other boy's nipples. "These are for pec growth and for some of your special modifications," the tech explained. "It will feel a little tight and you might feel a pinch..." Just as he finished his sentence, Evan felt a thwoop of suction followed by a pinch as it felt like the ends of the tubes dug into his flesh. As he looked at himself in the mirror, he felt like he was in a science fiction movie; dozens of wires connected to his body, and these bizarre thick tubes now tightly affixed to his nipples. Still, he felt horny, and kinky, ready for the changes that were to come. He looked over at Chris and felt his cock stiffen, turned on by the sight of his partner similarly covered with wires and tubes. 

"All right," said one of the techs. "Almost done."

"We need to insert your anal stimulation," said the other. After a few more button presses on the chair consoles, a door opened on the back of the chairs, revealing a white plastic dildo-looking object. "Go ahead and sit," commanded the techs.

Chris and Evan did as commanded, their butts now pressed up against the window in the chair. The dildo object wasn't sticking out- it was hidden in an alcove behind the chair. The techs pressed another button and a whirring mechanical motor indicated that it was now in motion. Indeed, the silicone cocks pressed up against Evan and Chris's asses, poking them in the butt, wishing to gain entry. The motor stopped. "This is for lubrication," the tech stated. A cool spurt of lube hit the boys in the ass. "It will feel a little warm," the tech explained. "They are also somewhat large. If you need to stop, let us known immediately." With another press, the mechanic dongs continued their advance to Evan and Chris, pressing up against their tight, now lubed, holes, slowly gaining entrance.

The cock was big, Chris thought. Almost as big as Evan's, he grinned. Still, it felt good having his ass stretched like this, the kinky feelings continued to intensify. They were so close now. He looked over at Evan, who was moaning from the feeling of being penetrated. "Fuck, Chris, you feeling this?" 

"Fuck yeah, babe! Get ready for the real thing," he shouted back.

"Those are for ass and genital growth, by the way," the techs explained. "You'll feel a few sensations from them as we go. They'll vibrate, and they might move back and forth a little, as if you're getting fucked. And finally, of course, you'll feel them injecting you with one of the growth compounds."

Evan and Chris's own cocks were now at full stiffness, 6" and 6.5" of pure man meat. The boys were dying to touch themselves, but the techs admonished them. "Two more steps."

With still more button presses, heavy restraints encases the boy's ankles and wrists. "We can't have you moving around during the procedure too much," they explained. "Many patients don't like to wait for the process to complete before they turn to their partner, which... causes problems."

Finally, with one more button press, another large panel opened in the ceiling above both chairs. One more wide tube descended, this one baring another plastic dildo on the end.

"This is sort of like a 'feeding tube'," the tech murmured. "We promise, you won't have to have it in for the whole time. But for the beginning, you need to have it in your mouth. It's going to administer one of the critical growth compounds. It's a little uncomfortable, but most patients find it very erotic. Just let it pump you full of the good stuff, and when it's done, it'll automatically retract back into the ceiling."

The boys nodded, and the feeding-tube-cock moved into position in their faces, but not yet in their mouths yet. 

"You're ready, boys. We'll be monitoring your vitals and we can stop the growth if anything goes wrong. Don't worry about anything else, just sit back and enjoy. We recommend watching yours and your partner's growth- it really turns most guys on, a lot. Feel free to cum all you want - you won't have a problem supplying your partner all the spunk you could ever want after the growth's over. Once it's over, anything goes - you're free to do what you want with your partner right in this room. We'll come in when the time's right to show you where to go next."

The boys nodded that they understood, and opened their mouths to accommodate the advancing feeding tube. The techs left the room as the metal door slammed shut. A blaring computer voiced countdown came upon the speaker: "5, 4, 3, 2, 1..."

When the countdown ended, Evan and Chris stared at each other, sitting in the high tech chairs, unable to move, wires and tubes attached to their body in the most erotic way imaginable. Their cocks were hard as can be and would only be growing from here. 

