Sokka doesn't mind her mouth full - even if it makes grinning harder. He still makes a valiant effort!

He's bending for her, too, not wanting her to have to stretch too much. When she stumbles, his hands tighten on her hips to steady her, but once she's braced against the wall, palms rise to stroke against her ribs.

It's outside her clothing but the fifteen year old in him is squealing with absolute joy.