Before she even went into the jungle, Stacey Solomon said she didn't want to lose any weight while taking part in I'm A Celebrity... Get Me Out Of Here!

But the choice was taken entirely out of the 20-year-old's hands as soon as she stepped on to Australian soil, as the contestants' food supply is determined by the success of the Bushtucker Trials.

And, with multi-phobic nutritionist Gillian McKeith at the helm on the majority of the trials, it's no wonder the campers have been going hungry and have been forced to survive on little more than rice and beans.

A gaunt-looking Stacey displayed her incredible shrinking frame as she took a shower under one of the jungle's waterfalls yesterday.

She's shrinking: Stacey Solomon displayed a much thinner frame as she had a shower in the jungle yesterday

Gaunt: Stacey looked noticeably slimmer than she did ahead of entering the jungle (right)

Compared to photographs of the X Factor star before she went into the jungle, she appears to have lost at least half a stone, with her ribs now jutting out and her face looking noticeably thinner than before.

Ahead of the show's start earlier this month, Stacey said she was keen to maintain her size 10-12 figure.

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She said: 'It wouldn’t be nice if I did come out a size 6-8. I’m such a pig, the thought of not having much food is the thing I have been dreading most!'

Suffering: Playboy Playmate Kayla Collins also looked noticeably thinner (left) thanks to the diet of rice and beans the contestants have been on

Even Playboy Playmate Kayla Collins looks noticeably thinner than when the show began, with her black monokini virtually hanging off her as she stood under the waterfall.

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Spots and stripes: Kayla is an all American girl. Pic: © ITV/Rex Features

Thanksgiving is a big national holiday in America that is traditionally spent with family. However, Kayla Collins, who is originally from Pennsylvania, was stuck out in the jungle this year and it made her a little depressed.

There would be no turkey and trimmings for the 23-year-old model as she would have to tough it out in the Australian bush.

But MAXIM gave us something to remind us of her!

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As a former Playboy Playmate, Kayla Collins is used to doing sexy poses for the cameras.

So as she showered in the Australian bush yesterday, the curvy blonde, 23, put on a good show as she enjoyed a bikini-clad shower.

But despite her sensual wash, the scenes didn't end up on last night's episode because she was wearing a two-piece from her own range.

Curvy: Former Playboy Playmate Kayla Collins enjoyed a shower under a waterfall in a bikini from her Sweet range

The glamour model brought bikinis and swimsuits from her new Sweet swimwear range in the hope of plugging them.

However due to product placement laws, producers have had to dramatically reduce her on-screen bikini time - meaning male fans missed out on her solo shower sessions yesterday.

Although she did make a brief appearance in black bikini on Monday's episode, prompting departing campmate Nigel Havers to joke he had changed his mind about leaving.

As he prepared to leave the camp, he caught sight of her in the bikini, prompting her to ask him: 'Do you like it?'

It's cold: Kayla looks a bit shocked by the cold waterfall as she washes her hair

Pretty in pink: Kayla has been showing of her 34-24-34 figure in the pink and black polka dot bikini

Nodding with approval, he joked: 'I've just changed my mind.'

Before she entered the show, Kayla admitted she had packed three bikinis for the jungle:

She said: 'I will be wearing some very sexy bikinis in the jungle. One is a leopard print bikini, one is a black bikini and another is a light pink bikini with black polka dots.

'They're very cute and very sexy. I'm thinking they are sure to get me some male admirers - and some female admirers, too.'

Adjustment: Kayla fiddles with bikini top as she heads of to wash

She even promised fans a sneak peek of her new collection on the show on her Twitter page: 'A preview to Kayla’s new swimwear collection will be aired on I’m A Celebrity... UK.’

However, an ITV source told The Sun: 'All the girls were told they were only allowed to bring in three bikinis each – and Kayla insisted on bringing her own range in.

‘It means we haven’t been able to use as many shots of her in them as we’d like.’

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