He's smiling broadly now, delighted by her delight, so the kiss catches more of his lips than perhaps she even intended. Definitely more than he wants, however.

The smile doesn't fade exactly, but freezes, and he stills. Obviously he's uncomfortable, but obviously too he's trying to hide it, trying to move on, trying not to make her uncomfortable.

He turns his head away.

"Even a man as handsome as me has to cheat a little sometimes," he says, trying to play it off. "We were having fun and I wanted to keep it that way."