Specific cursed!Dean wincest fic, not the jeyhawk one
I remember this fic so well - everything except for the title. Dean starts getting fucked by some invisible entity every night, and they discover its not one entity, its different ones, sometimes more than one every night. They try to break the curse, but no dice. It eventually turns out that anytime Dean insspires lust in someone, that lust visits him at night. Turns out he's been cursed by a warlock, the father of a witch he'd slept with after they'd taken down an evil coven together. The dad thought he'd spurned her or something so cursed him to get revenge. In order to break the curse, Dean has to have sex with someone who truly loves him, angst angst angst, they bang, curse broken, etc. Amazing fic, I thought I remember it being popular but can't find hide nor hair of it now, despite extensive Googling. Please help!