Kardashian Curves -- Guess The Sexy Sister!

What's Friday without a frisky photo from the Kardashian crew?! Can you guess which sexy sister put her curves on display in this shameless mirror selfie?!

She's known to flash some skin to the world -- iconically posing for Playboy, with her mom supporting her every step of the way ... "You're doing amazing, sweetie!"

Check out the gallery for the reveal and then see if you can guess the 5-letter word?!