One day a nun was standing on the side of the road waiting for a cab. A cab stopped and picked her up. During the ride she noticed that the driver was staring hard at her.
When she asked him why, he said, "I want to ask you something, but I don't want to offend you."
She said, "You can't offend me. I have been a nun long enough that I have heard just about everything."
The cab driver then said, "Well, I've always had the fantasy of having a nun give me a blow job."
She said, "Well, perhaps we can work something out under two conditions. First, you have to be single, and second you have to be Catholic."
Immediately the cab driver said, "Oh, yes! I'm single and I'm Catholic!"
The nun said, "Okay, pull into that alleyway over there."
The cab driver pulled into the alleyway and the nun went to it. Soon after the nun was finished, the cab driver started crying.
The nun said, "My child, what's the matter?"
He said tearfully, "Sister, I have sinned. I lied, I lied...I'm married and I'm Jewish!"
The nun replied, "That's okay. My name's Jeff and I'm on my way to a costume party!"