Talk about steamy. In true Calvin Klein fashion, the envelope was pushed once again. Calvin Klein Underwear has launched a microsite as part of their new digital campaign called  xmarkyourspot.com to promote their new Calvin Klein X Underwear line. The site will be the exclusive online destination for mini-films featuring the hot campaign models featured in the promo video above. If they look familiar to you, they should. The stars are Twilight vamp, Kellan Lutz, Desperate Housewives', Mehcad Brooks, Spanish tennis star, Fernando Verdasco and Japanese footballer Hidetoshi Nakata. It's understandable if you didn't recognize them right away. It was hard to focus on the face sometimes.