Thrill of the Game: Lust for Three

Chad and Sandra have decided that anything will be better than the angry stalemate which the relationship has deteriorated into. What they have found, however, is Desiree: a young, blonde, and seemingly reassuringly innocent girl who offers to help 'spice up' their relationship. Now that they are about to go through with it, will Desiree turn out to be what she seems?