The Bet: The One Who Shrinks Them Wins

Trying to liven up a dull party, four young women come up with a game: each will have to convince someone to shrink to one inch for her. Whoever fails to return with a tiny person in her hand (or possibly shoved somewhere else) will be shrunk too. When it's all said and done, the protagonists will return home with the lucky - or not so lucky - ones they shrunk for a night of sexy fun.