Castiel is utterly convinced he can't love anyone, but Sam, so when a strange occurrence at a carnival shows him otherwise, he doesn't know what to do.
When Dean touches a strange mirror, he's whisked away to one alternate reality after another and it doesn't take him long to realize the universe is trying to tell him something.
When Sam Winchester prays for his brother, Castiel is finally sent on his very first assignment. But what should be a simple love match turns into much more and Castiel finds himself risking everything to ensure the happiness of his extremely frustrating charge.
If Castiel doesn't find a mate soon, the council will assign him one. And Dean's not about to let that happen.
A weird box steals memories and Dean is caught up in the mess.
When Castiel loses his job, he resorts to making wing fetish videos to make cash, Dean really likes them.
Castiel is a fairy. Dean is a visiting human prince looking for a political marriage.