Sexual act/position from behind. Slip your manhood full tilt into your lady's cooze, then just before you jam your thumb into her pulsing bung-hole while grabbing a fistful of her butt-cheek, you raise your free arm like the champeen bull rider you are - then say, ..." you fuck just like your little sister!" If you ride that bitch for 8 seconds, you are world class in anybody's book!
After more than a few Tequilas, I went home, listened to the wife run her mouth about where I've been, sweet-talked her into the sack, got into "the position", then gave her a Junior Bonner she'll never forget!