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Kourtney Kardashian

Denise Truscello/WireImage

Could they be any cuter?

Kourtney Kardashian and Scott Disick jetted off to Las Vegas over the weekend to celebrate her 36th birthday at a party at the 1OAK nightclub in the Mirage Hotel & Casino.

Kourt, who gave birth just four months ago to her and her longtime beau's third child, son Reign, showed off a trim figure in a chic, black, long sleeve Wolford bodysuit and matching Balmain skirt, paired with Tom Ford gladiator-style sandals.

Inside the club, she and Disick, 31, got cozy...

Kourtney Kardashian, Scott Disick

Denise Truscello/WireImage

...and silly! The two were presented with giant cardboard pictures of their faces.

Kourtney Kardashian

Denise Truscello/WireImage

...which they seemed to enjoy thoroughly.

Us.

A photo posted by Kourtney Kardashian (@kourtneykardash) on

Goodnight vegas

A photo posted by Scott Disick (@letthelordbewithyou) on

The exact same props were also seen at mom Kris Jenner's 59th birthday party at the same club last November.

Go-go dancers presented Kourtney with a four-tier pink and blue birthday cake.

Kourtney's other family members were not spotted at her birthday party. Sisters Khloe Kardashian, 30, Kendall Jenner, 19, and Kylie Jenner, 17, are in Indio, California for the second weekend of the 2015 Coachella Valley Music and Arts Festival.

Kourt did, however, receive several heartwarming public birthday messages from her loved ones.

Kourt also received what she said were "birthday flowers from my two favorite men!"

"[Disick] got me roses. My brother got me roses," Kourtney told E! News. "And then he got me a watch. He's really into watches, so I leave it up to him to build my watch collection. So I love it, I was really excited."

Birthday flowers from my two favorite men! ????

A photo posted by Kourtney Kardashian (@kourtneykardash) on

Hear more from Kourtney Kardashian about her Las Vegas bash on E! News, which airs on E! at 7 p.m. and 11 p.m.!

Watch an all-new episode of Keeping Up With the Kardashians on Sunday at 9/8c on E! Also, check out sneak peek videos!