This bloke gets on a bus and sees a nun he rather fancies. Something to do with the black stockings maybe. Anyhow, he knows that if you don’t ask you don’t get, so he turns to her and says: “Sister, will you have sex with me?” “Oh no,” she says, shocked, “I can’t possibly do that. I’m married to God.” Well, he’s disappointed, but he sees her point, so he thinks that’s that. But when he gets off the bus, the bus driver stops him – “Hey,” he whispers, “I know how you can get to have sex with her!” “You do?” the guy says, “quick, tell me!” “Every Saturday night she goes to the cemetery to pray, and all you have to do is lie on one of the tombstones dressed in white robe with a false beard, tell her you’re God, and she’ll have sex with you!” Well, he’s skeptical, but why not? So Saturday night sees him in the cemetery. Sure enough, the nun comes in and begins to pray. “I am God,” the man declares, keeping his hood low about his face, “and you must have sex with me.” The nun agrees without question, but begs him to restrict himself to anal sex, as she is desperate not to lose her virginity. Well, he’s pretty desperate too, so he goes along with it and enjoys his romp with her. As he finishes, he jumps up and throws back his hood with a flourish. “Ha-ha,” he cries, “I’m not God, I’m the man in the bus!” “Ha-ha,” cries the nun, “Guess what? I’m the bus driver!