Masturbating before coming over to see me is NOT acceptable behaviour, and a good spanking is always in order for that. He gets it good, and it hurts more when he's not all pent up. He also just got out of the shower, so that's double the sting. It's not the longest spanking I've given him, but it clearly hurt like it was - and, yes, I did use the paddle at the end. I find that always makes him remember a little bit longer...