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, and you reach around and cup each one of her breasts in your hands, and then you whisper in her ear, "Boy, these feel just like your sister's" and then you try to hold on for 8 seconds."