You need to role play, what kind of role play idea will he like? A school girl? a naughty nurse, you get the picture, dress up as that under the coat and strip for him, and then wear sexy lingerie under for the lap dance. Make it a whole experience for him. Whip out some cuffs and cuff him to a chair, tell him he can't touch you in certain places until you are done. It will drive him crazy, but he will love it.