Damn Well Dancing

From a fic whose name I can't remember for the life of me. :/ It's a tender scene between John and Sherlock, when they're hugging in the middle of the flat and sort of swaying side-to-side, and John's thoughts include the phrase "damn well dancing," the only thing I can remember haha. But I obviously loved the fic, so if you know which one I'm talking about, please let me know! Chars belong to BBC, Freeman, Martin, Gatiss, etc.