Subject: Love. Sex.
Characters: One boy and one girl.
Sketch:
Fade in. We see the sign of a sex shop and the day brimming through.
Cut to home, apartment, house - whatever. The guy presents his girlfriend a new sex toy he has bought for her. It's two decks of cards. On one it says, "Pleaser" and on the other it says "Pleased". The instructions say:
Whoever is to manipulate the deck should take the "Pleaser" deck. Whoever is to be pleased, should take the other and insert it next to his genitalia.
You kind of get it. The guy goes in a different room and starts flourishing, and you hear the girl from the other room getting pleased.
Gear:
It would raise the production value a lot if you make a nice box for it with instructions and all.