82-year-old Playboy founder has three live-in-lovers - Kendra Wilkinson, 23, Holly Madison, 28, and Bridget Marquardt, 34 - and Kendra claims it is the girls' differences which help the quartet stay close.

She said: "If we all wanted the same thing it wouldn't have worked, because that's where all the drama would have started, but we're like the Spice Girls - I'm the sporty one.