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  1. They stood in front of each other, sweat glistening on their newly transformed bodies, panting heavily, disoriented by their unfamiliar power and mass. Perhaps it had been a bad idea to use supersteroids to escape their life as miserable dweebs. They just heard of all the pros, how it could turn even the smallest weakling into a hulking alpha whose scent alone would drive everyone in his vicinity into a sexual frenzy and they just couldn’t resist. Fortunately nowadays it wasn't too hard to get a sample, people were undermining all efforts of the government to contain the outbreaks left and right. Infected cum was everywhere in the so called "risk zones", and though the majority of people there (who hadn't turned or fled yet) carefully made their way around both the sex-crazed giants ripping out of their clothes in the middle of the street as well as the huge pools of pure infected cum they left behind, there were others who directly sought out the stuff, continuing the cycle. And some of them even sold it via the internet (after becoming living fabrication units for supersteroids themselves). The two friends decided to risk it and bought some of it, their hunger for becoming huge overriding any fears of potential risks they had. They gave each other a dose of the stuff wearing nothing but the widest tank-tops they could find on the market and their underwear. They felt silly, looking even wimpier than they usually did in the oversized clothes. But then the pain started. They screamed as their bodies began to shift and mutate, their testosterone changing into a compound at least twenty times as powerful as before, their negligible balls pumping out the rest of the small drops of their old sperm before filling up with new, extremely concentrated cum, growing bigger and bigger. Their faces shifted, weak jaws and chins becoming more pronounced, facial hair getting thicker and their necks swelling and forcing their voices to drop by the second. New lean muscle mass erupting on their bodies, their spindly arms changing into bulging guns, their formerly nonexistant chests replaced by massive pecs tearing through the suddenly much too small tanktops. Their pain-induced screams soon began to sound more like deeply sensual roars, as if they were celebrating being freed from their former pathetic selfs. Massive cocks, replacing their tiny dicks, tore through their underwear with precum splattering everywhere. Finally the transformation was completed, and they saw each other in the eyes. Two alphas, ready to dominate, ready to fuck. But behind these raw sexual feelings was something else, a much more subtle need that might have been present in their former selves as well, the need to be completed by the other. And now that need was fueling their sexual aggression even further. Admitting that this was what they had always wished for was their last rational thought for a very long time…
  2. Dr. Denninger was happy when his experiments with neanderthal DNA and retroviri gave him the body of his dreams. To hell with all his colleagues who had told him that he was insane for believing that Homo sapiens neanderthalensis were much more physically powerful than our species and that only their more limited mental capacities had caused their extinction. He had decided to directly test this on himself. Now a less honest person would have told everyone that this was just a way to find cures for muscle dystrophy or similar diseases. Not so Denninger. He could admit that it was all for the hot body he had craved since high-school and had never been able to get himself. Well that and proving his hypothesis. Naturally. The process itself had been painful, which wasn't surprising, seeing as most of his DNA was being forcibly rewritten by the virus. It had been worth it though. He felt confident and powerful and enjoyed every second of it. He let his new, much more impressive pecs bounce a little for his own amusement, flexed his arms and groped the new, highly enlarged bulge in his pants. He hadn't expected that last part, but didn't mind it at all. After jerking off furiously and covering himself and his bed in his spunk, he fell asleep. He had strange dreams: He saw snow-covered mountains and tundras, wide grass plains and at least once the ocean. All of these terrains felt strangely familiar now, even though Denninger had never even been to the ocean before. His muscles felt huge in these dreams, much bigger than even the improvement he had already gotten. They still felt like a light weight while he was hunting mammoths and running through the wilds of paleolithic europe. He groaned in his sleep. Slowly but surely his actual body began to stretch and grow even further without him noticing it... Not that he minded the additional muscle mass and power when he woke up the next day. Ok, there was a certain dizziness that he couldn't shake of, as if his thoughts were somehow different than before, a bit slower and more foggy. But nevermind that, he was getting even bigger than predicted! And he felt insanely horny. Absentmindedly he scratched the growing hair on his chest. Perhaps he should postpone his triumphant meeting with his colleagues for a day or so and instead spend the rest of the day masturbating and feeling his new body... That’s him a week later. His libido was still growing, as was his mass and his body hair. The meeting with his colleagues never happened, in fact he quit his job at the university a few days ago. The only thing he cared for now was giving his new adoring fans on the internet a show by stroking his thick shaft as often as possible. A week ago he had made sure to not get into sexual contact until the virus was out of his system,but those measures had been implemented by his old, frail self. And Dr. Denninger was slowly but surely becoming nothing more than a distant memory Den here was very willing to forget... That’s him now. His body has become too big for his old house, but fortunately his cam shows and a horde of worshippers are giving him all the money he needs for his new appartement. His gigantic chest is getting in the way of the camera soon and he actually looks forward to that. He doesn't really care for anything but food and satisfying his sexual needs anymore, both of which are constantly increasing proportionally to the size of his body. Every worshipper leaving his house does so with a stomach full with his potent cum and a hefty dose of the virus. And they don't mind that either...
