The Applause

There are two females and two males involved. Each female has four on the floor facing opposite directions. Each male is on his knees back to back. Both males simultaneously pork the respected females from behind. The clapping sounds made from male to female and male to male (thats why your back to back) creates an applause.
Warning: do not try with clap-on lamps

Bro, "the applause" we got last night was fantastic.