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Khloe Kardashian, Malika Haqq, Khadijah Haqq, Birthday Party, 1OAK

Denise Truscello / WireImage

Khloe Kardashian partied with her besties Friday night.

Wearing a skintight, sparkling black jumpsuit, black pointed pumps and a gold metal mesh Australian crystal-encrusted clutch, the 31-year-old Keeping Up With the Kardashians star celebrated with twins and Dash Dolls stars Malika Haqq and Khadijah Haqq at their 33rd birthday party at the 1OAK nightclub inside the Mirage Hotel & Casino. The birthday girls wore chic black dresses and sandals.

"I couldn't love them anymore than I do!!" Khloe said on Instagram Saturday.

Before hitting the club, they joined Khloe for a meal at the STACK Restaurant & Bar. At 1OAK, they were joined by Khadijah's husband Bobby McCray and singer Cassie, E! News has learned.

The group was seated at a VIP table behind the DJ booth and appeared to be in great spirits as they danced, sipped cocktails and Champagne and greeted fans.

Khloe Kardashian, Malika Haqq, Khadijah Haqq, Birthday Party, 1OAK

Denise Truscello / WireImage

Khloe Kardashian, Malika Haqq, Khadijah Haqq, Birthday Party, 1OAK

Denise Truscello / WireImage

Cocktail waitresses presented Malika and Khadijah with a 4-tiered pink, gold, and rhinestone birthday cake. The group left round 2:30 a.m.

—Reporting by Sara Kitnick