Because Loki is a contrary asshole, he gifts Clint Barton with wings, of all things, during battle. The wings in and of themselves are one thing, but the way they react to Phil is another.

Incubus - a male demon who feeds off of sexual intercourse with humans. Kaminari hasn’t been able to get the word out of his head all day. Not since he learned it at 11:28 am in his mythology and demonology class, anyway. To him, it sounds a whole lot like an opportunity. Kaminari Denki is hella tired of being a virgin, so he summons a demon to help him out. But maybe he should be more careful with what he wishes for - he's going to be absolutely ruined for humans after this.

The Winchesters have been subjected to a lot of things in the name of hunting, but the result of a spell-gone-wrong on their latest case is still pretty high on Dean's weird scale. While their father is out searching for a way to undo the magic, Dean's stuck in a cabin in the middle of nowhere, trying to deal with his bitchy teenage brother and his own increasingly un-brotherly feelings toward him. Who'd have thought Sammy growing a pair of giant bird wings would be the least of his problems?