Kim and Mom Kris add Skechers to the Kardashian Kingdom

Kim Kardashian and her mom, Kris Jenner have been tapped to lead marketing initiatives for Skechers Shape-Up shoes.

The mother-daughter powerhouse will be starring in the brand's global ad campaign, creating a new collection, and also star with sisters Khloe and Kourtney on the "Shaping up with the Kardashians" fitness challenge (which, we must admit, is a pretty clever marketing move on Skechers' part).

And so the Kim Kardashian spokesmodel empire continues to inflate—the sexpot mogul has, as a family affair to a certain extent, built a one-tiny-woman conglomerate based on a sex tape starring her iconic derriere. Skechers is the latest high-value endorsement for Kardashian, who has created a line of jewelry for Bebe, a fragrance and the K-Dash fashion collection with QVC, and who touts everything from weight-loss systems to shopping websites—commanding fees up to $25,000 a Tweet.

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