john, after having had regular sex with sherlock for a long time, probably: why….are you trying to seduce me, mister holmes?
sherlock, coyly, while lounging with his shirt halfway unbuttoned: i dont know What you’re talking about
Your headcanon makes me laugh because i imagine spy being the only merc that cant play an instrument. So many other talents! But even better that he plays accordian and just doesnt admit it, because where is the seduction in an accordian!?- he thinks