Supermodel Irina Shayk is used to baring most of her body for swimwear and lingerie photo shoots - but don't expect to ever see her on the pages of "cheesy" Playboy magazine.

The reigning Sports Illustrated Swimsuit Issue cover model poses in several tiny outfits and seductive poses for the February 2012 issue of Esquire UK - including a topless shot - but when it comes to baring all on the pages of a magazine the Russian in her makes her resist the offer from Hugh Hefner & co.

"I would never do Playboy," she says. "Yes, I am a lingerie model, but I have class. Playboy offered me so much money last year. I was like, 'No. Way.'"

The sexy fiance of superstar soccer player Cristiano Ronaldo adds, "I think of myself as a cover girl. But I would never do some kind of cheesy magazine."

Irina plans on sticking to her decision, too.

"You can't break Russian people, you know? 'Cos we're made in cold snow," she says. "We're very resistant."

But then again, never say never, right?

"All right, Naomi Campbell and Claudia Schiffer did it. But they did it at the end of their career and it was classy," she adds.

Check out more of Irina Shayk in the February issue of Esquire in the UK, on newsstands Thursday, or at

See Irina's topless shot for Esquire on page two (possibly NSFW)...