The fifth grade teacher had just finished a definition of the word sex. She asked if the class had any questions.
Billy said, "I had a girl dog, and a boy dog hopped on top of her, and a month or two later she had puppies. Was that sex?"
The teacher replied, "Yes, that was sex."
Susie said, "I have a girl and a boy cat, and they wrestled a lot, and after time passed she had kittens. Was that sex?"
The teacher replied, "Yes, that was sex."
Little Johnny said, "I watched a movie where three guys wrestled with Sylvester Stallone. Was that sex?"
The teacher replied, "No, that was not sex."
"No shit," said Little Johnny, "I bet you're right, because it would sure take more than three guys to screw Stallone."