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Heidi Klum's Race-y Motorcycle Date With Boyfriend Martin Kristen

Splash News/Landov

Heidi Klum took a back seat quite literally for her motorcycle date with boyfriend Martin Kristen and RadarOnline.com has the racy photos.

The German supermodel wrapped her arms around her beau as they took a ride through Santa Monica on his Harley Davidson motorcycle on Saturday.

PHOTOS: Heidi Klum Gets Racy On Motorcycle With Boyfriend Martin Kristen

Despite sporting a crash helmet, Klum, 39, still managed to look as glamorous as ever in black jeans and buckled biker-style boots.

She was all smiles and why wouldn’t she be having just signed on as a judge on America’s Got Talent.

PHOTOS: Teenage Heidi Klum As An Aspiring Model

The Project Runway host is quickly ratcheting up her reality TV resume and will be replacing Sharon Osbourne to sit alongside fellow judges Howard Stern, Howie Mandel and Spice Girl Mel B.

Klum confirmed the news on Monday morning via her Twitter account writing, “Excited 2 join @HowardStern @HowieMandel @OfficialMelB & @nickcannon on @nbcagt as new judge! Will be so fun!”

PHOTOS: Heidi Klum & Bodyguard Watch Youth Soccer Game

The new season begins taping in New Orleans today.