Kim Kardashian Found New Booty-Poppin' Partner, Kendall Jenner

Sister, sister!

It looks like Kim Kardashian found a new booty-poppin' partner. Kim's half-sister Kendall Jenner "barged in on" her "booty selfie" at the gym on Friday in Los Angeles.

In the Instagram picture posted by Kendall, the dynamic duo shows of their bodacious behinds, toned legs and tight waists. Both girls donned sports bras and leggings for the trip to the gym. Well, if you got it, flaunt it.

Just last week, the most famous Kardashian sister took a similar picture with her friend Blac Chyna. That pic was a much closer and tighter shot of the booty besties. Kim was accused of photoshopping the image -- something she has publicly denied -- because of the impressive sizes of the derrieres.

Let's just file these as homages to the asset that has brought her fame and fortune.