Kendall and Kylie Jenner Pose for 'DuJour', And of Course, Kris Crashes

She's often jokingly called the fourth Kardashian sister thanks to her errr …  youthful actions, but is Kris Jenner gearing up to be the third Jenner sister as well?

Kendall, 18, and Kylie, 17, recently posed for the Fall issue of DuJour magazine -- shot by famous photographer Bruce Weber -- when their mother Kris, 58, got in on the action.

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Kris posted this black-and-white snapshot of herself crashing the photoshoot on her Instagram, dancing with a handsome male model while Kendall and Kylie are relegated to the background.

"Hey guys, follow @DuJourMedia & @JasonBinn for more from this #BruceWeber shoot." she wrote.

But Kendall and Kylie did of course get plenty of solo love in the magazine, baring some midriff in flannel shirts and ripped jeans.

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Kendall in particular -- who's no stranger to controversy -- is sure to raise some eyebrows in this shot, in which what appears to be a significantly older man nuzzles her neck.

... Somebody call Brody?

The fall 2014 issue of DuJour hits select newsstands Sept. 2.