  3. He didn’t know how he got here. Fading memories told him that he had been shy, lanky, white Tyler Mason just a couple minutes ago, with no sex life to speak of. Then he had gotten into contact with this nice, handsome and rich investment broker called Peter. His needs had overwritten any kind of doubts he had about the other guys' motivations and Tyler agreed to meet Peter at his flat. Their date had been off to a great start, Peter seemed to be nice and eloquent and actually interested in all the nerdy hobbies Tyler liked so much. The food though had tasted kind of iffy, but Tyler didn't really mind. Peter had excused himself halfway through the dinner when one of his clients called him and Tyler, naturally curious as he was, had explored the rest of the house, especially the huge library in the back. Peter had told him that he was an avid reader, but the dust layer covering nearly every book told another story. Only a few seemed to be dust-free and Tyler randomly grabbed one of them. A loud clicking and whirring noise echoed through the hall and a small hidden door between the bookshelfs opened. Tyler suddenly felt a bit unsure about himself, perhaps he had gone too far... then again, if he just put back the book after taking a peak into the open room it couldn't hurt, right? And then he found them: rows upon rows of bottles full with a transparent, slightly viscous substance lined the walls of the secret room. He took one of them and looked at the label: Supersteroids. Tyler gasped. Of course he had heard of the substance and its effects, but always dismissed it as some kind of urban myth. A laptop at the far side of the room suddenly came to life, revealing folders upon folders with videos of Peters' former dates hulking out and a short list of Grindr profiles of equally nondescript people in a folder called "Potential". Tyler felt a shiver going down his spine. His own profile was in there as well, under the subfolder "Acquired". Looking at the rest of the poorly secured system, Tyler began to put two and two together: Peter was getting off on watching others mutate into those muscular freaks, feeling them up, having a little fun, but always careful to knock them out and releasing them somewhere far away before he was infected himself. Then he sold the videos or some of the tamer new muscle giants to other rich dudes for their shared amusement. It wasn't that he needed the money, just the thrill of using less fortunate people than him like this seemed to be enough for the asshole. He didn't even care about the potential of spreading the supersteroid like an infection this way. And he was obviously arrogant enough to think that none of his "dates" would be curious or smart enough to find this room. Anger flared up in Tyler, white-hot and fueled by the rising amounts of testosterone in his system. He was already feeling the heat in his balls rising, his clothes getting smaller, his muscles thicker, his cock expanding and filling his jeans to the breaking point. With slight irritation Tyler also noticed his skin getting darker by the second. The food had been spiked, that much was obvious. Tyler thought desperately about a way to make Peter pay for what he had done. With the last ounce of willpower he had left in himself he took as many bottles of the supersteroids he could find, opened them and poured the substance down his throat. Then he dashed back to the kitchen, already ripping out of his clothes. He felt as if his entire body was under enormous pressure from within. Cum was rushing into his expanding balls, his entire body seemed to prime itself for the biggest orgasm of his life. His jeans couldn't handle his new, arm-long cock any longer, and soon he was moaning and pumping it with both of his thickening hands. A few minutes later a deep roar and the splattering sound of what had to be decilitres of thick cum against the wall marked the end of Tyler and the start of the new muscle bull Tyrone. Peter came back into the kitchen. Shit, he had missed nearly everything! Damn that irritating client. Oh well, he could always watch the video footage later on. Now he just had to get rid of the brute in front of him. He had to admit, that boring nerd had grown into quite the impressive specimen. All the more important to get him out of there quickly before the added sedatives wore off completely. Usually the dose was enough to leave even supersteroid users in a heavy stupor once they had gone through the transformation, making it easy to handle them for a while. This didn't account for extreme overdoses though. Peter suddenly found himself being tackled against the desk and then stripped of his clothes, the new gigantic python of Tyrone finding and then mercilessly pounding his hole. He screamed with pain and pleasure, trying to free himself, but Tyrones' new strength was too much for him. Peter was flipped onto his back as if he weighed