Derek puffs up proudly when Dean eats the pie, and then he goes over to Noah and noses at his cheek.

Castiel lifts Dean up and Derek lets out a bark in protest, thinking that Castiel is going to take him away, but he shuts up when Cas sits down on the chair.

Derek hops up onto the chair even though he's way too big for such an action, and flops across Dean's lap and Castiel's legs. It's a decision that he sort of regrets at Castiel's unsolicited offering of information.

He huffs and then looks over at Noah, cocking his head to the side like he isn't sure what they're supposed to do with the information.