When you and your fiance are having having anal sex in view of a window. What happens is that you pull out quick and smoothly and have a friend quietly pull in to your fiance's vagina. Then what you do is that you go outside to the window where you can see your fiance having sex and you knock on the window and wave. Meanwhile, your partner is about to ejaculate, but before he does, he pulls out and quietly spits on your fiance's back, tricking her into thinking that he has fully came. Then when she turns around to see who the mysterious man that was fucking her, he blows his semen in her eyes, denying her of finding out who was having sex with her. Then when she goes to the bathroom sink, continue to give her anal sex in front of the mirror and when you are finishing, yell "HOUDINI!" and pull back hard on her hair.
Eric: That was the most perfect Houdini ever!
Tom: Yeah, but doesn't make you sad that my fiance is no longer my fiance?