As Jennifer and Zach attempted to figure out their plan to get Zach's body back to normal, Jennifer realizes that she's thirsty. Forgetting about the curse of Zach's milk, she takes a drink, and her thirst is quenched.
"Wait, Jennifer, don't!" Zach clumsily clomped over to his girlfriend, his udder's uncontrollable swinging making it hard for him to walk.
"What? Oh, shit." Jennifer looked at the glass of milk she had just swallowed, and felt a tingling in her whole body. A strange feeling overcame her, as she looked down, and saw her breasts disappear, reemerging from her chest as a pair of muscular, defined pectorals. Her hips shrank, and abdominal muscles grew on her stomach. Most of her hair fell out, and it was replaced with a short crew-cut hairstyle. Her feminine face changed to look more masculine, and, finally, a female cow's body grew out from her--well, his waist, and an udder dropped from his underbelly, just as it had on his boyfriend a few hours ago.
"Jennifer... what happened to you?" said Zach, walking over to his girlfriend--well, boyfriend.
"I don't know," said Jennifer, in his newly deepened voice, "I... I guess my curse made it so that it changes anyone who drinks it into cow-centaurs resembling you... and since you have a male torso..." he looked over at his boyfriend, "Zach... I kind of like this..."
Zach grimaced, "I... uh..."
"Call me Johnathan, okay, baby?"
Zach smiled. He decided, after all these weird moments today, he could get used to having a boyfriend, "Okay, John." Zach kissed his boyfriend on his manly lips, and then proceeded to milk his boyfriend after their great make-out session.