King Kylie Jenner 's court came out in full to support her cosmetics pop-up Friday night ... with her sisters leading the charge.

The reality star and mogul -- who recently embraced her "King Kylie" persona while featured on Terror Jr.'s song "Fourth Strike" -- held the event in L.A. ... and, she hopped out of a car looking Barbie Chic and holdings hands with her daughter Stormi . Gallery Launch Gallery Getty

KJ showed off her curves in a bright pink latex dress and a matching pink wig ... really putting the HOT in hot pink.

Her sisters Kim and Khloé Kardashian followed her out of the whip ... each in barely-there outfits of their own. Instagram / @haileybieber

Hailey Bieber went a bit off theme in an alluring black gown ... but, she was still the li

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