nothing, and with pure unadulterated horror he recognized the muscle beasts need to make him watch what was happening next. Tyrones' thrusts got harder and stronger, his melon-sized balls seemed to pulse in anticipation and Peter saw and felt him growing yet again. It did take much more screaming and the sound of a body being filled to the breaking point with supersteroid infected cum before the thrusts finally stopped for a few seconds... then they started again, getting louder and more powerful each time. And this repeated the whole night long. This is Pete now. Pete loves his new body. He loves that he is much more capable of handling Tyrone's regular floods of cum than before. He loves how much he craves his new masters' cock and insane muscles now. He is pretty much the only one who can handle that monster anyway and that makes him proud. Not many people can say for themselves that they are the favorite fucktoy of the biggest, most virile man in the world. Pete doesn't need anything else and quite frankly, he isn't capable of doing much else either. And that's just fine by him.
  4. Day 4. I have studied the effect of the chemical for quite some time now. It is definitely the work of a genius. Aside from everything else, the muscles, the beauty and the… other advantages, it changes the body of its user into a production facility for itself. Traces of it are present in the saliva and the aspirations of its users, but it is mostly concentrated in the seminal fluids. This might be an indicator for the reason why it doesn’t seem to affect women in any way, but I am not certain about it at the moment. My test subject Alpha was injected 72 hours ago with 1 microgramm of the hormone and rapidly changed over the course of two hours (see test file C). His growth has mostly stopped since then, although the growing production of semen and stength of his libido hasn’t... - Day 7. Something is not right. I don’t know why, but I haven’t been able to get the test subject Alpha out of my head for a while now. The only thing he does is eat, working out in the small gym I have allowed him to have in his cell and masturbating which he does all the time by now. He says he loves it, but wished I could join him… whatever that means. I’m tightening security today. Just to be sure. - Day 9. I have made a shocking discovery: Not only does the steroid affect the users muscles and hormonal glands, it also actively changes the composition of his pheromone output. Whoever breaths these in seems to become more and more sexually focussed on Subject Alpha until... well I can’t sleep anymore, I can only think about him. I must be affected, but I don’t know how, the cell is airtight. He’s just looking at me with hungry eyes now… and I have to really concentrate not to give in to my lust for him. - Day 10. He used his new strength to break a small hole into the ventilation shaft with his finger. Why didn’t I figure this out sooner? The steroid changes the brain chemistry as well… I guess I should abort the research… if I still can. - Day… whatever: I gave in. Why didn’t I do that sooner? I was in heaven when I drank his cum hungrily, feeling my muscles swell to obscene sizes , feeling my chest getting bigger and groping it with my thickening hands. My face burned while my jaw became more square and my neck thickened. I don’t know why I was afraid of this. Directly afterwards I gave Alpha another dosage of the pure steroid directly into his balls. I can still here him moaning and growing. Have to get back to him now. Have to feed.
  5. Yes boy, you might not believe what you are holding there, but those massive guns are real. Go on, lick them, I know you want to… need to. Oh yeah, that’s right, keep doing that. It’s too late to refuse the call of all these muscles. You will soon reach my broad and thick pecs, followed by my extremely cut abs and once you reach my cock, I will blow the biggest load into you that you have ever seen. Don’t be frightened. Once that happens you will swell out of these clothes in no time. And then the real fun starts once your new hormones kick in. We’ll fuck each others brains out then, believe me… --- He was right you know? Once I was able to catch my breath again I began to lick every last drop of cum that was left on me, it was some kind of sudden obsession. And then my clothes began to feel too small for me, This huge chest? It just burst through my shirt while he was laughing and playing with these new, huge nips. My shoulders and arms did the rest. My enormous legs went through my jeans as if they were made of wet tissue paper. And I could feel how his cum changing me from within as well, making me more cocky, less shy, an alpha through and through. And now look at you: I didn’t tell you before you already had gulped down every last drop of my juice, but you are already filling out nicely. How do you feel? --- ... like a fucking god!
