I am looking for a story I read a while back in which Sam is upset because people stop writing fan fic portraying him in a positive light. It was a cracktastic story - I think Dean goes looking for some fic to show that people still like Sam and comes across the Samifer genre, much to Sams dismay. They get into a kind of competition to see who gets written about more/better. I believe Castiel is in it too - he stays up nights reading and asks Dean horrifying questions the next day. I can't remember if there's an actual pairing. Sound familiar to anybody? It's not Stranger Than Fiction BTW. The one I'm failing to think of is a crackier less epic take on the theme.