Title: The Alpha Next Door
Author on ao3: Destielshipper4Cas
Pairing: Castiel/Dean Winchester
Word Count: 19,736 / ?
Notes/Warnings: Past Abuse, Past Rape/Non-Con
Summary: When Cas is placed in WitSec, he gets a fake secondary gender designation to go along with his new name, ‘Jimmy.’ All he has to do until the boss of the omega trafficking ring he escaped is behind bars is keep a low profile, always apply his alpha scent, and not fall in love with an alpha. Well—two out of three ain’t too bad…
Dean has never had a crush on an alpha before. Along comes his new neighbor, Jimmy, an alpha who is alphasexual. There’s just something about him, and to his utter confusion, he finds himself falling for an alpha for the first time in his life.
((Read it here on ao3))