In the most recent episode of E!'s hit reality series "Keeping Up With The Kardashians," fans get to go behind the scenes of the Kardashian-Jenner Cosmopolitan cover shoot, Kim grills Khloe about flirting with her ex Lamar Odom and Kris Jenner's reaction to Caitlyn Jenner's Vanity Fair cover story is finally revealed.

Since Caitlyn began her transition from Bruce, Kris has been "all over the place," Kim says in her on-camera interview in the episode. Her emotions have been running high and she's felt overwhelmed, so much that she dropped the ball on a detail for Kendall Jenner's scheduling that almost ruined the family's Cosmopolitan cover shoot. Because of a conflict of interest, Kendall almost wasn't allowed to shoot her own photo by herself. But momager Kris pulled through, and the ladies were able to execute their joint photo shoot, which was a big deal for Kim.

"Cosmo was my first big magazine that I ever did and I had a publicist that I worked with that said 'So what do you want your career to be?' and I said 'I just want to be on the cover of Cosmo one day' and she looked at me and goes 'Kim, let's be realistic. You're never going to be on the cover of Cosmo,'" Kim told Cosmopolitan Editor-in-Chief Joanna Coles. "And I was like 'OK, 50th anniversary!' and now I've got all my family members on."

While the girls were excited for their Cosmo issue, Kris couldn't hold back her emotions after the Vanity Fair issue was released, where Caitlyn made some hurtful comments about Kris in the interview. Kris was so angry that she had to call Kim to vent and she didn't hold back.

"It just sums up that I'm this piece of s--t person who was mean," Kris told Kim. "He can go f--k himself. I honestly wish I never met this man."

Khloe and her ex Odom opened up the lines of communication again after one of his good friends passed away and he called Khloe for support. But Kim's big-sister side kicked in and she called Khloe out for flirting with her ex-husband after all the pain he's caused her in the past.

"I don't know why Khloe and Lamar are talking, but he hurt her so badly," Kim said in her on-camera interview. "As a big sister, I'm just really protective and for her just to be flirting with him on the phone makes me like sick to my stomach."

Watch a clip from the episode below.