The sisters – who have notably grown apart in recent months – seemed distant as they joined their kids for dinner and a slumber party on Wednesday night.

Kim and Kourtney Kardashian were spotted looking tense as they reunited at North’s birthday celebrationsCredit: BackGrid

They seemed distant as they joined their kids for dinner and a slumber party on Wednesday nightCredit: BackGrid

Kim, 43, took North and her closest friends – including Jessica Simpson’s daughter Maxwell and Selena Gomez’s sister, Gracie – to Nobu to celebrate her eldest child’s 10th birthday.

They were joined by Kourtney, 44, and Kourtney’s daughter Penelope, 10.

The sisters kept their distance from one another and seemed somber during the outing.

The group wore pink pajamas and took a party bus to the exclusive restaurant.

They later headed to the Beverly Hills Hotel for a Hello Kitty-themed party, with teepees and mocktails.

The apparent tension between the siblings comes after Kourtney slammed Kim for using her Italy wedding to Travis Barker as a “business opportunity.”

In Thursday’s episode of The Kardashians, the Poosh founder accused the Skims mogul of copying her lavish Portofino nuptials.

Kourtney told their sister Kendall Jenner she was hurt after Kim chose to partner with Dolce & Gabbana mere months after her May 2022 wedding.

They wore matching pink pajamas while leaving a party busCredit: The Mega Agency

The group was joined by Kourtney’s daughter PenelopeCredit: The Mega Agency

“So Kim is in Milan, you know, doing this whole Kim/Dolce & Gabbana, Ciao, Kim, living la dolce vita, whatever,” Kourtney said.

The reality star – who wore a custom D&G dress to her wedding – went on: “It’s not like I did their campaign and she did their campaign right after.

“It’s my actual wedding. That wasn’t a business deal for me. I did it because it felt really personal.”

Kourtney said Kim always has “such an abundance” of “opportunities” for partnerships, but that pursuing a collab with D&G seemed to take “precedence over hurting your sister.”

KOURT’S COMPLAINTS

“It’s just legit copying my wedding,” she continued, pointing out that Kim used references from D&G’s ’90s archives for her collection – just like Kourtney did for her wedding.

“While we were at our wedding, I guess Kim was having these conversations with Dolce that I didn’t know about, and she had called me and said she was doing a Skims collab with Dolce & Gabbana,” Kourtney said.

She claimed Kim “wasn’t happy” at her wedding, and her friends told her the Skkn founder was spiraling at the event.

“I think she sees everything that I had there and takes it for her own and she doesn’t even see it,” Kourtney said. “She sees it as, like, the dollar signs.”

Kim hit back at Kourtney’s claims, insisting that she “couldn’t have been more mindful” about the collab and avoided incorporating specific looks “out of respect for Kourtney.”

“She doesn’t know I have the email string begging to push it a year,” the mother of four said.

“What I’ve realized in this lifetime is that everyone has their own truth of how they think something happened and it’s weird, you know.

“It’s all gonna come out on the show. This is our therapy.”

Kourtney looked stone-faced as she walked along with the groupCredit: BackGrid

The sisters have been feuding for several monthsCredit: Instagram/Kim Kardashian