It's a big sister's duty to make fun of her little sister, right?
Khloe Kardashian took to Instagram on Monday to share a hilarious video of her younger sister, Kendall Jenner, falling off a bicycle.
The 21-year-old model, dressed in a furry purple jacket, went for a casual bike ride with Khloe and Kourtney Kardashian, before a rocky road stopped her bike in its tracks -- and brought her to the ground.
While a cameraman graciously ran over to help Kendall, it seems Kourtney and Khloe favor tough love, as they cackled throughout the incident.
"My work here is done..... @kendalljenner," Khloe captioned the video on Instagram.
Kendall fared much better before her fall, as Kourtney shared a pic of the sisters showing off their skills on Saturday.
"Three sheets to the wind," the 38-year-old reality star wrote alongside the shot.
While bikes might not be her thing, Kendall definitely seems to be a fan of jet skis
. See more in the video below.