Four months after defeating Sebastian Moran, Sherlock must deal with domestication, the changes in his relationship with John, and Mary Watson bringing a mystery to him. Sequel to "The Full House".

SPOILERS FOR HIS LAST VOW: Now that her engagement is over, Sherlock wishes to indulge in his long-held desire to pursue Molly Hooper. But recent developments- such as his revived drug habit and gunshot wound- makes the process difficult.

Sherlock is still shaken up by his reaction to Irene Adler and her riding crop and can't figure out why. He drags John to go meet Irene, who is happy to help design an experiment which ultimately involves lots of toys, Sherlock tied naked to a bench, and John cataloging responses on a chart because Sherlock wants to be all scientific about it. It's hard to just observe, though ...

BAMF!John gets a chance to show off a bit during a case. Sherlock realized he likes being manhandled just a bit more than he ought to for someone who insists he has no interest in his flatmate. It turns out John specializes in deducing attraction, though, and Sherlock can't keep it a secret forever . . .

Only one thought rushed through Sherlock's mind as he took his seat on the private plane – I should have told him. Angst and feels set at the end of His Last Vow.

Sherlock believes profanity is the refuge of a lesser mind. John tries to prove that profanity and precision both have their place. John talking dirty can get *anyone* going, even a "married to his work" detective . . . and then Sherlock returns the favor. (He's not very good at it.)

When John is angry at Sherlock and slaps him, the duo discovers there is indeed a way to turn Sherlock on. PWP / shameless smut

Mary suggests that they best way to spice things up before she and John get married would be a threesome. With Sherlock. Rated M for a very good reason.