It is domestic. They've been that say since well before they decided they were dating (whatever that means, really. Because they're doing the same things they've always done except now they've put a word to it, mostly). John is shocking okay with it.
He takes his kiss, ignores the dog who suddenly sounds like he's being ignored (the spoiled thing!), and pulls Q in further so he can actually close the door behind him. And maybe press him against it for another kiss. "What sort of present?"