The Kardashian family threw Kendall and Kylie a joint graduation party on Thursday night, although Kendall graduated a year ago.

Earlier this week, Kylie revealed she finally graduated high school last week and she celebrated with a party her mom, Kris Jenner, threw.

“I love my mom for doing this,” she wrote on Instagram along with a photo of herself holding a diploma. “Thank you for making this experience as normal as possible for me.”

The party was a surprise, which was shown by the Instagram account KylizzlesSnapchats, which posts all of her Snapchats.

"What is happening? This is so crazy!" she yelled as she walked into the house with Kendall.

Back in May, Kendall and Kylie’s older sister Kim Kardashian debunked rumors that they weren’t in school. “Perception can be reality and people assume maybe she's not in school because she's not posting about being in school all the time,” she said.

video via Instagram from Kylizzlessnapchats

image via Jennifer Graylock/INFphoto.com