Part I: Nobody In Particular -- Chapter 1: Lazarus Rising

Tabitha is the black sheep of the Winchesters: she works for the FBI. But when her brothers need her, she finds herself hunting with them again. Now she’s trying her best to help her brothers, but that’s easier said than done. So is trying to rebuild the relationship with them when she finds herself becoming closer with an angel instead. Starts in season 4 of Supernatural — SisterFic and eventual Castiel/OC