16 Before & After Photos Prove Kardashian Butts Get Bigger Over The Years — Implants Or All-Natural? Then & Wow 2020

Are they plastic fantastic — or all-natural?

The Kardashians are known for their famous curves, but were they always so bootylicious or are these famous behinds the result of butt implants? RadarOnline.com takes a look at the girls’ butts in the past and present.

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Kim Kardashian is the most bootylicious of all her sisters and here she is showing off her banging butt

in 2014.

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In 2007, Kim's famous derriere looked much smaller than it does today.

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There's the booty that we know and love! How much larger does Kim's rear end look in 2014?

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But Kim's curvaceous bottom wasn't quite as big back in 2006.

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Khloe Kardashian's badonkadonk was on full display in 2014 and a top doc previously told Radar she had a "Brazilian Butt Lift

."

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But in 2013 Khloe's back side looks significantly smaller in this striped dress.

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These pink pants show off Khloe's bodacious back side, leading many to wonder if she's had a butt implant too.

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Skin tight dress = Khloe's rump revealed!

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Kylie Jenner is only 17, but she rivals big sis Kim in the big caboose department!

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In March 2014, Kylie's buns didn't look quite as big. What is she doing to pump it up? All of the Kardashian and Jenner gals insist their butts are God-given.

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Does anything come between Kylie and her jeans? Only a big backside!

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Just a few years ago, the youngest sister's bum was a lot tinier than it is today.

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Red-hot Kendall Jenner has a sizzling booty in late 2014.

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Earlier in 2014 Kendall's buttocks didn't bounce out as much as they do now.

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Here's Kendall's rear end!

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Wild tights reveal Kendall's tushie is just as big as her sisters butt implants