Prompted by powdered_opium, I recently wrote a one shot based on the concept that Sherlock "used to be a ballerina" (although in the commentfic thread it was prompted, they and romanaorfred proceeded to do something far funnier and better with the concept than I).
Follow the fake cut to read it here
( or the real one to read it here, if you prefer DW/LJ to AO3! )