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Kim Kardashian is probably more famous for her rear end than for her reality show, especially since former best bud Paris Hilton recently made some not-so-nice comments about her cellulite on a Vegas radio program.

But rather than hiding her comely curves and figure flaws, Kardashian allowed cameras to get up close as she underwent a non-invasive cellulite treatment for an episode of "Keeping Up With the Kardashians."

"Every girl has cellulite, so why not?" she said. "I wish I'd done it more than once to see the effects."

While so many starlets are uncomfortable being branded as sex symbols, Kardashian totally embraces her public persona and has no plans to alter her image.

"I'm so flattered that I'm considered sexy; I love it," she told Pop Tarts. "I also love that people consider me a role model. I am a normal girl; we all make mistakes but learn so much along the journey of life that it all makes us stronger — that's what I live by."

Well, we're not sure how normal Kimmy K. is, given that she is paid tens of thousands just to turn up at a party. Speaking of which, she has something she wants to set straight.

"The biggest misconception people have about me is that I'm a wild party girl. Yes, I love to party, but it's more about dressing up and hanging out with my friends than it is about staying up all night," she said, adding that people also are surprised by her domesticated passion for baking cupcakes.

Meanwhile, the 27-year-old is auctioning off almost her entire wardrobe (well, 250 hand-me-downs with about another 100 on the way). And for a gal who initially shot to fame because she was a pal of Paris, daughter of an O.J. Simpson lawyer and the star of an unfortunate homemade video with rapper Ray J, it's quite impressive that Kardashian's bidding value already has surpassed $60,000. Auction experts predict she will hit over $100,000 by the week's end.

Click here to bid.

In a bonus auction, the chance to win a lunch date with Kim and her two stylish sisters closed on Sunday with a happily married 41-year-old mother of two/auto-detailing business owner from Florida forking out $8,800 for the prize.

"I think the sisters are all beautiful, intelligent and articulate. I didn’t have much of a family life early on and I enjoy seeing their whole family interact," winner Aya Sewell told Pop Tarts. "I am looking forward to an interesting experience; I always enjoy meeting other smart and attractive businesswomen."

Business certainly does seem to be at the forefront of Kimmy’s mind, and this girl is more than just a pretty face. Thirty percent of the proceeds from the lunch auction and 10 percent of the proceeds raised from auctioning the personal items are going to charity, but it still looks like the small-screen siren will make a mini-fortune to add to her already bountiful bank balance.

Jessica Simpson Sweeps Nashville

Jessica Simpson has spent a whirlwind week in Nashville promoting her first country album and pitching the single "Come On Over," which she co-wrote. But it’s not only the hundreds of fans vying for a glimpse of the transitioning pop princess that has the Tennessee city talking; apparently, she has impressed quite a few of country music’s big wigs.

"I think a lot of people had preconceived ideas about Jessica going country that weren't exactly positive," a prominent Nashville music manager told Pop Tarts. "But so far, she's causing quite a buzz and Carrie Underwood comparisons are already coming up."

A smiling Simpson managed a break in her schedule to enjoy brunch at the trendy new club/restaurant Mad Donna’s in East Nashville on Saturday, accompanied by her entire entourage, which included her personal assistant, bodyguard, father Joe Simpson and their driver.

An eyewitness told Pop Tarts that the songstress was particularly quiet, although she appeared very relaxed and happy — so could it have anything to do with rumors she is ready to give up Hollywood for good?

Jessica reportedly has expressed interest in purchasing a home in Nashville, although this was denied by her rep. But Pop Tarts has confirmed that Simpson is putting together a band out of the country music capital to support her on her upcoming album tour.

Mischa Barton's Boozy Ban

Mischa Barton appears to be one of the few troubled Tinseltowners who learned from getting a DUI. Barton was charged earlier this year with driving under the influence and without a valid license after being arrested in Beverly Hills in December.

But while so many convicted celebs continue their bad behavior, Barton has not been spotted sipping a single adult beverage since her arrest.

The former "O.C." starlet was out and about in Hollywood last Wednesday night, sneaking into Billabong USA’s 2nd Annual Design for Humanity Fashion Show. Mischa reportedly partied hard (with her publicist) on the balcony while sticking to sipping water while everyone was getting hammered around her. Discipline!

John Legend also attended the event to support his model-girlfriend, Christine Teigen, who was walking the runway. However, Legend apparently dedicated more time to signing autographs for fans than to watching his woman do her thang.

But here’s something humbling — even celebrities without IDs can’t always talk their way into a club.

We’re told "Malcolm in the Middle" star Chris Masterson was left stranded outside for over 15 minutes when he couldn’t find his driver's license. When negotiations with the bouncer didn’t work, Masterson apparently pulled out his entire wallet and eventually found the card buried beneath a thick stack of credit cards.

Hayden Panettiere Talks Girl-on-Girl Good Times

Hayden Panettiere refused to kiss and tell details of her relationship with fellow "Heroes" star Milo Ventimiglia while being interviewed by British Glamour magazine — but instead was pretty open about her history with lesbian lip-locking.

"It’s great to have boyfriends. Or girlfriends," she said. "There are occasions when you kiss your best friend growing up, having fun and goofing about. Like perfecting your technique."

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