Ball and Chain Novelties new adult game for 2013. Think Sex the ultimate sexual card game. Sample cards: number 1 role play card to number 24 reverse cowgirl position. Object:The object of the games is for each player to take turns uncovering matching pairs of cards. The pictures on the cards represent foreplay or sex activities that are to be performed. The box instruction includes two game play options. Note to players: in order to take full advantage of the activity cards, make sure you first plan ahead by having items on hand such as ice cubes, flavored body toppings, blind folds, massage oils, and arousing objects such as your favorite sex toys. By doing so, the game will be both more pleasurable and exciting.