You were a mouseboy sneaking around a giantess's house. But one day, you find yourself caught while stealing cheese. It wasn't a giantess that had spotted you, but a catgirl! You're terrified of her as catgirls usually eat mouseboys. She picks you up, and smiles at you. You struggle to break free, and even bite her thumb. However, it doesn't seem to cause her much pain, if any at all. In fact, she doesn't even seem all that mad at you.

Hey, no biting, okay, Mousey? As my new buddy, we can't bite each other!