Thick white liquid began to ooze down the feeding tubes, slowly being forced into the cock mouthpiece. Simultaneously, growth chemicals began being pumped into the boys asses, a feeling of warmth accompanying the now vibrating and pulsing dildos. As this began, Evan began to taste a sweet, salty, and musky taste as the feeding tube began supplying him with thick growth juice. Between the taste in his mouth, the feeling in his ass, the tightness of his cock, and the sight of his boyfriend undergoing all of these changes with him, his mind began to slip as he felt a twinge in his balls...


  • Like 2
  • Upvote 21

Share this post

Link to post
Share on other sites

Enhancements: Part Five
Getting Lucky

5 months ago...

Mark set down a medium sized cardboard box in his new dorm room. He was exhausted from moving things from the back of his parents' minivan up the street, into his new dorm building, into the elevator, then down the hall into his home for his freshman year of college. His mother and father, who had helped him move, were getting ready to leave. They were worried about their son, as most parents are, but especially worried that Mark would have trouble making friends by selecting a single dorm room for his freshman year. Mark was never the most social kid, and they worried that without the quintessential roommate experience, he wouldn't fit in here at college. Nor had Mark ever had a boyfriend or girlfriend in high school, so his parents were worried about him going out and being exposed to parties and the college experience too quickly. Sports were out, too- Mark's skinny frame and lack of physical prowess made him shirk away from fitness. They reassured their son that they were always there for him, exchanging goodbyes and leaving him to this new phase of his life. Truthfully, Mark wanted to be more outgoing. He was excited by college; he wanted to go out and party, make friends, and meet guys! Mark had almost no confidence to actually act on the social life he wanted. 

After his parents left, Mark shut his door and began unpacking some of his things. He thought about how nervous he was to meet new people. He thought about how badly he wanted to meet up with a hot guy and act on his sexual desires. Mark undressed and looked at himself in the mirror. He was skinny, alright; almost no muscles to speak of. His dick was small and undersized, and he had no body hair either. Turning around, he saw how flat his ass looked. What guy would ever want this, he sighed, considering his fate as a loner.

Some time later, Mark went out into the hallway to go to the dining hall for dinner. Just outside the entrance, he was stopped by two RAs sitting at a long table covered in a bright blue tablecloth, several small index cards, and a large box. "Care to enter the New Year Raffle?", one of them asked. 

"Sure, why not," said Mark. He approached the table and filled out an index card, providing his name and room number. "What's the prize, anyway?"

"It's really great! There prize is over $10,000 cash - for you to do whatever you want with! School books, musical instruments, athletic equipment, computer gear, you name it! The best part is that it's all privately funded by donor money from the school, so you don't have to feel like it's a waste of money to enter. Man, it'd be awesome to win, wouldn't it? But only one really lucky student out of the whole undergraduate population gets to win..." 

Mark thanked the two RAs for telling him about it and walked into the dining hall. He thought a little about what he'd do with the money... video games and computer stuff, maybe? But then, he began to think bigger. He thought about the article he read online about a new clinic opening up in the city not far from here...

1 month ago...

Mark woke up, late as usual. He had a 9am class that he often skipped on cold days like today, a simple statistics lecture that was all recorded and put online that he could watch later anyway. College had been going decent for him- he didn't have too many very close friends, and he still wasn't any closer to his dream of actually sexually interacting with a guy, but he was friendly with the other students on his floor and in his classes. He checked his e-mail, then screamed. He had won.

The raffle winner was to be kept secret this year on account of harassment last year's winner had received by students looking to curry favor for some share of the prize winnings. Mark was overjoyed. He ran around the room in his briefs, stopping in front of the full length mirror to flex a few times, envisioning what his new body would look like. He threw the towel he was about to carry with him to the communal bathroom for a shower back on his bed and sat back down at his computer. His cock stiffened a little as he visited the website of Andros health club and began to read about the requirements for a special session, then dialed the phone.

Present day...

Mark and Dr. Cross sat in the viewing room, having just finished watching Chris and Evan's 'session'. "They're perfect," Mark said. "Both of them."

Dr. Cross furrowed his brow a little, straightening his glasses. He turned off the monitor, now displaying Chris and Evan passed out from exhaustion, and pressed a button on the console. "Recovery to Room 3," he spoke into the intercom, signaling to his staff to go and collect the two boys. 

