Kim Kardashian’s incredible “Colorful Bikini” body on Miami beach

She's always been one to jump on the latest diet bandwagon, whether its working up a sweat at bootcamp or promoting a slimming shake.

But Kim Kardashian's latest get in shape plan is an invention all of her own - the 'sex diet'.

As the reality star showed off her beach ready curves in Miami it emerged that she had honed them with the help of boyfriend Kanye West.

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Beach ready: Kim accessorised her bright orange bikini with a matching mani-pedi (Read more and See more Pictures)

Kim Kardashian perfects “Bright orange Bikini” Butt & Ass in Miami

Kim's weight has fluctuated over the years, with the petite 31-year-old oscillating between a gym honed taught figure and her more natural curvy shape.

Recent pictures of her in form fitting outfits have sparked speculation that she has added weight to her curves.

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Limbering up: After her dip Kim showed off a few workout moves, doing some stretches on the beach

Taking some tips: Kim was joined by her publicist friend, The Spin Doctor star Jonathan Cheban (Read more and See more Pictures)

Kim Kardashian showed off her swimming “Bikini” skills in the pool

She is kept busy with professional commitments all over the world, and rarely gets to spend time with her family other than when they are shooting reality show Keeping Up With The Kardashians.

So Kim Kardashian relished the chance to spend some time with her siblings as they enjoyed family time over the weekend.

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'Air needs me!' In another shot, Kim was seen with her head above the surface as she larked around with her family (Read more and See more pictures)

Kim Kardashian perfects "Black Bikini" Butt & Ass in the swimming poo

However, despite making the most of the time with her sisters in the swimming pool, Kim couldn't resist getting her family to take some sexy underwater pictures of her.

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Water baby: Kim Kardashian showed off her swimming skills in the pool yesterday, but couldn't resist getting her sisters to snap underwater pictures of her (Read more and See more Pictures)

31 Pics of Kim Kardashian’s Best "Bikini" Moments on Her 31th Birthday

To celebrating, Kim Kardashian her 31 years old birthday. Let's we've take  a look back at her sexiest bikini pictures! It's been a big year, so far, for Kim and her family. Kim marrried Kris Humphries in August  and scored a solid place finish in dramatical sensational news. Until she joined with another man,  Kanye West in our suprisingly decision. How can it be ? (Read more and See more Pictures)

Kim Kardashian showed off her “Brown Bikini” body on her Twitter page

She's got one of the most envied bodies in the world, with millions of women dying to look just like her.
So Kim Kardashian's fans will be pleased to know that the 31-year-old reality star maintains a refreshing approach when it comes to staying in shape.

Kim revealed her diet secrets as she shared another picture of herself in a bikini on her Twitter page, showing off her toned curves in a sexy brown two-piece.
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Bikini body: Kim Kardashian showed off her curves in a brown two-piece as she posted this picture on her Twitter page (Read more and See more Pictures)

Youtube! Kim Kardashian posted her flesh “Coloured string Bikini” at sunrise

For the woman who 'has it all' -- beauty, fame, fortune, and a rap superstar boyfriend -- time is money.

So by the time mini-mogul Kim Kardashian headed to lunch at Marmalade Cafe today she had already done her Barry's Bootcamp workout, Pilates workout, and posted a sexy sunrise bikini picture.

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Magic hour: Kim Kardashian posted this unretouched Twitter picture of her wearing a flesh-coloured string bikini at sunrise this morning

Youtube! Kim Kardashian loses her virginity in aged nearly 15

Kris Humphries' lawyers to question Kim over claims in interview

One may have thought there was nothing left to learn about the Kardashians.

But reality TV star Kim, 31, did manage to hold back one choice piece of information for her in-depth interview with chat show host Oprah Winfrey.

In a stunning revelation, she disclosed that her mother Kris Jenner agreed to put her on birth control at the tender age of 14.

Kim told Oprah in the first of a two-part interview on Oprah's Next Chapter she was 'almost 15' when her mother, now 56, agreed to put her on birth control.

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Precocious: Kim told her mother Kris aged nearly 15 she planned to lose her virginity to her boyfriend of two years (Read more, See more Pictures, and watch Video)

Youtube! Kim Kardashian “Sexy Butt & Ass” in short tennis dress

KIM Kardashian looks ace as she flashes her rear in a short tennis dress. The reality show star knows how to take the advantage on court, grabbing the attention by bending over in the skimpy brown and pink dress.

But it doesn’t look like she’s keeping her eye on the ball, as she takes on the rest of the family in a match.

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Rear-ly naughty ... Kim Kardashain flashes her behind (Read more and watch video)

Kim Kardashian “Nude & Topless” photo tweet rumors

Kanye West and Kim Kardashian's photo tweet has been explained. On Wednesday, a nude photo of a woman that looked like Kim was tweeted, setting the internet ablaze. Rumors started that Kanye originally tweeted the picture which shows the nude backside of a woman eating at a table. That woman looks strikingly like Kimmy K. (Read more and See more Pictures)

Youtube! Kim Kardashian family “Bikini party” in Dominican Republic

Kim Kardashian is once again raising eyebrows after a home video was posted online. And while it is not of the same variety that made her famous, the family are receiving backlash for involving Kim's young sisters in an explicit, sexually-charged 'music video'.

The video, to expletive-ridden Hypnotize by Notorious B.I.G. features the family dancing and miming along to the lyrics and was filmed during their recent holiday in the Dominican Republic.

It features Kim shaking her famous derriere in the camera, the family crudely tossing money n the air, and teenagers Kendall and Kylie dancing suggestively in skimpy bikinis.

Risqué: Kim Kardashian and her family have filmed yet another 'music video', more explicit than any before, to Notorious B.I.G's Hypnotize (Read more and watch video)

Kim Kardashian “Bikini Butt & Ass” curvaceous in Mexican trip

Kim Kardashian no doubt has a room dedicated to being her wardrobe, bursting with designer gear.

But there really isn't much point, considering she spends most of her life in a bikini.

The reality star once again stripped off to flaunt her insanely curvaceous body during a Mexican trip.

Slipping into a teeny weeny baby blue bikini, Kim's contours threatened to spill in various directions.

 It's a hard life: Kim Kardashian shows off her body on the beach in Mexico in a baby blue bikini (See more Pictures)

Kim Kardashian "Bikini Butt & Ass" celebrates for two million follower on Instagram

But today Kim Kardashian was thanking the two million 'sexy beasts' who are following her on Instagram, another social networking site.

The 31-year-old reality star duly awarded her supporters by posting a sexy snap of herself wearing lingerie, thigh-high boots and a leather jacket.

Like what you see? Kim Kardashian posted a picture of herself wearing lingerie and leather on her Instagram account thanking the two million plus fans who are following her on the social networking site

Youtube! Kim Kardashian "Yellow Bikini" on a Mexican beach

The star also let her hair down for a stroll down the beach, and looked pensive as she shielded her eyes from the sun.

Kim was clearly enjoying spending time on a Mexican beach as she splashed around in the water. 

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Surf's up: Kim looked pensive as she strolled down the beach barefoot in her eye-catching two piece (Watch 3 video and see more Pictures)