Kendall Jenner Gets Into Heated Altercation With Kylie: 'You're the Biggest F**king B**tch I've Ever Met'

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Damn, Kendall and Kylie Jenner are coming to blows!

On Sunday's season premiere of Keeping Up With the Kardashians, Kylie refuses to let her sister borrow one of her dresses to change into after the ESPYs Awards, leading to a heated exchange, where Kendall says, "You're just literally the biggest f**king bitch I've ever met."

"I'm sorry your mom is such a c**t," Kendall then mocks at Kylie's dogs.

WATCH: Kendall and Kylie Jenner Reveal the Best Beauty Tip Kim, Khloe and Kourtney Taught Them

During a confessional, Kendall admits that the fight might not really be about a dress.

"It's annoying because this night is already stressful as it is, I really want to show that we support our dad, so we don't need to be fighting over outfits," she says. "I mean maybe that's why we're fighting over something so stupid.... sisters."

WATCH: Kylie Jenner Has Panic Attack After Kendall Abandons Her on the Red Carpet

Arguments aside, though, the Jenner sisters are super close. In June, they did a joint interview with ET, where they talked about being inspired, style-wise, by their older Kardashian siblings.

“I think we get it a lot from our sisters,” Kendall revealed about her and Kylie's style inspiration. Growing up around them and they are pretty stylish... we learn from them."

WATCH: Kendall Jenner and Gigi Hadid Heat Up the Runway in Victoria's Secret Fashion Show Debuts

“I love Kim's style right now,” Kylie added. “…I feel like Kourtney has the best style overall.”

And speaking of style, watch Kendall slay on the Victoria's Secret runway below!