Mary found lion John asleep on the kitchen floor, but nothing in the way of meat in the fridge.
She decided to pour some of the human vial into a bowl and put it next to John for him to drink when he woke up. Then she went out to get some food..
She put on baggy sweatpants and a hoodie, which she put over her lion ears, and drew tight around her face. It was still early in the morning, and she was able to get a dozen roast beef sandwiches from a drive thru with nothing more than the teenage cashier telling her "cool face paint."
When she got back home, she found John as a naked man, crying at her kitchen table.
"What the fuck!?" half-lioness Mary growled.
"I killed a man yesterday!" John sobbed. "And mutilated his body!"
"So?" Mary hissed. "He had it coming. You also had the wildest animal sex fucking your girlfriend here's pussy that any man or any male could imagine!"
"Are you crazy? John gasped. "This magic potion, or whatever it is, is affecting how you think! Turn human again so we can talk about what we're going to do. I didn't think this was the direction this relationship was going ..."
"Wow, I can't believe what kind of pussy you're being ..." Mary huffed. "But fine, I'll go get the vials ..."