The best advert for her own collection! TOWIE's Lucy Mecklenburgh shines in a bedazzled bikini to launch swimwear range

PUBLISHED: 15:03, 11 July 2012 | UPDATED: 16:06, 11 July 2012

She's well known for having the best figure when it comes to The Only Way Is Essex, and Lucy Mecklenburgh certainly isn't shy about showing it off.

The stunning brunette proved the best advert for her own collection as she posed up in a sexy black two-piece to launch her range with Bella Bamba today.

Lucy, 20, looked incredible in the halterneck two-piece, which featured diamante detailing on the top straps and the bottoms.

The best advert: TOWIE star Lucy Mecklenburgh looked stunning in a bedazzled black bikini as she launched her Bella Bamba swimwear range in London today

'They represent real women': Lucy chose Kari Boanas (left) and Jess Banks from thousands of hopefuls who were all keen to pose with the reality star at the launch, held at London's Sanctum Soho Hotel

The TOWIE beauty left her brunette hair loose around her shoulders as she posed up for photographers at the launch, held at the Sanctum Soho Hotel this afternoon.

Lucy was joined by models Jess Banks and Kari Boanas for the launch, with the girls both expressing her excitement over the opportunity.

Kari tweeted: 'I've had the most amazing day modelling @BellaBambaUK with @lucy_meck & @jessbanks1 still in a bit of shock! Thanks so much to everyone xxxx '

Time for a dip: As well as posing up with the girls, Lucy also did some singular shots for photographers by posing on the side of a hot tub

Head to toes: Lucy appeared to be taking a page out of Tyra Banks' book and posed from right down to her pointed toes

And Jess added: 'Had an amazing day at the launch for @lucy_meck!'

The pair, who were handpicked by Lucy from thousands of hopefuls who vied for the chance to model with the TOWIE star, added: 'We had an amazing experience modeling Lucy’s range for Bella Bamba and feel so lucky to be chosen!'

After the girls posed up for photographs, Lucy made her way to the hotel's pool for another photo session - this time with the pretty star sitting somewhat precariously on top of the hot tub.

Careful! Lucy looked tentative about sitting in the hot tub first of all, lowering herself carefully in to the water

Giggles all round: Adjusting her top to prevent a possible wardrobe malfunction, Lucy was then happy to pose up for photographers with a wide smile

The swimwear range is the reality star's first foray into the designing world.

And talking about the range, which she co-designed, Lucy said: 'I’m so excited to be launching my brand new bikini collection. It’s an absolute dream come true.

'Bella Bamba is an exciting new brand to be part of and I can’t wait to wear each style on my holidays this year!

'I’m really glad to have given two of my fans who represent real women a chance to model with me for the day. They were both amazing.'

All white on the night: Lucy shines in the swimwear, which she models on the Bella Bamba website

Sexy and she knows it: Lucy works hard to maintain her enviable figure

The range of swimwear options features more traditional bikinis, as well as bedazzled versions of the more popular monokini.

Bella Bamba Directors, Eleise Lucraft and Becky Majeed, said of the new range: 'Lucy was the perfect choice to collaborate with. She knows her fashion, is a beautiful girl who embraces her curves and loves to look good.

'Together, we have created a luxury collection of swimwear which not only looks sexy and stands out with sunlight reflecting crystals, but the Brazilian cut to each piece ensures each style fits beautifully.'

Lucy's collection, which starts from £55, can be purchased at Bellabamba.co.uk.