"I'm just worried you're getting into a bit much," Cross said. "I mean, you said you've never even been with a guy before at all..."

Mark shook his head. "It doesn't matter. You said that doesn't matter!"

Cross leaned back in his chair. "Technically no. But throwing you in there in your current state, with those two - who by the way, are going to be just as horny and insatiable as you saw them on that monitor..." his voice trailed off.

Mark replied, "So then I get in there, they grow me up nice and manly, and then I join them! And then we all have fun, and I get what I want, they get whatever reward you've got planned for them, and you get your 10 grand! So everyone wins!"

Cross thought back to his consultation with Mark one week ago...

"Testosterone levels... very low. Well Mark, I think that should explain why you're not.... not quite the way you want to be, physically speaking. Testosterone is responsible for a lot of things in a man's development, notably muscle growth, penis grow-" Dr Cross explained, but was cut off.

"Yeah, I know. I took sex-ed," Mark interjected. "But what does that mean for me, here, in your clinic. Can I be helped?"

Cross looked up at Mark. "Yes. We've seen men like you before in here. We can provide a way of enacting the permanent changes to your body that you're looking for; as we discussed on the phone, the majority of our clients are here for a temporary experience- but since you're willing to pay, and you have a demonstrable health reason, I don't see why you couldn't participate. Your physical makes you an ideal candidate."

"An ideal candidate," Mark recalled. "Didn't you use those exact words?"

Cross nodded. He truly didn't have any reason not  to allow Mark to undergo the procedure. Still, he had dealt with patients who regretted their decision before, so he wanted to make sure Mark was absolutely certain. "Just one more thing, you are 100% sure you're gay. Not just lying to get this done? We've had people come through before that just wanted a quick muscle and dick pump, only to find out they'd been permanently made hom-"

Mark interrupted again, this time pointing at the tent that had formed in his gray sweatpants from watching Chris and Evan on the screen. 

"Alright, alright," Dr. Cross conceded. He handed Mark a clipboard with a stack of forms.

The forms were mostly health questionnaires, but the back few pages (labeled "Premium Clients") were more interesting. Mark noticed a large amount of text had already been filled in (Patient requests large muscle growth, taking him to top 10 percentile... genital enhancement and other optimizations to sexual characteristics... moderate increase in body hair...). He scanned the rest of the paragraph, ensuring that Cross had taken down everything he had explained to him on the phone correctly. On the next page, he saw a little information about Chris and Evan. A statement on the top of the page stated that Premium Clients seeking permanent growth needed to go through a special procedure different from Temporary Clients, one that involved external participants. There were spaces on this page for Chris and Evan's signatures, currently blank. On the last page was a large blank box for "Special Instructions for the Premium Customer's Pleasure". Mark filled out a few things- mostly stuff he wanted Chris and Evan to do to make this the hottest session ever. He handed back the clipboard.

Dr. Cross stood up, leading Mark out the door. He motioned down the hall to a room where a technician was waiting to prepare Mark for the session as he carried his clipboard to the recovery room where Evan and Chris waited.


"...so, if you agree to participate, we're prepared to reward you with a number of great club perks!" Dr. Cross said, finishing his explanation of Mark's situation and request to Chris and Evan. The two boys were still huge, and naked, the changes from before still in effect. They had been asleep for a while, recovering energy from the strenuous process of growing and all the raucous sex they had in the session room. 

"What kind of perks?" asked Evan.

"Well, we'll give you access to our club upstairs, for starters. After that I'm prepared to offer you vouchers for future sessions, including some new experimental stuff. I find a lot of couples like to come back to try out new kinky stuff... if you help us out with this I'll make sure you're never turned away or charged for another session here again!"

"I'm totally in," said Chris. Although he was exhausted from earlier, he was still super horny. The thought of getting to do this all with Evan, as often as he wanted, sounded amazing. Not to mention how awesome it would be to grow some other guy using his new enhancements.

"Me too," Evan nodded.

