They did WHAT! Khloe officiates over a very vulgar sibling rivalry... as Kim and Kourtney get competitive over their sex life

Even for the warts-and-all Kardashian sisters who are famous for their indiscreet reality show, it was definitely too much information.
In what is a new low sisters Kim and Kourtney decided to hold a very vulgar competition on Sunday night's reality show - to see whose private parts smell the sweetest!
While in London staying at world reknowned hotel The Dorchester, the trio used their spare time in the luxury confines to test sister Khloe's theory that drinking lots of pineapple juice 'makes everything sweeter'.

Tale of the tape: Kim Kardashian offers Kourtney a sniff of her intimate aroma in a bizarre contest with her sister on Sunday's episode of Kourtney & Kim Take Miami

It was certainly a new low for the brash sisters, in an episode that was filled with wall-to-wall vulgarity, as Khloe teased Kourtney about whether she had sex recently with husband Scott Disick - and if he had said she 'was sweet?'.

'Obviously I always am - better than Kim would be,' Kourtney insisted.

Sensing a challenge, Kim lewdly joked: 'A vagina smell-off!'

Too much information? Kim and Kourtney engaged the reluctant Khloe to be a judge in the contest

I declare the winner! Khloe said Kim's private parts smelled better than her older sister's

She later told cameras on their show Kourtney and Kim Take Miami: 'Kourtney seems very competitive about her vagina. I don't know why Kourtney is challenging me - but she will lose.'

Although it started as a joke, the pair took the competition seriously and, while in London to promote their Dorothy Perkins line of clothing, they endlessly drank pineapple juice.

'If I'm going to win this I need to get as much pineapple juice as I can,' Kourtney admitted, telling friends: 'It makes the vag smell good'.

Reluctant: The contest was the last thing Khloe expected when she jetted into London

The sweetest thing: Kim and Khloe made sure they drank a lot of pineapple juice to win the contest

When Khloe finally joined them in London, her older siblings shocked her by carrying out the plan, and in eye-popping scenes led the sisters in taking it in turns to wipe themselves on hand towels and forcing her to smell it.

'Do I want to be the judge of the pineapple p****? Not really,' Khloe said. 'But we're sisters - If  can't smell their p****** what else am I supposed to do?'

Kourtney was the first to present her towel, with Khloe sniffing and saying: 'Mmm, smells like a tropical island.'

As Kim walked out, Khloe told her 'I'm not smelling Kanye's ****', but Kim forced her towel on her.
'Oooh,' Khloe said, blushing. 'It smells like a flower p****.'

As the sisters waited for her decision, she finally said: 'Honestly, I will say that Kim's p**** smells the best - she's the kitty winner.'

Drinking on the job: Kourtney sipped on pineapple juice even when meeting Sir Phillip Green at their fashion launch

Doing the rounds: The sisters posed up with Green outside Topshop during the UK tour

But Kourtney was not convinced. 'If Kim needs to think she's won, then fine, I'll let her think that - but we all know whose vagina is the sweetest of them all,' she insisted.

Private parts were rather a the central theme of the latest episode, with Khloe also getting some Ben Wa Balls because she read that they 'tighten things up'.

'Ben Wa Balls baby - my p**** is going to be tighter than it's ever been before!' she said excitedly when she finally bought some.

'How will I know? What is the test for my vagina to say, "Oh yeah, those Ben Wa Balls really worked, man"? I just want to see if it's tight, and this is the test.'

After a pause she added: 'I've never had any complaints, by the way.'

Enjoying the British way of life: Khloe, Kim and Kourtney waved flags as they launched their Kardashian Kollection for Dorothy Perkins at Westfield

Meet and greet: Thousands of fans turned up for the launch in a bid to catch a glimpse of the world-famous siblings

But what goes up does not so easily go down - and she was forced to perform some weird gyrating exercises, with Kourtney also spanking her, to get the balls out.

The intimacy also continued when Khloe grabbed Kim's breasts and joked: 'These are like my mood ring - let me see what mood I'm going to be in.'

Kourtney was not so kind to her curvy sister, telling Kim: 'your ass is so large I don't know how you can even run' as they went jogging together in matching black skin-tight outfits.

Meanwhile, the episode also showed the moment that Khloe, riding in a car with her family, got the call that she had landed the job as co-host of the U.S. X Factor.

What mood am I in? The intimate scenes continued as Khloe had a grope of her sister's breasts

How do you even run? Kourtney told Kim she doesn't know how she works out because her bottom is so big

But it also showed her stressing out amid a series of disasters - including her nipples showing through her dress onstage, another dress ripping and her make-up crew not turning up for her first ever show.

'Maybe I did bite off more than I can chew,' she admitted, even asking mother Kris Jenner to call Simon Cowell and get her out of the show.

'I'm going to fake a heart attack to get out of it - you don't know how stressful it is,' she told her mother.

Meanwhile Scott Disick was his eccentric best as he threw a bizarre party in his Miami home while his family were away in London.

Nervous: Khloe was seen reading her script before heading onto host The X Factor USA for the first time

You can do it! Khloe was supported by her family during the debut of her hosting the show

After getting himself a throne and coat of armour, the self-styled Lord Disick dressed up as a medieval king,  and even flew in a personal butler who had to call him 'my Lord'.

'OK freak,' his wife told him during a video chat where she viewed his over the top ensemble complete with crown.

At the 'Lord Disick' party, he arrived in a 'chariot' - an open topped car - and made everyone treat him like a Lord, before he finally trashed everything.

'I'm pretty sure Miami will never be the same after this party,' he bragged.

What are you doing? Scott's embracing of his new-found Lord title left his partner bemused

Time to celebrate: Scott hosted a party to give 'Lord Disick' a royal introduction

But he soon realised his plans for 'guy time' without his family were not what he hoped - and finally flew to London to be with Kourtney and their son Mason because he was 'so lonely'.

'In my mind having some alone time, not having all these responsibilities, always sounds good - until they're not there. And then I'm anxious, bored and miss everybody,' he told his girlfriend.

Kim also talked about how she had just been on 'the most amazing trip ever' after returning from Italy where boyfriend Kanye West had taken her for birthday.

She joked about how a fan in tears approached her and said, 'Kim I have to tell you my sister is going through an awful divorce, and I'm like, "Aren't we all",' referring to her ongoing divorce nightmare from Kris Humphries.

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