Even the Kardashian-Jenners love a good game night

By Stephanie Petit
Updated June 16, 2016 11:45 AM

How does one score an invitation to a Kardashian-Jenner game night?

In a new clip from Sunday’s episode of Keeping Up with the Kardashians, the girls and their pals, including Tyga, Scott Disick and the real Todd Kraines, pull out Cards Against Humanity during their ski trip to Vail, Colorado.

Kourtney Kardashian, 37, starts things off by posing the question, “Why am I sticky?” as her competitors claim to have the best answers. But it Disick, 33, who ultimately deserves the win for his answer: Justin Bieber.

As the gang cracks up over their raunchy answers, Khloé Kardashian, 31, gets serious and confesses the one thing missing from their vacation was Rob Kardashian.

“We are playing such fun game and spending really great quality time, but I can’t stop thinking about my brother,” she says during her interview. “He’s the one piece of this puzzle that’s missing, and I really wish he was here because he would love this trip.”

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The family thinks Rob, 29, has distanced himself from them since starting his romance with Blac Chyna, with whom he’s expecting a baby.

“No one [in his family] is jumping up and down with excitement today,” a source told PEOPLE when Rob announced his engagement to Blac Chyna, 28. “They have made a united decision as a family to not comment on social media yet about Rob’s engagement. The news is not shocking, and not totally unexpected.”

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