Kim Kardashian Snaps Sexy Selfie in Little Sister's Bikini

PHOTO: Kim Kardashian posted this selfie to Instagram, March 12, 2014.kimkardashian/Instagram
Kim Kardashian posted this selfie to Instagram, March 12, 2014.

Kim Kardashian stole something from little sister Kylie Jenner and "she's not getting it back!"

Interested in ?

Add as an interest to stay up to date on the latest news, video, and analysis from ABC News.
Add Interest

Hours after Jenner, 16, posted a pic of herself by the pool in Miami wearing a skimpy black bikini, Kardashian followed suit, with the same suit! The family is in Florida for a store opening.

The reality star, 33, posted her textbook selfie with the same swimsuit, with the caption, "Quick swim before the Dash party!"

SEE: Kim Kardashian Through the Years

Kardashian had no trouble showing off her insanely flat stomach.

She followed up her post with another from the side, showing off those famous curves. And she admitted her theft.

READ: Kim Kardashian Slams Butt Implant Rumors

"Yep stole Kylie's bikini ... she's not getting it back," she said.