Pete, Kitty
It didn't register what Kitty was doing until their lips collided. Still in "act natural" mode, he resisted doing a hands up motion and went along with it instead, kissing her in return as his hands rested on her waist like they always belonged there.
He kept telling himself it was part of the job. That's why she did it.
They're only acting natural. A fact that he didn't mind at all.