Title: Where Overreaction Meets Sam Winchester And They Live Happily Ever After
Author: baibaba
Rating: PG-13
Pairing: Dean/Castiel
Spoilers: None, AU
Warnings: None 
Word Count: 5,589
Summary: Human!AU. Dean is suddenly eating healthy and the world (i.e. Sam) is not prepared for such change.

(Link to AO3)