Happy birthday Kourtney Kardashian! The reality star turned 36 on Saturday and celebrated her big day in true Kardashian style, with at party at the 1OAK nightclub in Las Vegas’ Mirage Hotel & Casino. Kourtney was accompanied by boyfriend Scott Disick to the bash, however the rest of the Kardashian clan didn’t make trip.

Kourtney KardashianKourtney celebrated turning 36 at the 1OAK nightclub in Vegas, Saturday.

Kourtney, who welcomed her third child son Reign in December, wore a black long sleeve Wolford bodysuit teamed with a Balmain skirt to the party, along with some sexy Tom Ford gladiator style sandals.

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At the bash Kourtney and Scott were presented with giant cardboard cutouts of their faces as well as a four-tier pink and blue birthday cake. According to US Weekly, Scott who sought treatment at a rehab center last month, wasn’t drinking at the party and was instead seen sipping water all night.

But while Kourtney’s famous family didn't make it to the celebrations they all sent their love to the 36 year old on her special day. "Khloé was like, 'Can you please check my Instagram post that I gave for you, I wrote the cutest post,'" Kourtney told E! News. "And I was like, 'I have not even checked my phone.’"

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"My mom wrote the sweetest post, it made me cry. We're having a barbeque tomorrow so I will get to celebrate with all my family members. Khloé came over last night and gave me a present before they went off to Coachella,” Kourtney added.