Edinburgh Festival: Robert Schimmel

Rotund, balding and middle-aged, Robert Schimmel does not look like your average stand-up. So the fact that his material is pure, unadulterated sex-talk makes it all the funnier. 'What about the guy who invented phone-sex ads?' he says in one of his more quotable moments. 'Anyone who can get you to pay them money to let you masturbate has got to be a genius.'

Assembly Rooms (venue 3), 54 George St (031-226 2428). 10pm. To 3 Sept (not 30)