deancasbigbang:

Title: Between the Folds of Submission
Author:  destimushi
Artist: purzelndesbaeumchen
Rating: E (Explicit)
Length: 45,273
Pairings: Dean Winchester/Castiel Novak
Warnings: serial killer case, D/S biology, Dominant Dean, Submissive Cas, suspense, kidnapping, subspace, hand-feeding, spanking, facial

Summary: Castiel Novak, the city’s only Submissive homicide detective, balances navigating a career believed to be a Dominant’s domain and keeping his physical needs in check. When another team drops the ball and a series of gruesome murders lands in Castiel’s lap, it’s simply another day on the job. 

Only this isn’t like any case Castiel has ever worked. Collecting clues and running leads gets him nowhere, until the day he receives a phone call from Dean Winchester, Editor-in-Chief of the popular magazine Cruisin’ Classics. It’s a phone call that has the power to blow the case wide open. 

Castiel races against the clock as the killer ups the ante, but Dean—rich, drop-dead gorgeous, and a famously unconventional Dominant to boot—proves to be a distraction he can’t afford. As the danger grows, Castiel finds himself torn between upholding his beliefs and giving in to his desires. Can he resist his urges long enough to find the killer, or will his biology consume him?

Read on AO3
Check out the art on Tumblr [NSFW]

YOU ALL NEED TO CHECK THIS FIC OUT! THE writer is amazing and a friend of mine and serious this is one that will keep you on the edge of your seat the whole way through!