Jenner, 19, and Kardashian, 36, went topless and sported identical looks in a promo for their KKW x Kylie makeup collection.
"COMING SOON @kyliecosmetics #KKW," Jenner captioned the post for her 92 million Instagram followers.
Jenner launched Kylie Cosmetics in 2016 following the success of her Kylie Lip Kits. She previously collaborated with sister Khloe Kardashian on the KoKo Kollection by Kylie Cosmetics, a set of lip products.
"The Koko Kollection. The first Kylie Cosmetics kollaboration. Can't wait for everyone to experience this gorgeous range of lip products created by @khloekardashian," the star announced in November.
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