Yeah, just flipped over your LJ and we really do have similar interests! *friends back happily*

How do they become psychics?
I read a fic once where Mary actually gave her sould and that of her second-born-son in order to save Dean as a baby. Creepy theory

Um, I figure it's something that the demon does to them. He just chooses his minions and gives them abilities. Or something.

Heh, who knows.