They had to save Lucifer from Amara. Had to. Because it was Cas, too, who was there. But how could Sam stand to do it? Spoilers for S11E21 and E22...added chapter 2 because the show is totally ignoring it.
Supernatural - Rated: T - English - Drama/Angst - Chapters: 2 - Words: 3,755 - Reviews: 13 - Favs: 24 - Follows: 13 - Updated: 5/19/2016 - Published: 5/17/2016 - Sam W., Dean W., Chuck S./God, Lucifer - Complete