The 19-year-old reality star was helping throw Tyga‘s son King a birthday party.
It was there that she let North and her little pal Ryan try on her lip kit colors!
“Okay, you wanted black, yeah?” Kylie says in one video. “Oh your little lips.”
She also posted a photo, writing, “What happens at Auntie Kylie‘s stays at Auntie Kylie‘s.”
Watch the cute video of Kylie putting one of the darkest shades on North below!
FYI: North West is wearing Vans shoes.