  6. When young nerd Alexander found the disregarded tank top after another disappointing workout session in his locker, he first thought that it was some kind of prank by the three jocks that always harassed him during his training. Still, the shirt looked nice and what could be the harm in wearing it for a short while? He looked down… - - - When massive bodybuilder Alex looked up he began to flex his pecs just to remind himself of the pump he had received today. He had destroyed the weights once again and his chest felt thick and powerful. His giant cock nearly shredded his shorts at the seams, but that was no wonder with nuts as big as melons like his. He looked at one of his three adoring himbos, already naked and willing just like he ordered them to be. He smirked and thought about the massive loads he would pump into them and the strange satisfaction it gave him everytime he flexed his thick arms into one of their faces, nearly suffocating them with his extreme muscles… and them loving every second of it…
  7. I had planned this for quite some time now: I invited my lanky and shy friend Thomas over for a fun evening watching The Expanse or some other sci-fi series. Then I excused myself halfway through for a moment and activated a specific machine I had build inside my TV. Without knowing it, Thomas was subjected to multiple specific electromagnetic pulses directly interacting with his neural activity. It only worked for him and boy, it was hard gathering enough information about the specifics of his nervous system to make that happen, I can tell you that. The changes these pulses generated were small, but cumulative. It enhanced his libido, his aggression and slowly turned him into much more of an extrovert. Using my secret camera I could watch the transformation, how his whole demeanor changed in a few minutes, his posture got better and his face went from nice and friendly to a much more assertive and somehow hungry look. Then I activated Phase 2, which released an odorless gas into the room. I won’t say the specifics of the substances used for it, let’s just say that the effect on him was observable nearly instantaneous: His back suddenly started getting wide and thick with muscle, I could hear him groan from the pain (though the EM pulses rendered him unable to process what was happening to him). Then his shirt just burst of him because of his widening shoulders and thickening pecs. He shuddered and his flat abs began to rearrange and grow themselves into a perfect sixpack. His legs began to fill out his loose jeans so much that afterwards it seemed like he put on skinny ones. A prominent bulge grew under them, signs of his enlargening endowments. Finally it stopped and I filtered the gas out of the room and stepped into it. He immediately stood up and looked at me with the strange hunger in his eyes I had already noticed. He undid his belt and said: “Ok, whatever you did to me, I want more of it. And just to be clear here,” and with these words he flexed his right arm, showing of his beautiful bicep peaks, “from now on we will do as I say.” He stripped of his jeans, then gave me a disapproving look. “Now you look like you could really use a taste of your own medicine. But we can get to that later.” He took of his undies and now I could finally see his inhumanly big dick (why exactly did I make it so huge? I didn’t even remember, not that it mattered). “Let’s see what I can do with you and this horse cock you gave me first.”
  8. Someone is enjoying his new supersteroids very much. A few hours ago he was just a small geeky guy in his mid twenties studying biology. Then he had downed his own invention: Human testosterone amplified to an extreme degree by bull hormones, certain epigenetic markers and another half a dozen illegal substances. His magnum opus both as an upcoming scientist as well as someone who hated being small and fragile his entire life. Soon his mind and body burned as he packed on huge amounts of new muscle mass. His backs and shoulders cracked and widened, his chest became two huge slaps of meat and his arms seemed to explode in size, all of that in a few minutes. His face contorted into a strikingly handsome display of raw masculinity and his neck became thick and massive. What he didn’t expect was that the bull hormones would affect his cock and balls as well: With another burning sensation both swelled into a thick, footlong python and two large globes filled to the brink. Lastly his mind changed dramatically, fully embracing his monstrous new libido and confidence and he orgasmed right there, spraying his room with his cum. With thoughts of the great fucks he would have in the future (from now on daily or even hourly) he stepped outside his house, not realizing that his cum would change others into muscular beasts like himself… not that he would have minded if he knew… Elsewhere one of his friends and colleagues received an intriguing package containing both a flask with a mysterious colorless substance inside as well as a mysterious recipe...
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