Kendall Jenner Photobombs Kim Kardashian's "Booty Selfie"

01/12/2014 10:07 am ET | Updated Jan 23, 2014

Kim Kardashian apparently spends a lot of time at the the gym photographing her butt, only this time Kendall interfered. "Barging in on Kim's booty selfie," she captioned the photo.

Kim's last "booty selfie" was the subject of some controversy, when claims arose that she had photoshopped the image.

"It sucks when people make up surgery or Photoshop lies," she tweeted, "when I am so disciplined & work so hard! Just trying to motivate others & show anyone struggling with weight they can totally achieve whatever they want if they are dedicated!"

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