They invite the guys over for an end of the Summer picnic and some backyard games.The boys think that sounds like fun, but they didn’t know what they bargained for. When they arrive they find Jeannie has donned a referee uniform and with whistle in hand she announces the rules of the game. The number one rule is the guys must compete in the nude while the clothed girls chose partners to assist in the various types of competition. For the naked guys it is an afternoon of embarrassing athletic events made difficult by the girl's devilish behavior.