You Only Live Once (WinchesterReader![fem] x Castiel)

(Y/n) Winchester. John Winchester was her father, Arianna Thomas was her mother. (Y/n) grew up without her father. She never knew about her father or her half-brothers. That was until her mother died. Of course it wasn't a natural death. Something killed her and two boys came to ask some questions. That's when her life took a turn.