It was wrong. His dad told him that when he was nineteen, drummed it into him. "I don't want to see you and your brother doing anything like this ever again. Understand, Sammy?" Sam understood. And he hasn't even seen Dean since...but now Dad's missing, and Dean's back, and Sam can't help the way he feels. AU S1, Graphic Wincest/Weecest, established Wincest relationship.
Supernatural - Rated: M - English - Romance/Angst - Chapters: 33 - Words: 250,595 - Reviews: 341 - Favs: 553 - Follows: 601 - Updated: 2/4/2017 - Published: 7/15/2013 - [Sam W., Dean W.] - Complete