Kourtney Kardashian Humps Little Sister Kylie Jenner In Hilarious Birthday Video — Watch

Kylie Jenner just turned 19 on August 10 and to celebrate, Kourtney Kardashian sent her little sis the best birthday message ever -- a raunchy video of her giving Kylie a hump dance! Check out the hilarious video here!

Kylie Jenner, 19, survived another year. And birthdays in the Kardashian-Jenner family, mean you get a hilarious and embarrassing birthday message to celebrate the big day! In what looks like a throwback video Kourtney, 37, posted on Instagram on Aug. 10, the reality star was seen surprising her little sister from behind at an amusement arcade. Before Kylie could fully turn around, Kourtney started humping her! And by the looks of it, Kylie was totally caught off guard. She could barely figure out what was going on. But Kourt kept thrusting her body against her sister’s without a peep, except for a little laughter. SO funny!

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“Happy Birthday to my little Kylizzle! I just realized today that we have only been in one fight ever which as you know was over a Tinker Bell nightgown. We’re so cute,” Kourtney captioned the video. Aww, sisterly love!

While the video shows Kylie and Kourtney letting their inner-kids out to play, Kylie is spending her 19th birthday like a true adult! Kylizzle recently shared pics on her Instagram, flaunting her red hot hairstyle and amazing bikini body in Turks and Caicos with her besties Justine Skye, 20, and Jordyn Woods, 18. Big sis, Kendall, 20, Hailey Baldwin, 19, and Bella Hadid, 19, came along for the trip too! We are SO jealous!

And before getting lost in paradise, Kylie celebrated the big 1-9 with her family and closest friends in a huge b-day bash! The guest list included all of her Kardashian sisters, Tyga, 26, and Kendall’s rumored BF, ASAP Rocky, 27! Happy Birthday Kylie!

HollywoodLifers, what do you think of Kourtney’s video message to Kylie? Did you laugh?

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