The Keeping Up With The Kardashians star opted for a cheeky frock as she helped kick off the Memorial Day celebrations at 1Oak Night Club.
Khloe's black gown fell to the knee and featured sheer mesh panels, giving a glimpse of her flat stomach and legs. She finished her look with slicked back hair, smoky eyes and a berry pout.
She wasn't the only Kardashian in Vegas over the weekend: sister Kourtney was also there helping boyfriend Scott Disick celebrate his 32nd birthday.
They also chose 1Oak Night Club.
Judging by Khloe's postings to Instagram she had a pretty amazing night. Unfortunately for her, it was followed by an early start and a long haul flight to Dubai.
A worse for the wear Khloe said: "Ugh, my head. Hangovers are the worst. This flight to Dubai will be utilized well with this long ass nap I'm about to take. I look rough lol."