The reality star watched a movie and posed for selfies with her sisters' children

By peoplestaff225
July 18, 2015 10:55 AM

Aunt Koko brings the fun, once again.

Khloé Kardashian had quite the ladies’ night on Friday, laughing and taking snaps with two of her littlest family members – North West and Penelope Disick.

Kardashian documented her evening with her tiny nieces, taking in a flick and posing for selfies with Kim Kardashian West‘s daughter North, 2, and Kourtney Kardashian‘s daughter, Penelope, 3.

In the first of the black and white photos shared to Instagram, the toddlers attentively watch 2014 animated children’s movie The Book of Life. Both girls have their hair pulled back into up-dos, and appear to be wearing leotards.

Courtesy Khloé Kardashian

“My babies,” the reality star wrote, adding “North.P.KoKo.”

Later in an adorable video, North and Penelope repeatedly sing “diamond,” giggling endlessly as they smile for the camera and hide under what appears to be a sheet.

“Like a diamond,” Kardashian titled the clip.

In a final photo, the star cheekily sticks her tongue out for a selfie, with Penelope riding on her back and North grinning in the background.

Kardashian has been supporting Kourtney in the weeks following her publicized split from longtime boyfriend (and Penelope’s father) Scott Disick.

North West Wears ‘BabyYeezy’ Bulletproof Vest!

“Kourtney’s whole family is supporting her and helping her,” a source previously told PEOPLE. “Since the split announcement, she has spent a lot of time with Khloé and Kim. They are helping her daily with whatever she needs.”

Apparently, that help also includes babysitting duties!

— Lindsay Kimble