While it possibly might cause a few car crashes, Kellen Lutz says he’s a little nervous about what his mother might think with his revealing body “all over billboards.”

The “Twilight” star posed for ads for Calvin Klein’s new X Underwear collection, and the ladies cannot wait to see it.

“In the beginning, I was just, like, ‘So, is the temperature going to be hot? Do I need, you know, fluffers maybe?’” said Lutz.

But Lutz was surprised that it wasn’t too hard to bear lots of skin. “They made it really easy. The clothes fit great — there wasn’t anything that was riding up, so you don’t feel uncomfortable posing. But now my nude a*s is going to be all over billboards, we’ll see what my mother thinks.”