SALT AND STAKES - SUPERNATURAL/BUFFY CROSSOVER Fandoms Included: Supernatural, Buffy Crossover Info: The universes are mostly the same, except that Buffy, Faith, and the gang exist in the same universe as Dean, Sam, and the Winchester demon/angel drama. On one of his hunts, when younger Dean ran across Faith, and the two have crossed paths, kicking ass and dating off and on ever since.