He rises and catches Watson's hand, and then decides that isn't enough contact, and leans in to steal a kiss that tastes of breakfast and it's fairly marvelous. He really will be a ridiculous pile of sentiment until the newness wears off of everything.

"As could I," he says, leaving out the part where he's been traveling; probably better not to bring it up overmuch. "The temptation of lying about with you while our fingers turn to prunes only makes the idea all the sweeter." He kisses Watson's fingers and then leads them to the bathroom.