Twilight/True Blood stars talk dirty in NSFW underwear ad

We already showed you a photo of Twilight star Kellan Lutz as a Calvin Klein underwear model—but wouldn't you rather see him move?

We knew you would.

So here he is revealing his six-pack for X Underwear, along with True Blood's Mechad Brooks, tennis player Fernando Verdasco and soccer star Hidetoshi Nakata.

And we should warn you—though nothing X-rated is bared and all obscenities get bleeped, this is definitely hot enough that it should be considered NSFW.

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