Drouk

http://archiveofourown.org/works/383559

While Sherlock and John are being held prisoner by Moriarty, John goes into heat. Jim chains them up just out of reach of each other and plays with John himself.
I never cared much for Omegaverse. Then I met this prompt on the kink meme and we had filthy sex in a public bathroom. This fic is my walk of shame.

Link to podfic included.