Jennifer considered letting the curse decide, but then realized how badly it could ruin humanity. The question had something to do with exceptions to goat-women and bull-men, and how people like her could exist, right? The real answer was that she did it, of course, so why not just make up something science-y enough to be acceptable?
She cleared her throat. "Scientists believe there's a rare genetic disorder in a small percentage of humanity, which causes them to react to foreign materials before or during puberty which causes them to take on varying amounts of an animal if introduced while their immune system is compromised. For example, I had a pretty bad flu several years ago and I think I ate beef or drank cow's milk during that time, and I heard Kyle got sick from a snake bite. Samantha's parents had some sort of weird regiment of drinking goat's milk to get her to recover from chicken pox, and Tina got sick as a baby when she ate a snail. It's challenging to impossible to detect the genetic anomaly at this time, but they've been trying ever since people like me started showing up. Historians think it may have been the source of many mythological creature sightings, and how the Egyptians got their gods." She thought for a moment, then decided to make Kyle's day just a little worse. "The science isn't fully settled. Some things remain unexplained, like Kyle's four cow udders on his chest and pink scales."
Ms. Davis looked ecstatic. "Very good, Jennifer, I knew you'd be a great source on this topic. Now, would you mind coming up to the front to clear up some misconceptions about your condition?"
She'd sooner be sent to the principal than do that, which means she could only give one answer. "Yeah, I guess." Her body robotically heaved itself out of her seat, then slowly trudged to the front as her engorged udder sloshed with each step. Each of her four waggling teats were on prominent display as she turned to face the class.
"Alright class, we have an expert on this rare condition. Any questions she can't answer, I'll supplement. Now, who first?" A few hands raised. Jennifer noted that she didn't have to answer questions not directed at her as Ms. Davis looked over the classroom. "Ah, Gary. What's your question?"
Gary lowered his hand. "Samantha has four breasts and Kyle kind-of has four breasts. Is this something all people with this condition get?"
Jennifer barely had to think. "That's a silly question. As you can see with me, of course they do-" Not. The last word caught in her throat. She realized her error as a second row of breasts pushed into her shirt, growing until they rested snugly between her original tits and her udder. Lousy curse let her get all the way through the sentence, then stopped her right before the end. Maybe she should just start with saying "yes" or "no" for questions like that, so she could catch moments where she'd try to tell the truth.
Ms. Davis took over the conversation from there. "We're not sure why, but this condition seems to have a drastic effect on the mammaries, regardless of hybridization or gender. While males have historically not grown more than just nipples, Kyle's case is one example of how extreme it can sometimes be. Now, how about Janet next."
"Does your family have a specialized milker for your udder?"
"Janet," Ms. Davis quickly interjected. "Questions about the condition, not Jennifer's personal-"
Jennifer didn't really mind this question, since she had no idea. If this reality didn't give her a machine at home, she might as well lie one into existence. "Yes, my family got me a milk machine designed for dairy cows, modified down to work for me." Her heart momentarily fluttered at the thought of experiencing what a real cow would experience, then she shook it off. That whole love-cows question Tina had might've done a number on her.
"Uh, thank you for answering a personal question anyways. How about we get one more question, and make sure it's about the condition." Several hands went down, then Ms. Davis picked one out. "Arnold."
"The condition has shown signs of modifying speech, growth of a tail, and other minor features. Seeing as you're part-cow, have your nipples been affected?"
The teacher practically hissed as she spat the student's name out. "Arnold-!"
Jennifer sighed. She knew 'no' was off the table. Her face flushed as she responded, "Yes, they're a little cow-like, I guess." She felt her nipples extend into her shirt, creating noticeable bumps that practically tented the fabric. Then, they folded inward and continued to grow. She half-wanted to feel herself or raise her shirt just to see what was happening, but she realized her mistake. Cow teats were their own containers, and normal nipples weren't. They needed to be a certain length to even be a "little" cow-like. Wait, did she know that before her changes, or were those the new memories of her life?
"Arnold, you knew full-well about the condition of that area of Jennifer's body, and I said no personal questions. You've earned yourself a detention." She turned back to Jennifer. "Thank you for your time, please return to your seat."
Relieved, Jennifer returned to her seat. Barring any more questions in class, lunch was next, meaning she could check out one of those milking rooms, or maybe she could mess with some more people. Perhaps she could modify her own body, or that of humanity.