Kellan Lutz Sizzles in New Calvin Klein Underwear Ads

X marks the spot! Kellan Lutz looks smokin' in the new Calvin Klein underwear campaign. The Twilight hunk seems totally comfortable in practically nothing, as he joins the ranks of Marky Mark Wahlberg and other A-listers who have stripped down to their skivvies for the famed title of "Calvin Klein underwear model."

The 24-year-old is featured wearing CK’s X Underwear, a new line hitting stores this month.

OK! NEWS: KELLAN LUTZ MAY BE BARING HIS BODY IN CONAN THE BARBARIAN

A new CK website featuring shots of Kellan and other models will be revealed later this month!

Print ads will appear in magazines starting in March.

Is anyone siding with Team Emmett Cullen now?