Kylie Jenner celebrates 21st birthday by flipping the bird to her Instagram followers

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When a member of the Kardashian-Jenner family has a birthday, low-key isn’t exactly the word we’d use to describe their celebration. 

True to form, Kylie Jenner’s 21st birthday was anything but low-key. 

Kylie posted a shot of herself with Kendall, Kim, Kourtney, Kris, and Khloe, in which they all put their middle finger up at the camera. 

BIRTHDAY BEHAVIOR! WERE ALL TURNING 21!!

A post shared by Kylie (@kyliejenner) on

How rude. Happy birthday Kylie!

WATCH: Kylie Jenner’s Instagram posts are worth millions

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