Jace shrugged at Mark's comment. "We talk to them, we just don't understand what they say the way you can babe." As good as the Chocolate Chip Oreos were - Jace was probably enjoying the cookies Mark had made more.
He was enjoying the peaceful feeling that filled him as they laid there watching the movie. And it didn't bother him at all when Alec laid his head on his shoulder, he just finished his drink and stretched across to hand Mark his glass while asking "Can you put this over there with Alec's?" before turning his attention to his brother.