"I'd really like to give it all a try someday before I die, perhaps even while I'm still young." Confesses the nun.
They drive on for a little while longer. "It would have to be with someone who was not married, because I wouldn't want to commit adultery." The driver assures the nun that he is not married. "I would have to go the back route, they may examine my body after I die and I'd hate for anyone to find out."
The driver pulls over and offers the nun a ride. They get it on and drive a little further. When the nun points out that her stop is soon the driver feels the need to confess that he's married. "Don't worry, its not a sin to you because you didn't know," He says.
The nun asks the driver to stop and gets off the bus. From the curb she says "Don't worry about it. I have a confession too. My name is Marvin and I'm going to a costume party."