The snap, which she took in the bathroom mirror after changing into her bikini, shows off the 17-year-old's perfect physique as she poses in a tiny black bikini, accessorized with an array of gold bangles, while displaying her long manicured talons.
The photograph was taken just before she and sister Kourtney Kardashian, 36, took a break from the hot August sunshine by taking a dip in the pool. "Kourt & Ky swim session," the youngest Keeping Up With the Kardashians star captioned the photo.
Jenner turns 18 on Monday, August 10 and is celebrating by holding a party in Montreal, Canada the following weekend, where she can make the most of the Canadian drinking age.
A couple of hours after posting the sexy bikini snap, Kylie posted another bikini photo to her Instagram account — this one the official flyer for her birthday party on Sunday, Aug. 16.
"Hello Canada. My birthday is coming up & well thank you @team.productions and @oli_beachclub for having me in to celebrate – can't wait to party at #beachclub #montreal #whoismrsmith," the reality star wrote.
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