"Splendid," Cross said. He handed the two boys each a jockstrap. "Put these on, if you don't mind... per our client's request. We'll start the session whenever all three of you are ready. He's quite a lot smaller than you right now... so please go gentle. And make sure to give him plenty of this...." he motioned to Chris's dick and Evan's pecs. The compounds in you will react with a drug we've given Mark to result in rapid, permanent enhancements for him.

Evan and Chris looked at each other, ecstatic about this new turn of events. It was like they had won the lottery.

  • Like 4
  • Upvote 12

Share this post

Link to post
Share on other sites

Enhancements: Part Six

Chris and Evan walked down the hallway, wearing nothing but the white jockstraps Dr. Cross had given them. Their cocks barely were contained by the tight white fabric, the elastic straps tightly wrapped around their bubble butts. They felt incredibly sexy, and they couldn't wait for what was about to happen. Arriving at Mark's room, the technician opened the door and let them inside. Dr. Cross said, "you know what to do... you can start whenever." The technician closed and locked the door behind them.

This room was much larger than the one their initial growth took place in. There were no expensive looking chairs with consoles next to them; just a regular chair off to the corner of the room, and a small bed. Mark was sitting in the chair, wearing nothing but a jockstrap himself. Chris and Evan glanced over at him. No wonder he wants to do this, Chris thought. He's even punier than me!

Mark stood up, greeting his new friends. He was indescribably nervous. "H-hey guys... So I guess we're all about to have some fun, right?"

"Yeah," said Evan, "I think we are."

All three men now had huge tents building in their jockstrap bulges. Mark came closer. "Can I?" he asked, motioning towards the boys' packages.

"Dude, we're about to be way past the point of asking. We got filled in on your whole situation, so if you're nervous or shy, we understand. But we're about to be way past the point of asking permission, so if you see something you want to do, I say go for it," Chris answered. He was staring his boyfriend in the eye. "But I can't really wait any longer." He leaned in and began kissing Evan deeply, their muscular bodies pressing together tightly. Mark hovered around, kneeling down to touch their cocks through their jockstraps. He went around and stared in awe at their asses, smacking them here and there. Mark couldn't believe it was actually happening.

Evan took Mark's old seat, pulling off his jock to reveal his massive 12" member. Chris knelt down beside him and began licking up and down his boyfriend's shaft, taking in every drop of sweat and musky scent. He then put his mouth completely over the massive head and started gagging himself on the cock. Mark sat down next to Chris and pulled his jock aside, a little intimidated by the man's massive dick. Mark remembered how badly he wanted this, how furiously he had masturbated so many times to the thought of a huge muscle man's cock, and went for it.

Mark gagged himself on Chris's huge dick. It was a gigantic task for a first timer, but Mark remembered how long he'd been waiting for this moment. He couldn't believe how amazing it felt to have this huge muscle man's cock filling up his mouth. The trio continued like this for a while, muffled moans of pleasure barely emerging from Chris and Mark's mouths. "Think it's time for your first load," Chris told Mark, pulling his mouth away from Evan's dick. He stood up as the redheaded twink knelt down between Evan and Chris. The two musclemen grabbed each other's cocks and furiously jerked each other off, kissing passionately. Evan rubbed his pecs, which, as before, had begun to swell up and feel tight. Suddenly the sensation at each man's cock became too much to bear and they unleashed a massive torrent of jizz down onto the waiting Mark.

Mark felt like he was in heaven. Hot streams of spunk rained down on his face and body, but mostly into his wide open mouth. As he swallowed the boys' loads, he wiped more cum off his pale white skin and licked his fingers clean. Finally, as the flow began to subside, he sucked on each man's cock once more to clean off any remaining cum. "Here we go, I guess," Mark said. 

Evan sat back down in his chair, his cock no softer than it was before his massive orgasm, despite the fact that he had just produced one of the biggest loads of his entire life. Get up here, he commanded Mark, slapping his pecs and gently tweaking his engorged nipples. Mark complied, sitting down onto Evan's body, carefully straddling Evan's cock. The larger man's dick rested neatly on Mark's ass, the weight and warmth of his shaft gently teasing Mark. Meanwhile, Chris knelt down behind Mark and pulled the freshman's ass cheeks apart, sticking his face right between them and beginning to rim him. Mark moaned, but Evan forced his head down to his massive pecs, now begging to be attended to.

