"Did you know that you have a piece of material in front of your door that says, 'come on in'" [vampire!AU, WILL have explicit sex scenes]

It's Castiel Novak's first semester away at school. Against his parents' wishes, he attended a secular university and was basically kicked out of his home. Not even his twin sister, Anna, will speak to him anymore. Only his older brother, Gabe, is still involved in Cas's life these days. Still in the closet, Cas soon develops a crush on his roommate, Dean. Too bad he's straight.