Spesific fic

[gingerliscious.livejournal.com]

So I was sure that I saved this fic, but apparently I didn't.... It's about the boys being at Bobby's, when an injured Castiel suddenly arrives. He is unable to heal himself because of a curse, and they transfer it to Sam because the only way to release the curse is if it's put on a human. Dean, of course, objects but allows Sam because Sam has a high pain tolerance from his time in hell.