Kendra Wilkinson, one of Hugh Heffner's three girlfriends, has stepped forward to reveal details behind the foursome's unique living arrangement.  Classify this under 'odd' in your journal of pop culture.

For the last FIVE years, Heffner, the 82 year old Playboy czar, has been living with Kendra Wilkinson, Holly Madison and Bridget Marquardt. 

In an interview at the X Games Celebrity Golf Tournament, she told FOX, “We are three very different people - we're doing very different things with our lives and we don't step on each other's toes: we're like the Spice Girls - I'm the sporty one. We are on different roads and they don't intersect.”

In other words, the secret to sharing an old man is easy, lots of time apart:

When she moved in, Wilkinson was just 18.