I think you're mine now (Patreon)

Hear me out: Fantasy AU where Stiles is a witch without a familiar (a rare thing for his age, as every wizard or witch finds him in early adolescence) and Derek, a werewolf, was cursed to remain in his wolf form.

Cora seeks out Stiles to help her brother, but when the two meet, something snaps and Derek becomes the familiar Stiles hasn't had yet.

Who knows how their relationship will evolve after this...