Dean and Cas have been dating for a while now, secretly, but what will happen when Cas' mom and Dean's dad gets married and they become stepbrothers?

Castiel never liked people, and although he has nothing against his college room mate Dean personally, he finds that Dean is no exception. But Dean seems to like Cas like no one ever has before, and Cas is starting to think maybe people aren't all bad.

THIS IS NOT MY BOOK!!! I HAVE NOTHING TO DO WITH THIS BOOK!!!! The original book Twist and Shout by the author from achiveofourown (Gabriel (AO3)) ALL THE CREDITS GOES TO GABRIEL AND STANDBYME!!