Werewolf? No McCall, I'm A Bloodsucker
Alice Stilinski was Stiles fraternal twin and had a crush on Scott McCall. Problem? He hasn't gotten over Allison and only sees her as a little sister! What happens when at a party with her friends, she is attacked and changed into an bloodsucking beast? Only God knows how she will survive, wanting to drink blood every few minutes and Scott's new interest in her.
[Scott McCall; Vampire Diaries-Teen Wolf FanFic]