They're Old Enough To Know Better. . . And Too Young To Care.Sarah Michelle Gellar and Ryan Phillippe sizzle as a pair of unscrupulous siblings in a deliciously sexy tale of seduction, revenge and conquest.After cleverly seducing and ruining the reputation of an unsuspecting classmate (Selma Blair) the sparks fly when Kathryn (Gellar) poses the ultimate challenge to her insatiable stepbrother Sebastian (Phillippe): deflower the Headmaster's beautiful, virgin daughter Annette (Reese Witherspoon). If he fails, Kathryn gets his most prized possession, but if he succeeds, Sebastian get to possess and bed Kathryn.The stakes are high, but for Sebastian, the payoff is feverishly irresistible and before the summer's over, no one will escape their relentless game of cat and mouse. . ..until one of them is bitten by the most unlikely sensation of all. . . love.