“No–that’s…that can’t be me, what the fuck have you done to me, Sir?”
It was two weeks since Winston had dosed Mark with the first serum, and he’d done an additional stages in five day cycles. Tomorrow, he’d dose him with the fourth serum, but he thought Mark had earned a night awake for being such a wonderful subject. Besides, too much time spent unconscious could be unhealthy for a mind–and Winston wanted to make sure that any damage done to Mark’s head was damage he’d wanted, not anything he’d done on accident. He’d kept him in a hypnotic state earlier, and moved him from the lab downstairs into one of the bedrooms upstairs, where they were standing now, and where Mark had come back to himself. In the full length mirror in front of him, he could see the extent of the changes which had swept across his body, and though they were unfinished, to someone unprepared for them, they would seem…staggering, he supposed.
Of course, the most dramatic shift was his chest. With each dose of the serum, the tissue of his chest had reentered a state of heightened development–but most of the tissue developing wasn’t muscle fiber, but rather breast tissue. The result was something rather unnatural looking–his chest still had the appearance of two muscular pecs, but the surface, rather than flat, was instead rounded and puffy. His serum made sure the breast tissue was still firm and didn’t sag, but the texture could be disturbing to some, though Winston found the appearance highly arousing. He watched Mark gently rub one of his inflamed tits, shuddering as he did, his cock spewing a sudden jet of cum across the carpet in front of him.
“That’s a very naughty Titpig–get down there and clean up that mess you made. I take cleanliness in this house very seriously, so you will have to learn to contain your messes.”
Mark tried to resist, but he got down on all fours and licked his own cum from the carpet, but once it had started his cock refused to stop–it kept leaking, forcing him to try and keep a hand underneath the head, collecting the precum, and he slurped it up once his palm was full. Winston knew that the increased cum production was an additional effect of the serum–Mark’s balls had so far tripled in size, stretching his scrotum tight, even as his cock had shrunk. Now it was just four inches, down from it’s original six, and he hoped that after the final serum it would be closer to one or two inches at most–perhaps even outsized by his nipples, which were just as inflamed as the rest of his chest had become. Each was at least as thick as Winston’s thumb–he straddled Mark where he was still cleaning the carpet, reached under and gave them both a tweak, and Mark nearly squealed as thick milk spurt from them both onto the carpet below him.
“Please…please, just…change me back sir, please. I don’t know why you’re doing this to me.” Mark said.
“Because you’re special, Titpig. Besides, you don’t really want to go back to who you were, do you?” Winston gripped Mark under the arms and hauled him up and knelt down behind him, so they were both on their knees in front of the mirror, Winston behind him, gloved hands caressing his tits gently. “This is what you want to be, after all, you want to be a freak–you want to be my freak.”
“N-No…” Mark said, but he could feel his Master’s words sinking into his psyche. Now that he was over the shock of it…it was kind of sexy, wasn’t it? Winston groped a bit harder, and Mark moaned, his nipples leaking more milk which ran down his chest and belly in tear trails.
Winston caught some on his fingers, brought it to his lips, and gave it a taste. “It’s delicious, Titpig–you should be proud.”
“Thank you, Sir.”
“What do you think slave? Are you happy with what I’m doing to you? It sure looks like you’re are–that cock of yours is still leaking all over my nice clean carpet, even though I ordered you to stop it–but I don’t think you can stop, can you?” Winston twisted Mark’s nipples, making him cry out in pain, milk spraying out and hitting the mirror in front of them, where it dribbled down. “Lick it up slave, before it hits the floor.”
Mark crawled forward and licked up the milk–Master was right, it was delicious. Winston reached out and slipped a finger into Mark’s ass, and to his surprise it slid right in, and he groaned in pleasure, and pushed back, finding his body eager to be filled.
“Tell me what you are, and I’ll fuck you.”
Mark hesitated, locking eyes with himself in the mirror. “I–I’m your…Titpig sir.”
He slid another finger in, “And what do you want to be?”
“I want to be your freak sir, I want to be your Titpig, please fuck my hole, please…”
“Yeah, that’s what I like to hear,” Winston said, and slid his cock into Mark’s hole, listening to his grunt and groan in delight, his cock leaking a steady stream of precum below him, where it puddled on the carpet. “You know you’re only halfway through, right? After we have a nice long night together, I’m going to put you back to sleep, take you back down into the lab, and shoot you up again. If you think you’re a freak now, just you fucking wait, you’ll be my proper monster soon enough.”
Mark found himself pushing back, eager to have more of his Master’s cock planted inside him. He’d been fucked before, but it had never felt like this–it had never gone in so easily, or felt like it…belonged in there.
“Yeah, do you like your new ass too? It’ll take anything now–it’s almost as hungry for cock as your mouth is going to be.”
“Harder Sir, fuck me harder!”
Winston was more than happy to do as his Titpig requested, reaching around and tugging on his tits, spewing enough milk to soak the front of his body, and when the Slave came, without even touching his cock, he spewed almost as much milk from his chest as he did from cum from his puny cock, but Winston wasn’t done yet–he wanted this fuck to last a good long while. They had all night, after all, and Winston wanted his new slave to appreciate the control his new Master had over them both before they went back to the lab and resumed their work. We he did cum, he filled his slave to the brim, and his sloppy hole leaked most of it back out, much to Mark’s embarrassment. Winston left him there, soaked in cum and milk, shaking with pleasure, unable to process most of what had he had just experienced, but desperate to feel it all again.
“Well, you’ve made quite a mess slave–I’ll have to punish you for that later. For now, though, why don’t we give you your first milking? I can always flog you once we get you hooked up, and kill two birds with one stone.”
Mark followed his Master out of the room, dripping and exhausted, and terrified of what he’d find, of what would happen…and yet, the sheer pleasure assaulting him ensured that by the end of the night, he was begging for more–and Winston assured him he’d get it, when he woke again in a few more days.