Dean: "Alright, we need a virgin. Do you have any idea how hard it is to find a virgin these days?"

Sam: "What, like, for a spell or something?"

Dean: "Yeah, we need one for a spell. Someone's been messing with the Angel of Death, and we need someone pure to, you know, balance the cosmic scales or something."

Sam: "And you think a virgin is gonna help us with that?"

Dean: "Well, apparently, that's what the book says we need."