Is Princess Eugenie getting a little inspiration from her super skinny cousin-in-law Kate Middleton?

Prince William's beloved cousin, who gained notoriety after she and her sister Princess Beatrice committed a fashion faux pas at the Royal wedding, hit the town in London on Thursday night to celebrate her 22nd birthday, showing off her newly slimmed down figure in a curve-hugging dress.

There was no struggle for these bikini babes on their rise to fame!

From the hottest heiresses and reality stars to biggest big screen bombshells, these sunbathing beauties didn’t have to wait for their own personal fortune to get a taste of the high life, as they were born into privileged families.

RadarOnline.com has photos of the 20 hottest bikini babes with privileged pasts.

PHOTOS: Privileged Celebrity Bikini Babes

Paris Hilton and Nicole Richie definitely didn’t live The Simple Life as kids. While Paris is one of the heiresses to the popular Hilton hotel chain fortune, Nicole was adopted by chart-topper Lionel Richie as a young girl, and both were brought up in the swankiest of international circles.

Not every Hollywood star scored a slot on the Best Dressed list in 2011!

Celebrities may have all the money in the world, but that doesn’t always equate to stellar style sense.  From the red carpet to the streets, there were several style sinners this year and RadarOnline.com has picked out the 10 biggest mistakes a la mode as part of our ON YOUR RADAR year-end special.

PHOTOS: The 10 Worst Dressed Stars Of 2011

Even with the help of expensive stylists and unlimited beach season budgets, some celebs still can't find a bathing suit that fits!

From too small tops that don't cover up their awesome assets to ones that just don't fit right, RadarOnline.com has photos of your favorite celebrities encountering the ten biggest bikini boob blunders on the beach.

PHOTOS: Sexy Stars Who Have Experienced Boob Blunders In Their Bikinis

Tara Reid underwent expensive plastic surgery to get her bikini boobs larger than life, so you would think she would invest just a few more dollars in a bikini that showed them off to perfection, instead of hanging out of an unsupportive top.

Pippa Middleton is to be forgiven her recent fashion faux pas at a friend's wedding. Friday night, the royal sister sizzled on the scene of a charity event in a daringly low-cut gown.

Pippa dazzled in the red full length dress, designed to take the eye right to her cleavage!

PHOTOS: Pippa Middleton Is A Red Hot Lady In Red

The lucky man escorting Kate Middleton's sis was her boyfriend Alex Loudon. The pair attended a boxing event that benefited the Starlight Children's Foundation, an organization that grants wishes to kids suffering from life threatening illnesses.

Former Spice Girl Geri Halliwell chatted up Pippa during the evening. Also there were the ever-present princesses Eugenie and Beatrice, cousins to Pippa's brother-in-law, Prince William.

PHOTOS: Did Pippa Middleton Suffer A Wardrobe Malfunction?

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Robin Thicke and Earth, Wind and Fire are nothing to sneeze at but when billionaire heiress Petra Ecclestone married on Saturday, she had opera superstar Andrea Bocelli serenading the guests before the sunset ceremony, rock icon Eric Clapton playing the newlywed's first dance and none other than The Black Eyed Peas as the dance band!

Now that's a wedding!

Petra's walk-down-the-aisle with James Stunt is estimated to have cost $6.5 million, and there wasn't a cable network paying the tab. Of course that's small potatoes for the 22-year-old who recently paid $85 million for Candy Spelling's Los Angeles estate.

PHOTOS: Petra Ecclestone Weds

There were no signs of wedding day nerves for the daughter of Formula 1 boss Bernie Ecclestone as she arrived at her over-the-top nuptials in the back of a Rolls Royce looking calm and collected.

No expense was spared for the magical event at a castle in the Italian town of Bracciano -- the same one where Tom Cruise and Katie Holmes wed in 2006 --  with guests sipping on $6,000 a bottle wine and Louis Roederer Cristal Champagne while watching acrobats and fireworks.

The bride's custom-made Vera Wang dress reportedly cost in the region of $120,000.

PHOTOS: Meet The Ecclestones - Petra And Her Family

Paris, Nicky and Kathy Hilton, David Arquette, and the Duchess of York Sarah Ferguson and her daughters, Princess Beatrice and Eugenie were among the 250 VIP guests.

Her sister, Tamara, was Petra's maid of honor.

Petra and her new husband will be spending much of their time in Los Angeles, after her massive renovations on the Spelling mansion are complete.

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The odd Philip Treacy-designed hat Princess Beatrice wore at last month's royal wedding sold for about $130,000 (GBP 81,000) in an eBay auction this weekend.

The proceeds for the famous headpiece will be forwarded to UNICEF UK and Children in Crisis. An anonymous buyer edged four other bidders for the privilege of calling the royal memento his own.

"It has its own personality, and I am so happy that we have raised the most incredible amount of money and can make an even bigger change for the lives of some of the most vulnerable children across the world," the 22-year-old daughter of Prince Andrew and Duchess Sarah Ferguson said in a statement on Sunday.

How much is the most ridiculous hat in the world worth?  Apparently more than $100,000!

The bids for the wacky hat that Princess Beatrice, daughter of Prince Andrew and Sarah Ferguson, wore to William and Kate’s royal wedding hit $102,007.46 on Friday, with just two days left in the auction.

PHOTOS: Hats Off To The Royal Wedding!

There have been 94 bids placed for the Philip Treacy hat that was the talk of the day when the Princess wore it to the wedding.