They have a child together.
It also comes the same month that younger sister, Kylie Jenner, followed in Kim's footsteps by.
In June, Khloe turned 33 with a birthday blowout for the ages -- and all of her sisters were on hand to surprise her at the bash.
She has the Armenian-American, Irish, Scottish, and English descent.
Another nude snap showed the mom-of-one sitting on the ground with her glowing skin on full display.
The sisters also made a cameo appearance in the series 90210.
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Although nothing really surprises us anymore, the images are -- dare we say -- even more overtly sexual than other past posts.