Kourtney Kardashian unwittingly suffered a wardrobe malfunction as she exited her sister Kendall Jenner‘s birthday bash over the weekend.

Kourtney Kardashian Nip Slip

Kourtney, 36, showed the cameras more than she bargained for after she made her way to a waiting vehicle upon leaving Kendall’s 20th birthday party at Los Angeles hotspot The Nice Guy. For the night out, the mother of three sported a risqué sheer black corset underneath a satin bomber jacket and tucked into a pair of leather pants.

Prior to ditching the fete, Kourtney seemed to be having a blast at the star-studded event. In one Instagram snap the reality TV star shared, she’s pictured dancing happily with hairstylist Scotty Cunha.

Kourtney also posed in a series of photo booth snaps, including one with all her sisters – birthday girl Kendall, Kylie Jenner, Kim Kardashian and Khloe Kardashian.

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A photo posted by Khloé (@khloekardashian) on

Kourtney dumped her longtime boyfriend and father of her children Scott Disick back in July after pictures emerged of the hard partier cozying up with stylist Chloe Bartol in Monte Carlo. Disick has since reentered rehab to deal with his drug and alcohol issues, but there’s no evidence that they will be getting back together anytime soon.

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