PIC: See Kate Middleton's Sexy Bikini Bod

Celebrity Body March 13, 2011 AT 1:37PM By UsWeekly Staff

Credit: SolarPix/ PacificCoast News

Kate Middleton is white hot!

In a series of never-before-seen photos taken while the princess-to-be vacationed with Prince William in Ibiza, Spain, in 2006, Middleton shows off her tanned and toned physique in a sexy white bikini.

PHOTOS: Spring break bikini bods

Since she began dating the future king eight years ago, Middleton has diligently been preparing for her royal close-up.

The 29-year-old -- who quit her job at her family's party supply business to prep full time for her wedding -- has transformed from "a university student into a woman," Simone Simmons, a close pal of the late Princess Diana, tells Us. "I call it that she lost her puppy fat!"

PHOTOS: Kate and Diana's royal style

How does Middleton maintain her hot bod? With regular workouts at London's Clarence House gym and beauty treatments at Richard Ward Hair and Metrospa in the British city's Sloane Square.

"Kate is always perfectly manicured, and she will have blow-dries before she goes out," says Katie Nicholl, royal watcher and author of William and Harry: Behind the Palace Walls.

PHOTOS: How Kate's style has evolved over the years

Still, commoner Middleton sometimes finds herself overwhelmed by all the fuss. "Now, she has a full entourage in tow," Nicholl tells Us. "The enormity of what she's in is finally sinking in."

For more on the Royal Wedding, including rare photos, interviews with family and friends, details on Kate's new life as a princess and a tour of their lavish homes, order a copy of Us Weekly's Will & Kate: The Royal Wedding now.

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November 29, 2011 - 5:24am Mitzi F. Udtuhan
really beautiful.. wish to be like her =)
March 15, 2011 - 5:41pm Xyayx Xyarx
@ Brewster Just dont read the articles about her, its that simple, no one is forcing you to click and read articles about her. Also the older generations in America did know who Kate was before the proposal, its the young girls and teenagers who dont know who kate and dont give a crap.
March 15, 2011 - 2:17pm Kelli Reed
I agree with Sarah Cook. The picture doesn't even look like her.
March 14, 2011 - 11:35pm Justina Bieber
She looks like a perfect match for Prince William. She has a healthy, athletic beauty. And she's a brunette! Yea! I hope they have many healthy,happy babies. Why not wear a bikini? She's young and beautiful!
March 14, 2011 - 4:40pm Tracey Timmerman
I'm with you @AmandaJane Collins, that is the future QUEEN of England, it's a bit unseemly. However, that was before she knew she was to be queen. She certainly dresses more modestly now
March 14, 2011 - 3:07pm Elda Reyes
no wonder the Prince is going to marry her!!
March 14, 2011 - 2:49pm Denver Broncos
See more bikinis here! bikiniwall.info
March 14, 2011 - 8:39am Manda Bragg
oops... meant to say beautiful.
March 14, 2011 - 8:38am Manda Bragg
@Amanada Jane Collins - what's so skimpy about her bikini? It's a rather modest bikini compared to most. Remember that she's still human and is still allowed to be herself. What is she supposed to wear while on vacation? A garbage bag? Get real! She is very beutiful.
March 14, 2011 - 7:38am Loni Elana Rockman
wow she's really pretty!
March 14, 2011 - 1:11am Amanda Jane Collins
ack! I'm Canadian, the queen is on our money LOL it seems weird to weird to see the future queen in a skimpy bikini
March 14, 2011 - 12:36am Annalee Jackson
That's her, I remember those photos. And I don't get why we are posting pics that are 5 years old anyway? Does her body look the same? How are we to know (not that we should care). This is the sort of over-hype that brought Diana to her knees. We only got the occasional snaps before the engagement, now all of a sudden it's a new story every damm day. It's not like we all didn't know she was going to be Princess before this (like for at least 3-4 years now). Why so much fuss now?
March 13, 2011 - 11:15pm Sarah Cook
Kate will crack under the pressure. Sorry but it's what happened to Diana. I mean, history doesn't always repeat itself but in some cases it does. This photo doesn't even look like Kate.
March 13, 2011 - 9:54pm Kira K. Rudnick
Agree with Callie - she looks AMAZING and inspires me to keep up with my workout regimen!!
March 13, 2011 - 9:29pm Randy Bellows
This is the bikini she wore when she went away with Prince William on vacation..it is her for sure. She's a beautiful girl, and knows just how to look.
March 13, 2011 - 9:22pm Anne McGill
These pictures have been on-line forever. I think she is beautiful and has no reason to be embarrassed. The pap who took the pictures should be embarrassed for being a peeping-tom.
March 13, 2011 - 9:03pm Jamie Douglass
That's not even her.
March 13, 2011 - 8:52pm Kasey Lasse
@ Laurie you have a lousy attitude, there is dignity still left in the world, and lots of women look like h0s in bikinis, they are just about naked. Being in her position calls for some class, evidently you don't have. Kate shows how to wear a bikini and look great and not trashy. They really like Kate. It's her, their are many pix out there.
March 13, 2011 - 7:42pm Shannon Burmatoff
That doesn't even look like her
March 13, 2011 - 6:56pm Brewster Antin
Who cares? that was 5 years ago.. and why is she always in the headlines on US websites and news sites? No one knew who she was in America until William asked her to marry him. Why do people care now? I wish they'd stop talking about her. It's annoying.