AU Sis!Fic Starts end of S3 then S4, continues with show, with some plot twists ;) It's always been Sam, Dean and Katie. The Infamous Winchester siblings. Deans the oldest, then Sam, then Katie. Will follow show and storyline, just with my OC OC- Katie Winchester 4 years younger than Dean, 2 years younger than Sam. Physical Features- Dark brown Hair, dark brown eyes, 5'5", Traits- stubborn, bookworm, smart, pretty