Kylie Jenner -- Khloe's Twerking Steals the Show at Graduation Party (VIDEO)

Kylie Jenner should have been the focus at her graduation party Thursday night, but Khloe Kardashian's ass hijacked the event.

Kylie, along with her family and a few friends, celebrated KJ's graduation with a kick ass party at Kris' house. Kylie, who was homeschooled, received her diploma from Ryan Seacrest.

Kylie and Kendall are close, but who knew this close ... though it wasn't quite as awkward as the infamous "reach around video" ... but still.