I'll just get straight to the point. Basically, Sam tells Cas to watch Dean and make sure he doesn't drink his weight in beer. Cas switches to a female vessel for the night, but he drinks something that makes him feel lust. Long story short, they have sex, Cas gets stuck in the vessel and finds out he's pregnant. [mpreg(?), genderswap, fem!Cas, non-canon!Destiel, pregnant!Cas]
Rated: T - English - Hurt/Comfort/Angst - Chapters: 2 - Words: 6,642 - Reviews: 11 - Favs: 25 - Follows: 36 - Published: 11/27/2016 - Sam W., Dean W., Castiel