It actually kind of hurt for Evan's pecs to be this full, he thought. He needed that sweet release, and he knew Mark just couldn't get enough of his potent growth juice. Mark latched on to one of Evan's nipples, which was nearly double its normal size, and began to suck. Within seconds, a flow of hot thick white liquid began flowing from the erect nipple and directly into Mark's throat. He thought it tasted amazing; a little musky, a little creamy, but the best part was how thick it was. The smell and taste reminded him of the abandoned jockstraps and underwear he used to collect from his dorm gym locker room to sniff while he masturbated back home. 

Meanwhile, the growth from ingesting Chris's cum was beginning. Mark's entire body frame began to swell, as if he was taking in a very deep breath, only it did not reduce in size as it would during exhalation. Mark felt a little bigger, a little more confident. His cock strained at his jockstrap. He had never felt an erection this hard before, and it only felt like it was getting harder. If he wasn't so preoccuped with tending to Evan's nipples or the feeling of Chris's tongue on his hole, he would have noticed his cock had grown from it's puny 4" erect size, all the way to a respectable 8" length. The girth of his cock had expanded too, and the entire thing was now pressing hard on the weak fabric of his jockstrap. He reached down and ripped the strained underwear clear off. The tightness was too much to bear as his waist expanded 3 sizes. He felt his biceps and triceps thickening, nearly tripling in size. His own pecs began to inflate, and Evan began to moan even more from the sensation of feeling Mark's growing pecs press up against his own abs. Mark released his mouth from Evan's left pec and switched to the right, roaring bestially as he felt more and more growth taking hold. His voice had grown deeper, too. Chris, who had still been rimming mark furiously, felt Mark's ass cheeks begin to swell. He pulled away from Mark's butt, slapping Mark's new bubble butt, before returning to his knees and turning around to start sucking on Mark's huge cock. 

Chris put the still lengthening cock in his mouth, and he barely needed to move up and down Mark's shaft to begin the blowjob. Mark's cock was still growing, and Chris loved the feeling of the still growing cock forcing itself further and further into his mouth. He gagged, sucking the cock for as long as he could before finally pulling away, panting rapidly to catch his breath. This break did not last long however, as Chris dove back down into Mark's crotch to taste his thick heavy balls. All this attention was becoming too much for Mark to bear, who was now struggling to hold back his first huge load as a new man. 

Finally Evan's pecs had returned to normal size, every last drop of pec milk sucked out of them successfully by Mark. He gazed up at the man who was now lying on top of him, nearly three times the size of the weak freshman who had started sucking on his pecs moments before. Mark stood up, and Evan got out of the chair, kneeling down to join his boyfriend. The two lovers began to worship their new friend's 12" member together. They loved the feeling of sucking on this cock together; once taking turns, one sucking and licking the shaft while the other gently played with Mark's balls, then later, both mouths sucking on the enormous dick at the same time.

Finally, Mark couldn't hold it in anymore. He grabbed his dick and bellowed, letting out an enormously deep moan as he unleashed spurt after spurt of cum onto Chris and Evan. With every blast, hot spunk splashed onto Evan and Chris's chests and faces, themselves now beating off and shooting their own loads directly at each other. Finally, after the torrent had ended. All three men stood up.

Mark looked at himself in the mirror, flanked by his two massive muscle friends. His dreams really had come true; he had turned into the embodiment of sex, a perfect representation of the muscle men he had spent years beating off to online. Short red hair rippled across his body, accompanied by thick tufts of red hair at his armpits and a long treasure trail from his belly button to the base of his cock. He flexed a few times, admiring himself, then turned to Evan and Chris. "I hope you don't think we're even close to done," he said, at first a little unaccustomed to his new deeper voice. In each hand, he firmly squeezed each guy's asses. Evan responded by loudly giving Mark's ass a slap of his own. "Hell no!" Evan cheered, as Mark turned around to bend over and present himself to his muscular friends...

  • Like 4
  • Upvote 10

Share this post

Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now