Inside the Playboy Halloween Party: Hugh Hefner Back to His Wild Womanizing Ways

Think naked women, body-paint, big boobs, blondes and free booze and you'll get a feel for Hugh Hefner's Annual Halloween party, which went down at his iconic mansion on Saturday night.

Despite rumors that the parties are over, a rep from Playboy told us that it is absolutely not true and Hef intends to continue his hoorahs.

Hef’s former flames Holly Madison, Bridget Marquardt and Kendra Wilkinson made low-key appearances early in the evening but escaped upstairs when the party started heating up. The girls were all smiles as they strutted around (separately), clearly enjoying the fruits of their bunny-free lives.

But now that the "Playboy" founder has his long-term ladies out of his life, the 83-year-old seems to be back to his old and wild womanizing ways. Like a kid in a candy store, Hef remained happily seated in a special cage in the middle of the dance-floor (donning the same red robe and devil horns he wore last year) with dozens of well-endowed women dancing dirty around him.

His new girlfriends, infamous twins Karina and Kristina Shannon, took their proud place beside their magazine mogul and didn't seem too bothered that he proceeded to well, let's just say do some inappropriate things to other gals. Around midnight Hef headed up to his master bedroom with some specially selected VIP bunnies (or wannabes) and while this guy might be old, he still certainly has the "it" factor. The line to join Hef behind closed doors extended out past his front door as dozens of youngsters tried to sweet-talk their way past the security at the foot of the staircase.

Other celebs spotted celebrating at the scantily-clad Halloween hoorah included John Stamos (donning a tuxedo), Verne "Mini-Me" Troyer (himself), Mario Lopez (dressed as a Native American Indian), Chris Evans (a janitor), Neil Patrick-Harris (an English magistrate), Nicky Hilton (sweet Snow White), Kelly Osborne and Pauly Shore (as his annoying self) who hit on everyone and everything with legs and a chest.

The most popular costume theme for the party was political in flavor with plenty of super sexy Sarah Palins and exaggeratedly old John McCains (interestingly, there was no Obama's -- is his style not interesting enough?) A few other creative hot favorites included a Lohan/Ronson couple, men as kissing booths and free mammogram clinics and fellow Foxnews.com reporter Courtney Friel who dressed up as a Fox and flew the flag for us by wearing our logo around her neck.

Click here to view Courtney's report.

Sin City Craziness: AnnaLynne McCord Gets Dirty, Kardashian Gets Diamonds & Rose McGowan Knocks Down Doors

Las Vegas was certainly the place to be over the weekend as stacks of stars spread their wings across the Strip. But the one (literally) who did the most "Sinning" of all was 90210 starlet AnnaLynne McCord.

The 21-year-old was in town to celebrate the "Sirens of TI" 5-year anniversary where she assumed the fierce role of "Sin," the production’s fearsome lead seductress. Scantily clad in a beaded silver costume, AnnaLynne performed in a never-before-seen production of the regular show where she sailed into the bay outside of Treasure Island Hotel & Casino as the figurehead on the show’s iconic pirate ship.

McCord then took "center ship" as she showed off her provocative moves and shimmied along with the Sirens in the final dance number, taking attention away from the silk acts, high divers and an electrifying pyrotechnics display before partying until the wee hours inside at the Christian Audigier Nightclub.

Meanwhile, Rose McGowan spent the majority of her Sin City stay doing door knocks to remind residents to get out there and vote in next week’s election (we’re sure she would have caused quite a few jaws to drop in the process). But while this gal knows how to work she also knows how to play. McGowan and her entourage hit up the ultra-luxe The Bank in the Bellagio on Saturday evening and in between dancing and drinking, the former flame of Marilyn Manson took to the mic to stress the importance of making your vote count.

Down the street at Planet Hollywood's Prive, Charlie Sheen was seen helping his actor pal Michael Boatman celebrate his Birthday with a bunch of cigars. We're told the boys were all on their best behavior as Sheen stuck strictly to orange juice while his friends indulged in bottled water. The "Two-and-a-Half Men" star also made an escape just after midnight so he could catch a flight back to L.A as he was missing new wife Brooke Mueller who is expecting twins.

Speaking of birthdays, Kim Kardashian celebrated her 28th on Friday at the Luxor's LAX alongside her NFL beau Reggie Bush and her big reality television family. But the DWTS alumnus was in quite a surprise when a rep from ItsHot.com randomly decided to gift the gal with a 35-carat gold diamond necklace. Hmmm, isn't about time Reggie was giving the diamond?

Over at the Hard Rock Hotel & Casino, Elton John's husband, David Furnish celebrated his birthday by Pool at the Palapa hut. Celebrity guests included Elton John, Gina Gershon, "Will & Grace" star Erick McCormack and former talk-show host, Ricki Lake .

Mary-Kate Olsen Snubbed by Julian McMahon

Mary-Kate Olsen is a household name, but maybe not in Julian McMahon’s residence apparently.

Both the 22-year-old twin and the "Nip/Tuck" actor attended the 25th Running of the Breeder’s Cup in California over the weekend, although McMahon apparently gave M.K the snub. We’re told that McMahon was asked had he seen Olsen sneaking into the event (she refused to do press) and he responded "Mary-Kate who?"

The two later crossed paths but Julian didn’t even look twice, and clearly Olsen had better things to do. We’re told the actress remained holed up in a private box with her father and movie magnate Mel Brooks where the three of them spent hours looking through the books and placing bets in their private window. While it didn’t look as though the Olsen group had too much luck, Dennis Hopper was seen celebrating a $16,000 win during the last race.

Spotted or Snapped a Star? Got a Good Scoop? E-mail poptartstips@gmail.com.