Paris Hilton and Kendall Jenner get friendly at the Kick'N It For Charity Celebrity Kick Ball Game in Glendale, Calif. on July 19. Credit: JCalderon/Splash News

Uh oh! Kendall Jenner may have pulled a major faux pas over the weekend, getting friendly with Paris Hilton, famously the former friend of her half sister Kim Kardashian

The two were photographed palling around on Saturday, July 19 at the Kick’N It For Charity Celebrity Kick Ball Game in Glendale, Calif. Other stars in attendance included Kylie Jenner, Chris Brown, Christina Milian, Kanye West’s ex Amber Rose, The Game, and Jamie Foxx

Kendall, 18, went for a sporty look in leggings, a baseball jersey, and a snapback hat, but her younger sister Kylie, 16, stayed glam even on the field in thigh-high black stiletto boots. 

The Jenner girls were on the same team as Hilton, 33, and at one point, Kendall and Paris were standing side-by-side laughing together in the same pose. 

Back in 2008, the heiress famously mocked the now famed backside of her pal Kardashian in a radio interview, comparing it to “cottage cheese inside a big trash bag.” 

Though she issued a formal apology, the pair haven’t been seen together since. Kardashian was once Hilton’s assistant during her time on The Simple Life, and their mothers, Kris Jenner and Kathy Hilton remain close friends.