The thing about Kate, is once you get her riled up enough she's pretty damn good at hiding her emotions. So, despite the amusement on his face, she still looks as scolding as they come.

But since he's going to move in like that, she reaches around and gives his backside a good pinch.

"When are y'just gonna admit it?" she mutters, stopping only when her calves hit the bed. "You like it."