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.

Hef takes the girls on an overseas trip to England and France.

Hef and the girls continue their European tour by visiting Italy and Germany.

Crystal, Karissa and Kristina get into trouble on a Hollywood tour bus and fear they may be arrested.

Hef and Crystal celebrate their first anniversary of being together.

Back in the U.S., the girls arrange a baby shower for one of the Playboy Playmates.

The twins and Crystal camp in the backyard at the mansion with some friends, but end up in Hef's room to watch a movie.

Before the special Playmate of the Year luncheon, Holly decides to have a slumber party.

A film shoot for a video game takes place at the mansion. Also: Crystal takes singing lessons.

Hef attends a music festival in Italy and takes the twins and Crystal along to share the fun.

Karissa and Kristina prepare for roles as sexy twins in Sofia Coppola's movie "Somewhere." Meanwhile, Crystal learns she will be a Playmate and poses for her photo shoot.

Holly, Bridget, Crystal and the twins throw a baby shower for Kendra.

Hef celebrates his 80th birthday with a big celebration with his closest friends and playmates.

Bridget Marquardt hosts a fashion show to benefit an animal charity and gets Crystal and the twins to help out.

The girls and some close friends travel to Las Vegas to celebrate Kendra's 21st birthday. In true VIP fashion, they stay in luxury suite in the Palms, and Kendra finally gets an opportunity to show off her blinged-out grill.

The girls appear on the Loveline radio show with Dr. Drew, and Holly and Hef celebrate their 5 year anniversary.

Two aspiring Playmates arrive at the Mansion to stay the night before they shoot test pictorials. Hef's girls greet them with varying degrees of hospitality. After an afternoon of ice skating and a trip to the batting cages, the entire group heads out for a sushi dinner. Since Hef doesn't like sushi, he has his own staff prepare the ingredients for lamb chops--to be cooked by the restaurant chef! Something's fishy, though, when Hef's dinner takes a bit too long. But a night of clubbing with his gals takes the edge off. There's even more good news when Hef announces to Holly, Bridget and Kendra that they'll get a pictorial in the magazine. The girls, and especially Bridget, are ecstatic. After all, this is her longtime dream come true.

Hef and Crystal go to Las Vegas to join the twins. Later, they go to see Holly in a live show.

The girls interview new candidates for bunny girls to work at the new Playboy Club in Las Vegas.

The sixth season begins with Hef's new girlfriends Crystal Harris and twins Karissa and Kristina Shannon. The sisters travel to Las Vegas to celebrate their double Playmate issue.

"Body by Jake" taps the girls to do a workout video and the girls' planning, preparation and performances definitely get their heart rates elevated.

There's something spooky in Bridget's room--and it ain't Gizmo. It's Halloween at the Playboy Mansion! While Holly and Kendra put their wits together to decorate tombstones, Bridget sets out on a full-scale ghost hunt. She contacts a paranormal investigator to get to the bottom of the Mansion's long-running history of spirits--and even puts together a séance. After the Mansion's mysteries have been explored, Hef and the girls relax with a movie in his bedroom. They watch The Fly and a horror classic created by and starring Hugh M. Hefner himself at the tender age of 16. As the lights go out, it becomes apparent that the force pervading the Playboy Mansion is Hef's youthful spirit!

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