Note for readers: This is an adult homosexual male erotic fiction story which describes fictional sexual activity between consenting adults. Readers under the age of legal adulthood in their place of residence or who are not interested in homosexual erotic fiction or who reside in locations where posession of this material is not legal should please stop reading here. Thank you.
Phase 1: Beginning
On a friday night in an industrial loft in Brooklyn, the engineer finally completed his work. Ten years of working in secret, ten years of a boring desk job at a medical engineering firm to support it, pouring all of his available funds into his own equipment... and it all boiled down to a tiny drop of liquid in a tiny glass vial, filled with nanomachines too small to see. A monumental achievement in engineering: nanobots that would cure all known sexually transmitted diseases (and quite a few other diseases), and take excess human fat and cholesterol to break them down to power themselves, make more nanobots, and make... other things.
But, he didn't care about the technological achievement of the nanobots, or the medical achievement of the cures for diseases and obesity, this was about revenge. Revenge for the gaybashing 15 years ago that left him in months of painful recovery. Revenge for all the verbal abuse he'd received from straight men over the years. Revenge for the legal discrimination against his civil rights. Tonight, he would have his revenge, the discrimination and beatings would head toward their end, and the world would be changed forever...
But enough gloating, it was finally time to put the plan into action. He placed one of the vials in a padded case and pocketed it, grabbed his gym bag and stuffed in a pair of loose-fitting jeans, a box of cards he had pre-printed with his email address, and as an afterthought, a couple fresh bottles of poppers... hell, it's the big night, might as well enjoy it, right? Pulling on his coat, he was out the door, on his way to a sex club to change human history.
In a private room at a sex club in Manhattan the engineer disrobed, folding his clothes neatly and placing them aside. He took out the case with the vial, opened it, uncapped the vial, and before he could change his mind he poured the drop of liquid into his mouth. There would be no going back.
He reclined on the narrow mattress the club put in its rooms and waited. He had estimated that it would take about half an hour before the nanobots were in full swing. While he waited and tried to relax, they had entered his blood stream and spread throughout the body in minutes, found the fat in the small paunch he'd developed from spending too many hours in front of a computer instead of in the gym, and started breaking it down for raw materials. Their numbers increased rapidly, and in minutes they were spreading out with raw materials to start making... changes.
He first knew that the changes had begun when he started to feel tingling sensations in his cock and his ass. They were being restructured, another function of the nanobots. He had wondered if it would hurt, but he had gotten the functions that dulled the pain nerves while the work was going on correct, so instead it felt quite pleasurable. As his cock hardened slightly from the feeling he began to stroke it, settling back to enjoy the sensations. His five inch cock had been his favorite body part for a long time, but now he'd be seeing more of it. The changes were subtle at first, but as the number of nanobots multiplied, building on all the small bits of extra fat throughout his body, they reached the critical mass where they could start making changes much more quickly. Enjoying his slow stroking, he looked down to see his cock had reached a full inch longer than it had ever been. Soon it was seven inches, and slightly thicker than he was used to. 8... 9... the changes were starting to slow down now, as his now massive cock reached ten, and finally eleven inches. For now, the growth apparently stopped.
God, it felt good. Stroking had never been like this before, with his hand sliding slowly up and down his massive tool. He could also tell some of the more subtle changes had taken place... the nanobots had stimulated production of excess testosterone and were ramping up his sex drive hugely so the 40 year old researcher was at least as horny as the most hormonal 18 year old. Of course, being already at a sex club when this happened was all part of the plan, so he pulled a towel around his waist, grabbed a bottle of poppers, and headed out to the steam room.
At the steeam room he left the towel on a hook outside the door, slipped around the guys sucking and fucking in the middle of the room, and onto a bench. As he enjoyed the warmth and began to sweat, some nanobots were released in his sweat onto the surface of his skin, onto the bench, and in the air. His newly ten inch, rock hard cock gained the attention of the other men quickly, the excess pheremones his body was producing thanks to changes in his skin helped make them even hornier, and he selected several guys at random to service him. The two were quickly on their knees in front of him, licking and sucking on his cock and balls. He'd never had it this easy getting guys before, and he was really enjoying the oral attention. He hadn't really considered before that a bigger cock means more surface area to cause pleasure, but wow was it great! He was glad he'd always been good at holding himself back from cumming, and got to moan and enjoy being sucked hard for a good 15 minutes before cumming in the guy's mouth. The guy had already been exposed to nanobots from the researcher's precum and sweat, but the cum had a good strong shot of nanobots in it, helping give the bots in his system a jump start as they were absorbed in his mouth and throat.
The guys who had been sucking smiled and got up to look for new playmates as the engineer took a moment to breathe after cumming... but with his semen production now on overdrive thanks to more nanobot changes, he was hard again in perhaps a minute. He was certainly a center of attention as he strolled to the door to get his towel and head to the orgy room. Behind him in the steam room, all of the men were starting to feel pleasant tinglings in their cocks and asses, and the group fucking and sucking reached a new frenzy.
In the drier atmosphere of the orgy room the engineer's sweat slowly evaporated, spreading nanobots throughout the room for the other men to breathe in. Unsurprisingly, his huge cock was hugely popular, and with his newly quick recovery time, he could get sucked off by guy after guy and just clean off his cock with his towel and move on to the next. Hot sex always attracts onlookers in an orgy, and as the engineer was eager to spread the nanobots around he invited onlookers to participate. Soon he had one guy sucking his cock, another on his balls, one on each nipple, one on each armpit, and one last guy fucking him. His new ass made being fucked feel even better than it had before and could take any cock, so soon all he could do was scream with pleasure as he allowed the 7 guys working his body to support him and try to drain his seemingly inexhaustable supply of cum. He put the poppers to his nose, snorted himself good and stupid, and surrendered his mind to being sex-crazed for hours.
Within an hour or so changes were becoming apparent across the club, as everyone's cocks filled out to between 9 and 11 inches, their sex drives went wild, and their sexual appetites became insatiable. Of course the guys were stunned by the changes, but too overpowered by their pumping hormones to care, they went at it like animals. Even the jaded sex clubs of New York had never before seen the like of the frantic nonstop fucking that took place that night, quickly drawing in every patron of the club, and soon attracting most of the staff members to take a break to go play with some of the really stunning cocks they saw on the guys wandering the halls. The men stayed, and fucked like animals, until well past dawn, eventually trickling out in pairs and small groups to go find food, and then go home to have more frantic, wild sex.
In the club, the nanobots had spread on moisture in the air and by physical contact. They were all over the walls, the floors, and the benches. The next day's crowd of patrons would soon find themselves having much the same experience.
Saturday night when New York's gay bars filled up, there were a fair number of men who had recently lost weight and had enticingly big baskets in their jeans, all very horny and eager to hook up for sex right away when asked.
Sunday morning a couple who had been at the club saturday evening got on a plane, feeling surprisingly awake even though they'd been fucking like animals all night after the delightful experience of suddenly growing enormous cocks. They had been planning this vacation to Amsterdam for months, and were really looking forward to lots of play in its fabled gay scene. Amsterdam had no idea what it was in for.
The nanobots were spreading, and the conversion of humanity had begun.
--- END OF PART 01 ---