Sometimes when the sun shines, it scorches. Third time's the charm as Mara, Eliza, and Jacqui head back to the Hamptons. This summer the au pairs are doing it right: in style, in step, and "in" everywhere. Mara has the VIP hookup at all the new clubs -- not to mention sweet digs living with bf Ryan on his parents' yacht. Eliza's nights are steaming too, since she and Jeremy are in total relationship bliss. Too bad she's spending her days at a fashion...