For those of you in frigid temperatures around the world (currently Milwaukee is 11 degrees F) today's Topless Tuesdays model should bring a little fire to your loins. Meet Zack Clark.

Zack is represented by Major Model Management. This strapping lad stands erect at 6'2" making him a bit taller than most. Some of you may recall his face from the spread he did with Tom Ford for OUT a few months ago. The rest of Zack's story is a mystery as I can't find anything else about him. Feel free to drop a line if you have the back story on this guy.