She lingers. Physical contact, physical affection has never been difficult to have with Harry before, she's given him every hug she's ever thought he needed. But it's been years since they were hiking together on the hunt for Horcruxes, years since she last had to watch herself around Harry so as to not upset Ron, and years since she and Ron just did not work out.

So she lingers, because sometimes there's a dumb part of her that wonders if they will ever break this game of emotional chicken they've been secretly hiding from each other. Or, if it's one-sided, she'll just take it to her grave.

"You laugh, but I know McGonagall has to do with a board of directors still and I'm sure they'd all be charmed about the idea and appeal of Harry Potter teaching their children spells." After a beat, she adds, mercilessly: "You might have to do more than Expelliarmus with them, though."