Kissed by a nun?

While sitting in a taxi, a nun notices that the cabbie is staring at her. “I don’t want to offend you,” he says, “but my fantasy is to be kissed by a nun.” “Well, all right,” says the nun. “But you have to be Catholic and single.” The cabbie says he is, so the nun plants a passionate kiss on his lips. The man is momentarily ecstatic but then starts crying. “What’s the matter?” asks the nun. “Forgive me, Sister, but I have sinned. I lied to you. I’m married and I’m Jewish.” The nun says, “Oh, that’s OK. My name’s Kevin and I’m off to a fancy dress party.”