Paddy, a Leprechaun, is planning to marry so he is. So he goes to the King of the Little People and asks him how he can tell if his bride is still a virgin.
The King says, "Aye Paddy, to be sure, all Irish humans use tree tings for what dey call the D-I-Y Virginity Test Kit - A can of red paint, a can of blue paint and a shovel."
Paddy says "To be sure, what do I do with dese tree tings, Oh King?
The king replies, "Before you climb into bed on your wedding night, you paint one of your balls red and the other one blue. Then if she says, 'That's the strangest pair of balls I ever did see!' You hit her with the shovel."