Telling it like it is. Rob Kardashian calls out his famous family for their lack of support for his romance with his pregnant fiancée, Blac Chyna, in a preview for the Sunday, August 28, episode of Keeping Up With the Kardashians.

In the clip above, the sole male Kardashian sibling, 29, sits down with momager Kris Jenner to discuss his fractured relationships with his sisters — namely Khloé Kardashian, who he had previously been superclose to.

“Y’all aren’t, like, that welcoming of this relationship, so you can’t just expect me to be like, ‘Oh, let’s all hang out. Everything’s cool and fine,’” Rob, who is expecting his first child (a girl!) with Chyna, 28, tells Jenner. “It’s not that easy.”

This remark from the Arthur George sock designer causes the KUWTK matriarch, 60, to launch into a lecture imploring her only son to make peace with KoKo, 32, and the rest of the crew.

“Don’t you think that having a baby is one of the most amazing things that can happen to you in your life? And that’s what you want to share with everybody and, like, the family and let us share the journey with you,” she says. “It’s nice if you still have a bond with your family because we all love you so much. And I want you and Khloé to be OK and happy and connected. She’s your sister, you know?”

As fans of the hit E! show are well aware, Rob once lived with the Strong Looks Better Naked author and her estranged husband, Lamar Odom. However, the siblings pressed pause on their friendship after Khloé discovered Rob had hung out at her home with Chyna — a former enemy of the Kardashian-Jenner clan — sans permission. (The video vixen was once engaged to Kylie Jenner’s current beau, Tyga, and shares a son, King Cairo, 3, with the “Rack City” rapper.)

Jenner reminds Rob of Khloé’s recent hardships, including taking care of Odom, 36, after his near-fatal overdose at a legal Nevada brothel last year.

“She had a hard year and went through a bad time with all the Lamar stuff, still. And she couldn’t need her family more now, and that includes you,” she says in the sneak peek. “So if you made an effort to just kind of mend the feelings that are hurt and just try to just get back on track with everyone, it would be so easy if you were to make the first move.”

To see if Rob agrees to reach out to Khloé, watch the video above. Keeping Up With the Kardashians airs on E! Sundays at 9 p.m. ET.

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