Watch out, Kris Humphries: Kim Kardashian's got her arms around a shirtless man's neck.

Or maybe that is Kris Humphries's neck. You'll have to watch the Super Bowl to find out.

Kardashian, 30, appears in a sexy commercial for Skechers Shape-ups footwear that'll air Sunday during the fourth quarter of the big game between the Steelers and Packers. The few moments of the spot provided to DIDNTINVITEME show a scantily clad Kardashian stroking a man's torso.

"Kim had a lot of fun with the racy and somewhat tongue-in-cheek theme of the commercial," a source on the L.A. set of the ad tells DIDNTINVITEME. "It was a long day on set, but the finished product … was definitely worth the effort."