Dean could see the blush on the back of Seamus' neck, and he laughed a little, shaking his head. He chose not to comment on it for once though, since he wasn't any better off, even if it wasn't as easy to tell. He did give Seamus' shoulder a pop though, carefully. "Maybe I should just learn how to do this properly after school. Probably make loads of cash." Or not. It wasn't the kind of pop you gave to a dislocated shoulder, just a little crack of joints.
He also refrained from a joke about happy endings or the like.
He worked his hands lower, having an easier time from this angle, but keeping his hands carefully above ass-level. "Not that clever. But I suppose. I think I'd like the dog better - then I could throw a stick for you."