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Kourtney Kardashian has just proven that she is definitely a hot mom. The 37-year-old star turned heads as she wore a sexy ensemble while attending the third night of the grand opening of the JEWEL nightclub at the ARIA Resort & Casino in Las Vegas on Saturday, May 21.

The ex-girlfriend of Scott Disick showed off her toned tummy while rocking a black leather strapless bra top, matching high waist shorts and a pair of thigh-high suede boots teamed with a black choker necklace. She looked beautiful sporting smokey eyes while letting her wavy hair fall naturally.

While inside the venue, she documented her fun moments with her gal pals like Malika Haqq. In a series of Snapchat videos, the mother of three was seen mingling in a VIP table where she lip-synced to some songs and gave her friend a lap dance. She also partied the night away with her hair stylist Jen Atkin, who took to Instagram to say that Kourtney could "look BETTER after having 3 kids."

So @kourtneykardash not only took us away for a fun girls night in Vegas but also taught ALL of us girls that you can actually look BETTER after having 3 kids. ����¯�¿�½������°������¯������¿������½����¯�¿�½������¤������¯������¿������½����¯�¿�½������°������¯������¿������½������¯������¿������½����¯�¿�½������³����¯�¿�½������°������¯������¿������½������¯������¿������½������¯������¿������½����¯�¿�½������¢������¯������¿������½����¯�¿�½������£����¯�¿�½������¯����¯�¿�½������¸������¯������¿������½����¯�¿�½������°������¯������¿������½������¯������¿������½������¯������¿������½����¯�¿�½������°������¯������¿������½������¯������¿������½����¯�¿�½������¼ Makeup @styledbyhrush #JenAtkinHair

Foto kiriman Celebrity Hairstylist (@jenatkinhair) pada Mei 22, 2016 pada 9:30 PDT

Kourtney later posted on her own Instagram account an image of herself inside the club with Malika and Courtenay Semel. "Vega$," she captioned the photo. Famous faces who also attended the celebration were Halsey and The Chainsmokers.

Vega$ Baby

Video kiriman Kourtney Kardashian (@kourtneykardash) pada Mei 22, 2016 pada 3:06 PDT

Video kiriman Kourtney's Snapchat (@kourtneysnapchat) pada Mei 22, 2016 pada 7:11 PDT

Video kiriman Kourtney's Snapchat (@kourtneysnapchat) pada Mei 22, 2016 pada 7:11 PDT

Foto kiriman Kourtney's Snapchat (@kourtneysnapchat) pada Mei 22, 2016 pada 7:13 PDT

Foto kiriman Kourtney Kardashian (@kourtneykardash) pada Mei 22, 2016 pada 12:58 PDT