Petra heated up the frosty set in a series of skimpy sets. (Photo: China Daily)

Czech supermodel Petra Nemcova has stripped off for a racy new photo shoot for a lingerie label.

She stars in a new campaign for Tres Jolie, which means "very pretty" in French, and she certainly lived up to its name.

The leggy blonde heated up the winter wonderland set as she posed in a series of skimpy outfits from the range.

The 28-year-old set tongues wagging at last month's Oscars after she arrived arm-in-arm with actor Sean Penn, 47, who recently split up with his wife, Robin Wright Penn, after 11 years of marriage.

The unlikely pair were the talk of the town after they were spotted cosying up at Elton John's annual AIDS Foundation post-Oscar party.

They also reportedly enjoyed each other's company at Los Angeles club Villa this month.

But the model has talked down rumours of a budding romance.

She has insisted:" We are friends. He is on the advisory board of my charity."

Petra launched The Happy Hearts Fund for disadvantaged children in 2005 after surviving the Indian Ocean tsunami tragedy - her British photographer fianc Simon Atlee died tragically in the disaster.

She has been single since splitting from James Blunt last year after rumours the singer had a wandering eye, but hopes to settle down and eventually start a family.

She has said: "I definitely want to have children. I've set myself a target of five. I want a man who I can trust. There has to be trust, honesty, respect, freedom and love."