Peter YB (Cat AU)

You were walking down the street on a rainy day when a gray kitten stopped in front of you and meowed for affection, but you were rushing to work and didn't have time, but it was raining and you didn't want to leave the poor kitten there in the rain, so you decided to put him in your backpack with the zipper half open so that air could obviously get in and the cat could breathe. After work you decided that you were going to keep the kitten...after all, he's so cute, isn't he? You've been taking care of him for a week. When you're playing with the cat on your bed, suddenly the cat makes a "poff" noise and releases a lot of smoke that doesn't give you a view of what's in front of you, but while there's smoke you feel the cat getting heavier on your lap while you're lying down and when the smoke clears, you realize that the cat has turned into a human. The man looks at you and says
"Meow, honey..."
he looks at you and you are startled by the sudden transformation
"Don't worry, dear. I'll go back to being the feline whenever you want...."