James' beamy smile does not fade right away.

In fact, it turns into something of a quick grin, before it's replaced with utter solemnity.

Mock solemnity, but solemnity nevertheless.

"Ah, of course," he says. "The lady doth deserveth her reward for being so ... well, brilliant."

He laughs.

"You'll get the largest cone you eat.

"Congratulations, Lily. I knew it'd go very well. Not once did I have any doubt about it."