Hey there! Heidi Klum poses nude as the star of Sharper Image's "Gift Right" 2014 holiday campaign. Credit: courtesy of Sharper Image

If you ask Heidi Klum, it's the sexiest time of the year!

Sharper Image tapped the supermodel, 41, to be the gorgeous face of their "Gift Right" holiday campaign, and the brand had quite the cheeky idea in mind for it.

"We do have a closed set today, because I'm not wearing a lot of clothes, but you are getting a little sneak preview," begins Klum in the exclusive behind-the-scenes video above, filmed during the Project Runway host's steamy shoot.

While clad in skimpy ensembles—jeans with no shirt, only a blouse, and at one point, nothing at all—Klum posed for various setups meant to anchor the questions: "What does Heidi Klum play with in the bath?", "What makes Heidi Klum turn down the lights?", and "What does Heidi Klum like in bed?"

Keep your minds out of the gutter! The answer to the latter question is the Sharper Image Sound Soother, of course. According to the mom of four, the question, "What turns Heidi Klum on?" is "Not something sexual, I'd say, but it is this double entendre—it's a USB charger."

And that's just how she likes it! Klum says she never feels sexier than when she's taking it off for the camera. "[I feel sexiest] when I'm shooting, to be honest—the less I have on," the model told Us. "Many people maybe are the opposite, like maybe they [prefer to be] more dressed. But the less clothes I have on, the easier it is for me to shoot, and the sexier I feel."

Scroll down to see the sexy topless behind-the-scenes shots of Klum working it for Sharper Image.