The 19-year-old reality star decided to strip down to her nude, lace underwear for a mirror selfie that left very little to the imagination.
Showing off her tiny waist and those classic Kardashian hips, Kylie took the photo as she posed in a very sumptuous-looking bedroom.
Kylie didn't bother with a caption on Thursday (15 September) and let the picture do the talking, while her 74.7 million followers promptly deluged her with comments.
The last we saw Kendall's little sister was during New York Fashion Week, when she took to the city in an outfit that seriously divided opinion.
Perhaps that's why Kylie decided to ditch her clothes this time!
The star has also been busy promoting her make-up range, sharing one of her trademark selfies, pout included, to show off the products.
She told fans, "Wearing DOLCE lip liner $14 and LITERALLY gloss $15. Available right now on KylieCosmetics.com."
Only 19 and already a businesswoman in the making! We're impressed.
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