Oh. This is just lovely. As always, you've nailed the character-voices. Your Sherlock is near pitch-perfect, right down to his behaviour. (John is damn perfect as well, but Sherlock seems to be more difficult to get right.) This line strikes me as particularly perfect for some reason: "Please," Sherlock said. "As if you were enjoying insipid conversation and the condescension of your sister? I should be feeling rather rescued if I were you. Love their bickering in general.

I didn't care much for the dinner scene, but I think that is mostly because that sort of "know everything about a person at a glance"-thing irks me even in canon. Sherlock's comment about Harry and Clara is less jarring than John's observations regarding Richard. They feel a bit forced, somehow. Might just be that I am not used to John making such leaps of logic. Nice to see Sherlock rubbing off on him though. :)

Also, this was damn hot. I loved the bit about Sherlock's educated inexperience and the way that they remain themselves all through the sex. (Always true of your fanfics, but I've seen too much fic lately where that isn't the case, so it's doubly nice.)

Martin Freeman (or Morgan, god, I always mix those two names up) is the tiniest ever, btw. So, strictly speaking it is not Sherlock who is tall.