The summer sun beat down on the city of Malibu as a bright red sports car pulled into the driveway of a large, beachfront home. It's three occupants came piling out, each carrying multiple shopping bags. "Just leave your bags wherever, girls," the oldest, Taylor, said as she collapsed onto the expensive sofa. At thirty-three, Taylor still had a tall, statuesque figure thanks to her workout routine and diet and, like her s...