So when I see this
I sort of picture Lestrade saying something like, “While we’re here, why not make it a vacation, yeah? Come on then, let’s get a picture of you two.”
And Sherlock protesting, saying it’s ridiculous, they’re here on a case and it’s not a vacation, so Lestrade insists that fine then, at least take it to remember the case.
So John gets in close, not minding anyhow, because what the hell, he might as well humor Greg a little
And so he puts his arm around Sherlock’s shoulder
And Sherlock tenses for a second, looking down at John, but John is just looking at the camera, small smile already in place,
And Lestrade says, “Ready?” and he looks like he’s having issues with the camera,
So Sherlock gives a little smile and feels John give his shoulder a squeeze, and it actually turns out to be a really nice photo, so Sherlock keeps a copy of it on his dresser just because.
And John knows that he does but he doesn’t say anything about it because nothing needs to be said.