TOWIE take over Marbella: Sam and Amy are positively demure compared to their cheeky co-stars

One's a glamour model and the other one aspired to be one.

So you would think that Sam Faiers and Amy Childs would be wearing the skimpiest bikinis during the TOWIE gang's week-long Marbella sojourn.

But the buxom girls surprised their fans by covering up today - while their lesser-known co-stars paraded their bikinis bodies on the beach.

Here come the girls: Jessica Wright, Lydia Bright and Lucy Mecklenburgh of The Only Way Is Essex take a stroll on the beach in their beachwear in Marbella

Walk this way: The reality stars have been parading in a series of revealing swimming costumes since their arrival in Spain

Sam, 20, played peekaboo in a sheer black and white kaftan which gave a glimpse of her black bikini and model figure.

 

The blonde glamour model and boutique owner sipped on a cocktail and chatted on her phone at the Buddha Beach Bar - a favourite haunt of the ITV2 stars this week.

Sam was pictured strolling through the shops earlier in the day with her boyfriend Joey Essex and their friends, and she posed for some holiday snaps sitting atop a gold lion.

 

Covered up: Sam Faiers kept her curvaceous figure (almost) under wraps as she sipped on cocktails and posed for souvenir holiday snaps

   

Pout perfected: Amy Childs kept her surgically-enhanced cleavage hidden beneath a white vest but strolled around in just her bikini bottoms

Amy also kept her surgically-enhanced assets covered up in a white vest top by Lipsy.

The beautician was certainly in holiday mode as she wondered around half-dressed in her hot pink bikini bottoms and platform flip-flops.

Meanwhile, Sam and Amy's co-stars Jessica, Lydia and Lucy made the most of the cameras as they strolled along the shoreline in their skimpy swimwear.

Lydia looked particularly fetching in white strapless one-piece by Cheryl Cole's favourite swimwear designer Melissa Odabash.

En masse: Sam and Joey and their friends took time out from sunbathing and drinking for some shopping

Acting up: You can take the girl out of Essex...

Fashion worker Lucy showed off her enviable figure and deep tan in a yellow string bikini.

Mark Wright's sister Jessica wore a black one-piece with a bow tie that accented her newly enhanced breasts and a large cut-out that displayed her trim stomach and belly button piercing.

Lydia Bright wore a tight-fitting white mini dress so short it showed off her white bikini bellow, which she wore with an oversize colourful necklace.

The Only Way Is Essex gang were joined today by Sugar Hut nightclub owner Kirk Norcross and his girlfriend Lauren Pope.

  

Lauren, come get your man: Towie 's Mark Wright presses the flesh with fans of the show in Marbella

Other cast members including Maria Fowler, Chloe Sims and Gemma Collins are also on their way to the Spanish holiday destination.

Lauren Goodger is the only main castmember not in Marbella now, after being told by fiancé Mark Wright that she could not join his 'boys holiday'. She is flying to Tenerife tomorrow instead.

Sam's sister Billie has remained behind in London where tonight she attended the premiere of JLS: Eyes Wide Open, but the 21-year-old is jetting off on her own holiday in Dubai in a matter of days.

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Pretty in pink: Lucy yesterday stepped out wearing a pretty pink and white frilled bikini

Staying safe in the sun: Lucy gets some sun cream applied by a friend as she sits by the pool

It's a hard life: Sam and Amy reclined on their sun loungers yesterday by their hotel pool

 

I'm here! Kirk Norcross flew in today, while Arg looked a little glum as he strolled around tow