Shared Heat (Patreon)

Zach and Cody were working on a research project under the table at their school. They couldn't let anyone know about what they were doing behind closed doors. Researching human and animal genetic splicing is on the edge of human morality. If it went wrong, it could leave a half-human half-animal monstrosity in its wake. However, Zach and Cody were on the brink of something great. They didn't need to worry about creating these horrible mutated subjects, they created a chemical formula that was able to do the gene splicing without any of the hassle. All it took was to take a quick drink or some skin exposure for the effects to kick in, so they handled it with care. They already successfully made a rat / insect hybrid in their testing. Upon feeding the rat the insect compound, it sprouted out insect-like wings and its eyes became insect-like. It was able to continue living as normal with seemingly no issues. A massive success for them, the duo was ecstatic. They were one step closer to the next greatest discovery of mankind.


They decided it was time to move up to some bigger subjects. They managed to get their hands on live sheep, and with a bit of underground work, they got what they needed for the equestrian chemical compound. It was difficult to get their hands on the horse-chemicals than the entire sheep surprisingly enough. Cody put a lot of hard work (and money) into it. It didn't matter to him, he wouldn't regret it when he was on stage recognized for his efforts. They made sure to completely cover themselves while handling the equestrian chemical compound to mix it with their stabilizing solution. No mistakes could be made. Unfortunately for them, their money constraints ended up biting them back. The tools Cody were using failed him, the prongs holding the vial detached from each other, causing the vial to smash onto the floor. The liquid instantly evaporated as it hit the ground.


"Jesus Christ Cody, what the fuck was that about." Zach shouted.


"It was the dogshit tools you bought, they just straight up broke on me!" he responded, also nearly screaming at him.


"Well what happened to the equestrian compound then?"


"I don't know! As soon as the glass hit the ground the liquid just sort of vanished!"


"You're a scientist right? You know what that means, Right? It didn't just go nowhere idiot!"


Cody's body began to heat up, the heat was unbearable. He quickly took his protective suit off and released a sigh of relief. To his dismay, the heat only increased in intensity. Zach watched in horror as Cody's body cracked and shrank as he just stood there doing anything he could to cool down. His hair turned a butterscotch blonde as two pointed ears sprouted out of the top of his head. His back arched from his spine extending outwards, a sleek butterscotch blonde tail sprouting out behind him. Cody grabbed at his new appendage and blushed. The result of his consequences was becoming a horseboy. He should've known the moment he dropped the compound.


His eyes turned a bright yellow and his face rounded out to become more feminine. Zach sputtered out "You l-you look like a girl." Cody takes a look at himself to see his soft, cute face and long flowing creamy hair. Little did he know that he was about to pay for using underground sources to do animal testing. As he slid off his pants to escape the ever increasing heat, he discovered that he was wearing black lingerie~esque panties with a slight bulge coming out of them.  He stared at the bulge as it became smaller with each breath he took in, until there was a small *pop*, leaving her panties completely flat. Zach was staring as well, shocked from his friend Cody becoming a she, his new functioning womanhood outlined by the panties. Zach started to feel hot as well, he panicked to take off his protective suit without thinking.


Once it was fully off he realized that he has made the same mistake as Cody had. The heat intensified, but not in the same way that it did for Cody. Zachs crotch became especially warm while his body shrunk down to a more petite figure. A more traditional blonde colored tail sprouted out from behind him as well, accompanied with similar ears perched on top of his head. The heat in his crotch built and built until he couldn't help but to touch his penis. He reaches his hand into his pants, only to discover a member that's barely there and the same black panties that Cody has. He tries to pleasure himself to relieve the heat, but when his hand makes it to his crotch there's only a slit. And when she slips a finger in, she feels.... nothing? Nothing but her fleshy inside surrounding her finger. Her pussy was still hot and dripping, but she was unable to do anything about it. That was until she took a look at Cody, whose butt and thighs were gently expanding with her knees knocked together from pleasure.


Zach made her way over to Cody. "Why are you looking at me like that, what are you doing?" Cody exclaimed worryingly in a girly, spunky voice.


"I need to... help you... cutie." Zach responds with a motherly, but seductive tone as she gets right up to Cody. Zach caressed Cody's new ears, causing her to become even more lustful while her hips, ass, and thighs grew wide and full to match her motherly voice.


"Get the fuck off me man." Cody squeaks in a faint, high pitched voice. Zach doesn't hesitate for a moment as he moves his other hand down to Cody's panties, massaging the outline of her vagina through the panties. Cody stood there, her face blushing bright red as she let Zach slip her petite hands under her panties. Zach begins to softly push her fingers in and out of Cody's wet, warm womanhood. They both moan in unison while their chests slightly press against their shirts.


"Z~Zach, stop... mmmmmhhhmm... this. I'm growing t~tits, please.." Cody faintly moans. Zach couldn't stop herself, with every sensation she gives Cody, the same pleasure is reflected back onto herself. It was an intense and powerful bliss that blanked her mind completely. The only thing she could think about was the best way to pleasure Cody's sopping lady parts. It was the only way the heat would subside from Zach's body, all of the anger at Cody redirected into her libido. Zach's warm panting breaths beat against the back of Cody's neck as her fingers schlicked inside of Cody's womanhood. With each push in and out each of their breasts became larger and fuller. Cody stared down at her chest in horror while blushing from the immense bliss from her crotch. Their bosoms pressed against their white shirts, large nipples visible through them. Zach's hand caressed Cody's soft face on its way down to the bottom of her shirt. Zach's hand slid up under her shirt and cupped her perky breasts. Cody couldn't hold back the "Mmmmmmhhhhhhh" from the sensation of soft skin against her sensitive breasts. Zach's hand moves up to tweak her nipple while she continues to finger her pussy. Zach felt a little light-headed, they were both nearing climax. Zach pulled on Cody's clit and nipple as their voices of orgasmic bliss harmonized, their entire bodies shaking from the pleasure and relief from the heat. They both laid down on the floor and collapsed from the exhausting orgasm. Cody in Zach's arms.


They woke up in shock to discover that they were the same horse girls from before. They both got up to find that their minds effectively hadn't changed outside of the increased libido and lesbian tendencies. Luckily for them, they didn't have to worry about another accident, as once the compound was used once, no other compounds would be effective. Their new bouncy, petite bodies didn't stop them from continuing their research. Even though they knew there was no turning back in sight, they had just made one of the greatest scientific advancements of all time. Successful human and animal hybrids. They never thought they would make it this far. The only downside, that Cody noticed right away, was Zach's insatiable horniness as she approached Cody from behind, hot and panting, ready to relieve herself with Cody's body.