Karissa Shannon

Love is in the air as Crystal celebrates her first anniversary with Hef. The last year has flown by faster than anyone could have imagined, and in this emotional episode, see never-before-seen footage that shows off some of the year's highlights for Hef, Crystal and the twins, including Hef's birthday blowout bash in Las Vegas, Crystal getting her new puppy Charlie, a wild and sexy slumber party at the Mapleton House and much more.

It's a "Girls Next Door" reunion as Bridget Marquardt and Holly Madison throw a baby shower for their friend and mom-to-be Kendra Wilkinson. Bridget and Holly recruit Crystal and the twins to help organize the shower at Mary O'Connor's house--but will Hef's old girlfriends get along with his new ones? It's sure to be an unforgettable event since it's the first time all six ladies have been in the same place since Kendra's wedding! Get in on the action as the girls play games, shower Kendra with gifts and reflect on how their lives have changed in the last year. Plus, Kendra gets an extra surprise when Hef drops by the shower for a special appearance!

Go behind-the-scenes as Hef, his girlfriends and their sexy Playmate pals shoot a "Guitar Hero" commercial--"Risky Business" style! See the girls try to master Tom Cruise's famous move as they slip and slide all over the Mansion and rock out for director Brett Ratner. Also, Crystal takes a road trip to see her mom in San Diego and discovers an old unfinished recording her father did when she was a baby. She decides to take the tape back home and record the song for her mother as a special surprise. But does Crystal have what it takes to follow in her father's musical footsteps? Plus, see what happens when she hits the recording studio with Motown legend Smokey Robinson!

Bridget's back! Hef's former girlfriend Bridget Marquardt returns to the Mansion to recruit Crystal and the twins to take part in a charity fashion show she will be hosting in Hollywood. Bridget even bonds with Karissa and Kristina when she sees what they've done with her old room as she helps the girls get ready for the event. Filled with Playmates from the past and present, see who else stops by to walk the celebrity catwalk! Meanwhile, Crystal and the twins are inspired to come up with their own idea to raise money for the LA AIDS Walk. Along with their Playmate pals, the girls set up a lemonade stand outside the Mansion, but will they be able to reach their lofty goal of $12,000?

Hef has been invited to be the guest of honor at the San Remo Music Festival in Italy and decides to bring all three of his girls along for some fun! It's the first big trip they've all taken together and Crystal wants to make sure she gets some extra special time in with Hef. The first stop in their Italian adventures is in the tiny town of Roccaraso, where the twins meet some of their distant relatives for the first time! Hef and the girls are treated to an amazing home cooked nine-course feast that goes on and on, and the twins get a history lesson on their Italian roots. Back in Rome, the girls are surprised to find that Hef has invited Dasha, the 55th Anniversary Playmate, to join them at the festival. Crystal and the twins have mixed feelings about sharing the spotlight (and their boyfriend!) with Dasha who seems to always seek attention and not know where her boundaries lie.

Lights, camera, action! The Shannon twins get their first taste of stardom when they are cast in a new Sofia Coppola movie as sexy twin vixens who know how to work a stripper pole! The girls decide to take pole dancing classes to research for their roles, but when they realize that it's a lot harder than it looks, will they be able to get their moves down before they have to perform for director Sofia Coppola? Meanwhile, Crystal decides to test for Playmate and bares all for a super-sexy 1930s-themed photo shoot. But will Hef be impressed enough to make her a centerfold? Watch and see!

Crystal, Karissa and Kristina decide to have some fun and dress up in disguise during a Hollywood bus tour. She girls eavesdrop on what tourists have to say about the Playboy Mansion (and Hugh Hefner's new girlfriends, of course), and even cause a scene when they try to crash the Mansion's front gate! Also, the girls decide to go camping in the Mansion's backyard and bring the girls at the Mapleton house along for the adventure! See what happens when these babes try to "rough it" and attempt to build a campfire and pitch a tent by themselves. Plus, things take a scary turn when Hef tells them that the Mansion is supposedly haunted and the gals bring out a Ouji board to contact spirits.

After viewing some of Hef's old videos, Crystal and the twins are eager to throw a retro-cool '70s-themed roller disco party at the Mansion. Since the girls are too young to know about that era, they enlist the help of Hef's former girlfriend Barbi Benton to help them plan the party. Of course, Barbi goes all out and even brings over some of her old '70s fashions for the girls to try on! It turns into a chance for Barbi to bond with Hef's three new ladies, and Barbi and her daughter even get in on the act when they all take private skating lessons from an eccentric instructor to help enhance their roller skills. But will the girls' party live up to the infamous parties of the past?

Hef, Crystal and some of her pals head to Sin City to join the Shannon twins as they promote their dual "Playboy" covers. The group also plans a special in-suite dinner for Hef's former girlfriend Holly Madison and even brings a bit of the Playboy Mansion to Las Vegas for her! Crystal is nervous about meeting Holly for the first time, especially since she knows how much she meant to Hef. Will Hef's two loves be able to get along? Next, Hef and his entourage go see Holly perform in her new burlesque-style show "Peep Show"--and Hef even gets in on the act joining his ex on stage! Also, see what happens when Holly invites the gang backstage after the show, and the Shannon twins take the stage at the Playboy Comedy Club.

The Playboy Mansion is alive with energy--and a whole lot of fresh faces! First, meet Hef's new trio of beauties: his new No. 1 girlfriend, 23-year-old Crystal Harris, and 19-year-old twins Karissa and Kristina Shannon. Learn about the new girls including their routines at the Mansion and how they ended up as Hugh Hefner's girlfriends! Plus, they also set the record straight about misconceptions the public may have about them, and open up about their childhoods. Also, follow the Shannon twins to Las Vegas for a "Playboy" magazine signing and see what happens when they meet up with Hef's former flame Holly Madison.

Now that she's ready to move out of the Mansion, it's time for Kendra to go house hunting! Will she be able to find a mini-Mansion of her own where she can entertain her family and friends? Also, reality sets in for Kendra when she starts packing up the last five years of her life and she has to say goodbye to the Mansion staff and Hef. Meanwhile, Holly leaves for a Playboy shoot in Las Vegas for the weekend, and Hef senses that she hasn't been happy in their relationship for the last few months. He knows she still longs to get married and have kids--something that he isn't able to give her. Although his Girls are moving on, Hef isn't alone for long. He already has some potential gal pals lining up to keep him company including the young and vibrant Shannon twins Kristina and Karissa.

Bridget is offered the opportunity of a lifetime to host a new Travel Channel show that takes her to the world's best beaches--and this girl knows she needs to step up her game if she wants to succeed! She decides to get certified in scuba diving and takes Holly and Bridget along for the ride. But before they can take the plunge, they need to hit the books and take a classroom course that'll teach them the basics of diving, and then it's off to the Mansion pool to test out their new scuba equipment. Finally, the girls go on a quick little getaway to Catalina Island to tackle their first open water dive. But when Kendra and Holly start having second thoughts about heading out, can Bridget convince them to go for it? Meanwhile, Hef takes a boatload of his beauties to visit the girls at sea and show their support.