03/13/2014 09:07 EDT | Updated 03/13/2014 12:59 EDT

Kim Kardashian Wears Kylie Jenner's Bikini With Sexy Results (PHOTOS)

Doesn't Kim Kardashian have enough of her own bikinis?

The soon to be Mrs. Kanye West posted two Instagram selfies on Wednesday which showed the buxom brunette sporting a very tiny black two-piece that actually belonged to her younger sister, Kylie Jenner!

"Yep stole Kylie's bikini...she's not getting it back," wrote Kim next to the hot pic. Earlier in the day, the mom posted another photo of herself in the same bikini and rocking a black lace robe.

Kim captioned the pic, "Quick swim before the Dash party!"

The Kardashian Klan were in Miami staying at the Versace Mansion for the opening of the new Dash boutique while they filmed "Keeping Up With the Kardashians."

At the party, Kim sported another revealing outfit: black lacy lingerie underneath a long sleeve metallic crop top and matching pencil skirt that showed off her toned figure.

Check out Kylie in her bikini:

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