Kourtney Kardashian and Kylie Jenner Strip Down in Sexy Snapchats -- See the Pics!

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Kourtney Kardashian and Kylie Jenner are showing off their curves!

The sisters both took to Snapchat on Friday to work what their mama gave them.

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Kourtney was first to share a sexy snap on the app, posting an aerial pic of her cleavage.

"Makeup view," she captioned the racy pic, before climbing into a helicopter.

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The mother of three also posted a sexy bikini-clad shot on Instagram.

"Island ting," she wrote alongside the black-and-white photo.

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Kylie, meanwhile, sported nude undies as she showed off her toned tummy on Snapchat.

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While Kourtney and Kylie are leaving very little to the imagination on Snapchat, the sisters were much more covered up earlier this week while rocking head-to-toe burgundy at a family meeting on Wednesday.

See more in the video below.