Dean wasn't ticklish, but he was already laughing and couldn't seem to make himself stop, so it wasn't much different. He retaliated, though, splaying his had over Seamus' abs and then tickling in earnest. He was thinking, though, it hadn't really been much work to make Seamus look good. He thought he was thinking it, at least, he didn't realize he was slurring, "Didnttakemuch."