So that's how the Kardashians keep their booties lookin' so good!
In a sneak peek from Sunday's "Keeping Up with the Kardashians," Khloe Kardashian gets her butt lasered -- on camera -- as sisters Kim Kardashian and Kendall Jenner watch.
Check out the clip above to see what Kim has to say about her little sis' backside!
"I'm going to get my whole butt, the stretch mark and the cellulite, lasered," Khloe candidly says in the video.
Kim admits that she has "nothing to do," so she decides to stay and watch ... while grubbing on some snacks with her 19-year-old model sis.
While Khloe doesn't seem to care that her sisters want to watch the painful-looking procedure, Kim definitely throws some shade at the 30-year-old's big booty. Competition, much?!
Make sure to check out the video above to see what Kim says about Khloe's "big ass."
In another clip from the same episode, Khloe also throws sister Kylie Jenner under the bus by revealing a cosmetic procedure she had done.
What do you think about the reality star's cosmetic procedure? Tell toofab in the comment section below and check out the gallery above to see all of Khloe's sexiest shots!