"Hmm...I wonder..." Mary thought.
She reached for the vial box, one arm on her stomach. She could barley bend over, her belly was so huge.
"If I drink an animal vial while I'm pregnant..." She said to herself. "Will the baby be an animal? Or maybe if I drink half the vial, the baby will be an anthro? Maybe the baby will stay human and I become an animal?"
Mary looked a several of the vials, finding one labeled "Vial of Inflatable".
"Would this make the baby a...ballon of some sorts?" She thought.
So many questions and the only thing that could answer was experimenting.
"Well..." Mary said. "Here goes nothing!"
And she drank the...