Kim, Kourtney and Khloe Kardashian are so excited about their new denim line that they decided to wear nothing but their jeans in a new ad.Kim explained on her blog why the sisters opted to go topless.

Kim writes:

“Kourt, Khloe and I decided to go natural for our Kardashian Kollection denim shoot with Nick Saglimbeni and pose in only our favorite jeans! What do you think of the pic? I think it’s such a beautiful shot and Khloe and Kourtney both look so stunning! Xo”

Mother of one, Kourtney tweeted about their new snap: “‘We banned tops from our Kardashian Kollection denim shoot! Jeans only, baby!!”

The Kardashian Kollection Denim is available at Sears. The line promises to “hug your curves”.