Irina Shayk Sizzles in Sports Illustrated

In new swimwear campaign

This year she was crowned the 2011 Sports Illustrated Swimwear Edition cover girl - a coveted role that helped launch the careers of supermodels Heidi Klum and Tyra Banks.

And looking at these pictures, it is easy to see why.

Irina Shayk pours her stunning 34-23-35 figure into some swimsuits as the face of Miami designer Luli Fama's 2011 collection.

Smouldering: Irina Shayk sizzles in a new swimwear campaign

Christiano Ronaldo's girlfriend pouts and poses up a storm in the sizzling campaign as she models an array of colourful designs.

The 25-year-old gazes seductively at the camera wearing a bright purple string bikini with her brunette curls tumbling down her back.

In another shot, Irina models a black cutaway one-piece as she strikes a fierce pose by the pool.

There is plenty of skin on show in the tiny bikinis and sexy cutaway one-pieces, and Irina says her trim physique is down to a love of exercise and not starving herself.

Cover girl: Irina is the new face of Miami designer Luli Fama and appears in a collection of colourful swimwear

Seductive: Christiano Ronaldo's girlfriend has said she loves going to the gym to keep her toned body in shape, but never diets

She told StyleBistro recently: 'I never really diet. I think that a person can eat what she likes and do some exercises to be in shape- doesn't matter if it's going to be gym or swimming or walking in a park or pilates.

'It should be a pleasure as positive emotions always make you beautiful! I personally love going to [the] gym.'

Despite making her living as a swimwear and lingerie model, the Russian beauty attended the opening of a pool party in Las Vegas last week and kept her figure under wraps.

Cover up: Irina flaunts her figure in the new campaign but kept it under wraps at a recent pool party in Las Vegas

Irina was asked to open the summer season of the TAO Beach at The Venetian hotel in Las Vegas at the weekend.

And while she was surrounded by bikini-clad party goers, Irina kept covered in a silk play suit.

Meanwhile her boyfriend helped his team Real Madrid to victory this week, scoring one of three goals that saw Real Madrid defeat Athletic Bilboa 3-0 at San Mames.