Lily stumbled through the facility, ducking through the doors as she was led out of the small room she'd transformed in. Everything hurt, almost her whole body had changed, she could feel her internal organs shifting and changing as she developed a cowtaur's biology. Around her bustled several scientists, murmuring to each other about how pronounced her change was, how unusual this all seemed. She could barely stop herself from crying, especially when they asked her questions.
"Would you eat grass?" "Well, obviously, wouldn't you?"
"Where would you go to the bathroom?" "What's a bathroom?"
"Wait, where do you pee and poo?" "Uh, where I'm standing, duh?"
Why were they asking her such obvious things? It's not like her mind had changed at all, she just looked different now!
Eventually they led her to what looked like a small barn despite being a room in the complex, the floor lined with straw, a food trough at one side of the room. Beside it they'd laid out a table of normal fare, sandwiches, orange juice, the like. She wrinkled up her nose and ate the real food, bending at the waist and clutching to the side of the trough as she instinctively buried her face in it, chewing on the delicious straw inside.
"OK, Lily, we're just going to run some t-" The scientist faltered as he noticed the smell, and noticed what she'd just done. Famous actress Lily Scott had just laid a horrible cowpat in the middle of the floor, seemingly not even thinking about where she was. She glanced over her shoulder at him, not sure why he'd stopped. "Some tests," he finally managed.