North West Plays With Kylie Jenner’s Lip Kit — “What Happens at Aunt Kylie’s Stays at Aunt Kylie’s!”

You're never too young to play with makeup — especially when it's Kylie Jenner's lip kit!

In a new series of Snapchat photos, the 19-year-old tried out her successful product on her three-year-old niece, North West — and we can't get over how adorable the tot looks.

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"What happens at Aunt Kylie's stays at Aunt Kylie's," the KUWTK star captioned a pic of Nori rocking her "Dead of Knight" shade.

When asked if she liked the black lipstick, the toddler responded with an enthusiastic, "Yes!"

But, we do wonder how Nori's parents, Kim Kardashian, 35, and Kanye West, 39, feel about the makeover.

See more of North's cutest moments with her famous aunts in the gallery below!