Two cowboys are out on the range talking about their
favorite sex positions.

One says "I think I enjoy the rodeo position the best."

"I don't think I have ever heard of that one," says the
other cowboy.  "What is it?"

"Well, it's where you get your girlfriend down on all
fours and you mount her from behind.  Then you reach
around and cup each one of her  breasts in your hands
and whisper in her ear, "Boy, these feel just like your
sister's."

Then you try to hold on for 8 seconds.