You are invited to one of the hottest poolside parties without a condom. You don't even need to bring anything. Just grab a cup and fill it to the brim with your favorite beverage. There is only one thing to remember. The color of the cup you choose - blue for the top, purple for the bottom, green for the versatile, and orange for the indecisive - will let others know what mood you're in and what you're looking for. So come on in. The water is fine. Zackery Rees, Alex Hawk, DJ, Roman Maverick, Silver Steel, and Christian Matthews show you how to play the game of Flip My Cup