It's Hugh Hefner's 82nd birthday and he takes the ladies to Las Vegas to celebrate.

Hef and all the Girls attend one of Playboy's most action-packed, celebrity-studded parties of the year: the over-the-top Super Bowl extravaganza!

Bridget becomes a producer for a low-budget Halloween flick.

Before the arrival of the new girls, Bridget and Holly revamp the Mapleton house, and then throw a house warming party.

Hef's search for the 55th anniversary Playmate of the Year is part of his plan when he hosts a party.

The search continues for the 55th Anniversary Playmate, with Holly and friends making their way to The Big Apple.

Hef and the Girls attend the Kentucky Derby at Churchill Downs, with the Girls decked out in their most fabulous dresses and hats and turning heads.

The 55th Anniversary finalists are surprised by a special announcement from Hef

Hugh Hefner picks the winner of the 55th anniversary Playmate for Playboy magazine.

Kendra and Holly head to the batting cages after she arranges a Playmate softball game.

Hef recalls his long, lucky life as he scans through old scrapbooks, while the girls work on the 2009 Girl Next Door calendar.

Hef and the ladies head to Aspen, Colorado, to meet former Playmate/girlfriend Barbie Benton at her home where they all join in for a sleigh ride.

Bridget's little sister, Anastasia, is finally turning 21, and the Girls want to help her celebrate in style.

Bridget's friend Stacy Burke gets married in Las Vegas.

Bridget's horror movie is shooting - and she's learning quite a bit about this sometimes "scary" business. What's the status of this particular film? And Kendra’s car is stolen, so she goes out hunting for a new set of wheels!

The girls treat their moms to a spa day at the mansion

The girls get certified in diving though a class in the dining room, their first lesson in the mansion pool and a sea dive off the coast of Catalina

The girls get certified in diving though a class in the dining room, their first lesson in the mansion pool and a sea dive off the coast of Catalina

Kendra decides to move out of the Playboy Mansion and goes house shopping. Bridget takes a leave of absence from The Girls Next Door to film her new show covering different beaches around the world.

Kendra decides to move out of the Playboy Mansion and goes house shopping. Bridget takes a leave of absence from The Girls Next Door to film her new show covering different beaches around the world.