Tiffany's best friend other than Charlotte Pincer (the harpy who's appeared in quite a few of my pics) is Pojo Potosk, the werewolf son of her mother Britanny's former enemy and current friend, Jetta. Unfortunately for Pojo, being a werewolf with supernatural strength and speed doesn't mean you're going to be good at sports. As shown here, Tiffy has both brains AND brawn, and is apparently pretty decent at sports to boot!
