Fashion Kendall and Kylie Jenner Pose for 'DuJour', And of Course, Kris Crashes By Antoinette Bueno 9:28 AM PDT, August 20, 2014 Photo: DuJour 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. PHOTOS: Kendall Jenner's 5 Most Nearly Naked Moments 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. www.DuJour.com," 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. PHOTOS: Kendall Jenner Steals the Show at Chanel! 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.