By Louise Saunders
Published: 08:16 EST, 15 April 2014 | Updated: 09:31 EST, 15 April 2014
She caused a worldwide Twitter meltdown when she posted a 'belfie' of her pert post-pregnancy posterior last year.
And after being pictured looking more bootylicious than ever as she took part in a rather racy photoshoot on the beach in Thailand last month, Kim Kardashian is said to be intent on plumping up her derriere even further.
The 33-year-old reality star - who raises daughter North, 10 months, with rapper fiance Kanye West - reportedly feels 'sexier' the bigger her behind gets.
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Pert posterior: After being pictured looking more bootylicious than ever as she took part in a rather racy photoshoot on the beach in Thailand last month, Kim Kardashian is said to be intent on plumping up her derriere even further
Spot the difference: The 33-year-old reality star's behind wasn't looking quite as shapely as it was in Thailand late last month back in 2006, when she was pictured on Sydney's Bondi Beach
And in spite of denying surgery in the past, the raven-haired beauty has allegedly splashed out £12,000 on bottom-boosting injections.
A source told Closer magazine: 'Kim's been focusing on her bum a lot lately - it's becoming almost obsessive. She says the bigger it is, the sexier she feels. But Kim's obsession is starting to worry her friends - they're concerned she'll take things too far.
'Kim says she wants an eye-popping booty that everyone notices. It's part of her brand.'
The Keeping Up With The Kardashians star raised eyebrows last week when new pictures were released of her on holiday in Thailand, showing her proudly revealing the truly jaw-dropping size of her bottom as she perched on the side of a red rowing boat.
The ultimate belfie! The Keeping Up With The Kardashians star caused a worldwide Twitter meltdown when she posted a 'belfie' of her pert post-pregnancy posterior last year
Evidently happy with the answer of 'does my bum look big in this', the Vogue cover girl seemed perfectly aware of her shapely derriere as she worked her magic in front of the camera - with a personal assistance even spotted spraying her behind with oil at one point.
While Kim's behind has undeniably grown larger, she has angrily denied using implants to achieve the fashionable looK, explaining her new look is all down to her pregnancy with daughter North.
Writing on her blog, she said: 'I'm seeing all these nonsense tabloids claiming I have butt implants-injections. Get a life!
Keep up with the latest Kim Kardashian videos
Bootylicious: Kim is said to be intent on plumping up her derriere even further, and reportedly feels 'sexier' the bigger her behind gets
Dressed to impress: The raven-haired beauty ensured her most-famous feature was on full display as she wandered through Charles de Gaulle airport in Paris on Monday
'I still have weight to lose. Anyone who has had a baby knows how hard it is to lose weight (especially the last bit of weight) & your body totally changes!' (sic)
The curvaceous star has previously undergone an X-ray during an episode of Keeping Up With The Kardashians to prove to the world that her bootylicious bottom is all hers.
While her derriere has certainly inflated somewhat in recent months, the rest of Kim has notably slimmed down - with the star dropping an impressive 50lbs on the Atkins diet plan.
Kim is currently gearing up for her romantic Parisian wedding to fiance Kanye, which is believed to be taking place next month.
Besotted: Kim's fiance Kanye West has made no secret of his admiration of his wife-to-be's shapely figure, in particular during his latest track, I Won
And the Yeezus rapper has made no secret of his admiration of his wife-to-be's shapely figure, in particular during his latest track, I Won.
In the charming song, he raps: 'I want to dip that ass in gold. Baby, we should hit the south of France, so you could run around without them pants.'
A source added to Closer: 'Kim wants to please Kanye and she knows he's obsessed with her rear. He thinks she has the best bum in the world.'
Kim and Kanye are believed to be tying the knot on May 24 in Paris, France, or the surrounding areas.
Changing shape: While Kim's behind has undeniably grown larger, she has angrily denied using implants to achieve the fashionable look, explaining her new look is all down to her pregnancy
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