Original art by 粥々

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“Yan-Dairy?” Sure enough, Carter hadn’t read the label wrong. Right in front of him, next to all the other milk cartons, was one labeled “Yan-Dairy.” “Save the dwindling cow population one carton at a time… Is the cow population even dwindling?” Carter took a moment to consider his options. Buying milk was a pretty stale task… would it really hurt to try out something new? Give this newbie on the scene a chance? And hey, what if it did help out cows as well, right? Maybe some portion of the purchase went to a, uh, cow charity?
He pulled it off the shelf and threw it in the cart with the rest of his groceries. He and his roommate Matt did the shopping for the two of them every other week. It gave them more free time… not that either of them necessarily needed it. But it didn’t take that much longer to grab a few extra things that the other roomie needed, so it was a pretty sweet arrangement. After he finished up, Carter hauled everything to their apartment. Matt was out with friends, probably. So he put everything away himself, until he pulled out the Yan-Dairy. He realized that buying something experimental without checking with Matt might not be the greatest idea… what if it tasted awful? He opened it and smelled it, and got back a strong… lavender? Matt was pretty adamant about not drinking milk straight from the carton, seeing that they both used it… But he wouldn’t know, it wouldn’t hurt him, so Carter took a swig.
The taste almost made Carter stumble backwards. It was strong. Overwhelmingly sweet. And yet… it didn’t bother him. If anything, he wanted more. Something this sweet shouldn’t ever be used in place of regular milk, and yet here he was, finding himself unable to think of using anything else. Carter didn’t know it, but just that little bit of milk had had a pretty heavy effect on his mind… and his body. “Mmmhhh…” His brain had been rewired to an almost religious level of worship towards the Yan-Dairy. So much so that his body yearned to be one with it, to hold all of it. His hips inflated, and his body fattened. He had gone from somewhat lean to notably thick, all in the name of storing dairy. As he took another sip, the changes only became more extreme. If his breasts expanded to those of a woman’s, he could store so much more! The milk overwrote his body’s initial decision to make him a man, and pushed as hard as it could on any of the female vestiges throughout him. “Mmmooohhh…” It wasn’t long before Carter was sporting a pair of massive breasts and long, dark hair. Soft skin, long, lucious hair, and a massive output of milk, all Carter needed to be premium cattle was the ability to reproduce… and so soon Sophie was sporting a tight vagina. All she needed was a mate… and it didn’t take long for her subconscious to decide on one. She thought of all those nights that she saw Matt come home with a girl… he must be the ideal mate. He must be hers.
~~~
Matt got home a few hours later, and he couldn’t help but notice most of the groceries were put away… aside from an empty carton of milk. “Yan-Dairy… he couldn’t help his inner otaku, huh.” Matt tossed it out… into an empty trash can. That wasn’t the only surprise waiting for him, though. Carter hadn’t only assumedly emptied the trash, but the apartment was spotless. How much effort had he put into this… and why? He approached Carter’s room, but there was no answer to his knock, and when he peeked inside, there was no Carter to be found… or most of his stuff either. Only the bare essentials remained; everything else was packed up nicely and stashed away in his closet. A few things hung from the hanger inside: a variety of dark dresses and cow print accessories. “Ugh… I shouldn’t have seen that. Is that what he’s into?”
Matt got his biggest surprise, though, when he went inside of his own room. A luscious woman dressed only in a cow print bikini was putting things away for him. “Ohmigosh, Matt!” She immediately pounced on him, and he awkwardly tried to pry his way out from under her. “Who are you? Does Carter know you?” She held a blank expression for a moment, as if she was digging through her almost empty mind for the name Carter. “No…? I don’t know a Carter. What do you mean, who am I? I’m your roommate, silly!” She instantly nuzzled up against him. “I was thinking we should really share a room… and I cleaned the house too! Does that make you happy?” It was overwhelming. She did all this? She thought she lived here? She did all this for him? She was crazy! “Oh Matt, don’t ever do that again…” Matt couldn’t help but squeak out the only question that came to mind. “Do… what?” Sophie responded as if it were obvious. “Leave! I was so, so, so worried about you! I was worried you found some WHORE and were spending time with her, but now you’re back! Don’t ever leave me again! The only woman you need in your life is me…”