Khloé Kardashian Says Kylie Jenner Is the 'New Rob' Because She's Never Around

On Sunday's episode of Keeping Up with the Kardashians, Khloé brought up the noticeable absence of her younger sister Kylie

An important member of the KarJenner crew has been missing from this season of Keeping Up with the Kardashians.

On Sunday’s episode of the family’s E! reality show, Khloé Kardashian brought up the noticeable absence of her younger sister Kylie Jenner after the family gathered for a meal at Kourtney‘s home — with the exception of Kylie, 20, and brother Rob Kardashian, 30.

As everyone began settling down at the table, family friend Larsa Pippen asked if Kylie was coming — and Khloé, 33, scoffed in response.

“Yeah, right,” she said. “Kylie’s the new Rob.”

As fans of the show are well aware, Rob — who has struggled with weight gain and depression in recent years — stopped filming the show for a significant period. (He did, however, appear on the two most recent seasons and starred on his own E! spinoff with his now ex-fiancée Blac Chyna, Rob & Chyna, which aired for one season last fall.)

These days, Kylie — whom multiple sources have confirmed to PEOPLE is expecting her first child, a baby girl, with her boyfriend Travis Scott — appears to have picked up some of her brother’s reclusive tendencies: Though she did participate in the KUWTK 10th anniversary special, which aired in September, she has been largely absent from this season thus far, and has remained entirely out of the spotlight in general.

Last week, a source told PEOPLE that Kylie — who hasn’t publicly addressed her pregnancy but has seemingly teased the news on Snapchat — “is only trusting her closest friends and her sisters right now.”

“She wants to reveal things on her own terms but she’s of course having fun teasing everyone,” said the source. “She knows all the attention is on her and her baby bump, but she won’t share until she wants to.”

The source also said that the expectant star is struggling to adjust to her changing figure.

“Her body is changing,” said the source. “And she’s very self-conscious about it.”

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But despite her insecurities, Kylie has a loving boyfriend by her side. According to the source, Scott, 25, is “so excited about the baby” and the two are “very happy together.” (The couple, who have been dating since earlier this year, got together after Kylie split from heron-again, off-again boyfriend of nearly three years, Tyga.)

“They spend time away from the spotlight and he’s been supportive,” said the source, adding that the parents-to-be are just “trying to enjoy this time for themselves” and want to “keep it private as long as they can.”

“They know it’s going to be a frenzy when they do come out,” said the source. “But Travis is crazy about Kylie and he feels so lucky to have her and the baby.”

“The family has been welcoming,” added the source. “They know how important it is to Kylie that everyone gets along.”

Keeping Up with the Kardashians airs Sundays (9 p.m. ET) on E!

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