Khloe Kardashian Shares Adorable Video of North West and Penelope Disick

Khloe Kardashian is the best aunt ever. 

The reality star threw her nieces — North West and Penelope Disick — a super fun slumber party on Friday night (July 17, 2015). It seriously looks like they had a blast.

“Like a diamond,” Kardashian captioned a video. In it, we see them in adorable bathing suits, laughing and yelling “Diamond” at their aunt. While it’s hard to understand what’s happening, we can’t get enough of their huge grins.

Like a diamond 💎

A video posted by Khloé (@khloekardashian) on

The trio also watched a movie and took a selfie. In the photo, we see a grinning Kardashian looking like she’s about to be knocked out of the frame by a hug from Penelope, while North cheers in the background.

“My babies!! North.P.KoKo,” Kardashian gushed about the pic of the two tots watching TV.

My babies!! ❤️❤️❤️ North.P.KoKo A photo posted by Khloé (@khloekardashian) on

💙

A photo posted by Khloé (@khloekardashian) on