Maybe it's time for a bigger bikini: TOWIE's Billie Faiers's white two-piece struggle to contain her ample curves ~ star world news

By Emily Sheridan

She's openly spoken about her struggle to find clothes for her large cleavage in episodes of The Only Way Is Essex.
But it looks like reality star Billie Faiers's latest bikini isn't quite enough to contain her ample chest.
Relaxing by the pool in Las Vegas with sister Sam and their girlfriends, the 22-year-old repeatedly kept fiddling with her bikini top, perhaps nervous it wasn't going to stay on.

All white now: The Only Way Is Essex star Billie Faiers shows off her curves in a white bikini in the pool in Las Vegas

Yes, its still on: Billie adjusts her revealing bikini top

As she topped up her tan at the Encore Hotel, the Minnie's Boutique owner couldn't stop fiddling with bikini, which was feeling the strain containing her 30H décolletage.

While in the TOWIE gang's favourite holiday destination of Marbella, Spain, a wardrobe malfunction wouldn't be a huge deal, topless sunbathing is widely frowned upon in the U.S.
Although she dropped to a size 8 last year, Billie has returned to a curvier size 12 in recent months - demonstrated by her figure on holiday.

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Curvy girl: Billie has returned to her size 12 figure after slimming down to an 8 last year

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Curvy girl: Billie has returned to her size 12 figure after slimming down to an 8 last year

Bronzed: The boutique owner is said to be relaxing her diet and enjoying herself while TOWIE is on a break

A source told this week's Closer magazine: 'Billie isn't sticking to a strict diet at the moment and is just celebrating the time she has off from TOWIE with lots of partying and boozing.
'She'll begin working out gain when the show starts again next month.
'Billie jokes she has a "booze bloat" and says when she gains weight it goes straight on her stomach - her problem area - but she'd rather be happy than super-skinny.'

Colourful: Billie's little sister Sam was wearing a white bikini top and pink and lime bottoms

Interesting view: Sam tweeted a photo of her tanned body to boyfriend Joey Essex back in England

She has complained her large, natural breasts given her frequent backache, but has decided against getting them reduced.

She said recently: 'My back constantly aches and my shoulders tense up with the weight of them. It builds up during the day and by night-time, it’s really painful.'

How do I look? Billie kept on her expensive gold watch and checked her hair was neat during her poolside relaxing

Adjustments: A nervous Billie check out her cleavage again as she adjusts her bikini ties

Practising safe sun: Despite her love of tanning, Sam was wearing factor 15 sun oil

Having arrived in Nevada last Thursday, the Faiers sisters and their five girlfriends have been partying every night.

They've already been spotted at Chateau at the Paris Hotel, Wet Republic at the MGM Grand, Surrender nightclub at Encore, Tao nightclub at the Venetian Hotel and Spearmint Rhino.

Joining the sisters in Nevada's Sin City are their friends Ferne McCann, Charlotte Robertson, Kay Hawkins, Stacey Milburn and Gemma Brooks.