Kendall Jenner wants to show off her - for lack of a better word - BUTT in a very booty-licious selfie with her sister Kim Kardashian. But just like her sisters (entire family) she got slammed by many critics and fans for joining the workout selfie bandwagon Friday.

E! News reports that Kendall Jenner was more than pleased to show off her toned physique with her sister Kim, who has been hitting the gym and working out extensively to shed her baby weight off.

In her Instagram account, Kim's younger sister posted the pic Kim took while both of them are preparing for their workout routine. Kendall captioned it with: "Barging in on Kim's booty selfie." And true enough she appears to be enjoying barging in the photo while flaunting her big booty alongside her 33-year-old sister.

While the 18-year-old Jenner intended to share the photo to her fans only, it unfortunately landed several news sites.

Although on her own Instagram account, only a few fans questioned her gesture, on several news sites especially on E! News, Kendall Jenner and her family received a lot of bashing and loathing from many critics.

"This is gross just like the last one. This family should GO AWAY," one commented.

"So I guess it's just a matter of time before Kendall follows in her big (and I do mean BIG) sister's hoof steps and makes a nasty xxxvideo, complete with buttbanging, peepee baths, and s h i t eating!" another wrote.

"What a shame that the younger children are following in the footsteps of the older sisters. Nice example set by Mama and especially sister Kim. Not only do we have to hear every day about Kim, now we will continually hear about Kendall. Why doesn't this family just go away. What a disgusting family!" a user named Lin commented.

What do you think about Kendall Jenner's booty selfie with her sister Kim? Sound off in the comment section below.