Paddy and Mick are discussing Paddy's forthcoming wedding.. "I'm not sure if my future bride is a virgin or not" he said. Mick says,"Oh, there's an easy test for that. All you need is some red paint, some blue paint and a shovel.
You paint one of your balls red and the other blue. On your honeymoon if she laughs and says, 'Those are the funniest balls I've ever seen!' you hit her with the shovel !"