Leonardo DiCaprio's Girlfriend Dons Lingerie in New Ads

Credit: Gilles Bensimon for Rampage

Leonardo DiCaprio's on-again girlfriend is getting intimate.

Bar Refaeli, 24, strips to a lacy bra and panties for Rampage's spring ad campaign -- shot in Paris Hilton's former Los Angeles home. Check out exclusive behind-the-scenes images at left (and for more photos from the shoot, visit PopSugar.com).

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The Israeli supermodel also poses in a flirty sun dress and one-shouldered bathing suit in the ads, which hits magazines this March.

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"Bar is the ideal Rampage woman; she is warm, sexy, fun and free spirited," says Dari Marder, the brand's Chief Marketing Officer, in a statement.