You all may have heard this one, but....

here it goes. There was a farmer with three daughters. I had no place to stay and he let me stay at his house on one condition: I could not sleep with his daughters. I disregarded that and went to each one of their rooms one by one. In the morning, the farmer said to the first daughter, "Why did I hear screaming in your room last night?" She replied, "You told me to scream when it hurts." He asked the next daughter, "Why did I hear moaning in your room last night?" She replied, "You told me to moan when it feels good." He asked the final daughter, "Why didn't I hear anything in your room last night?" She replied, "You told me not to talk with my mouth full!"

Never heard it before, but it was pretty good. .