Kourtney khloe kardashian

Khloé Kardashian
Misses Sister
Kourtney's Birthday
Bash to Throw a Party
of Her Own

Getty Images

Never one for doing things small, Kourtney Kardashian rang in her 36th birthday with a huge party at 1 OAK in Las Vegas on Saturday surrounded by family and friends.

But there was one noticeable absence: Kourtney's sister Khloé Kardashian.

Although the sisters are often seen to be the best of friends among all of Kris Jenner's brood, Khloé was too wrapped up in throwing her own soiree at a rented house near Coachella Music Festival to attend her big sister's birthday.

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'TMZ' reports that 100 celebs are expected to show up for bash, which is serving as the launch of Khloé's new group messaging app Regroupd.

However, Khloé didn't let the date pass by without a typically public message to her sister - and neither did her family! Check out the windfall of Kardashian well-wishes below.

Happy birthday to one of the most monotone chicks I've ever met. It's one of my favorite things about you!! Bible! Every single day I become more and more thankful for how many permanent God given best friends I have in my life. Kourt you are the yin to my yang, the Siegfried to my Roy, the Lucy to my Ricky, The Thelma to my Louise, the Wayne to my Garth, the Posh to my David, the sugar to my spice, the icing to my cake. I cannot express how much I love you, respect you, admire you… You inspire me every day. I couldn't ask for a better big (little) sister. My life would be meaningless without ALL of you. So with every single birthday I am more and more appreciative that we get to spend another year together only strengthening our bond as soulmates every single one of us.

A photo posted by Khloé (@khloekardashian) on

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