Kourtney Kardashian Throws Water Bottle at Kim as Both Sisters Get into a Physical Fight

Kourtney Kardashian gets into it with sister Kim Kardashian in the latest episode of "Keeping Up With the Kardashians." Words — and a bottle — were thrown.

Last week, the YouTube channel for E!'s "Keeping Up with the Kardashians" aired a dramatic preview for the upcoming episode. In it, the two eldest Kardashian sisters fought.

It all began when Kim, 39, spoke to sister Kendall Jenner, 24, about not joining their mother and momager Kris Jenner in Paris for an event. The clip is found below.

Kim's words rile up her sisters

Kim noted that Kendall was unable to do so because of her anxiety attacks. However, the tall model sitting on the bed still got upset with her big sister for what she had said.

Khloe, 35, and Kourtney, 40, sat on another bed behind the two. The conversation soon switched to addressing a slip of the tongue Kim had made in talking to Kendall.

Kim began to say it was her and Kourtney, then corrected herself to say that it's her and Khloe who would do anything to join their mother. Khloe's expression here is priceless.

Kourtney takes offense at Kim

Meanwhile, Kourtney took offense at Kim, hinting that she doesn't do enough work. At that point, Kourtney exploded on her sister in an expletive-ridden outburst.

She said, "You have this narrative in your mind. I will literally [expletive] you up if you mention it again. Literally, shut the [expletive] up." Kim then laughed, upsetting Kourtney even more.

Kourtney & Kim get into physical fight

She added: "But also if I didn't want to work my [expletive] off and I wanted to be a stay-at-home mom, that's [expletive] fine, you [expletive] literal [expletive]."

With that, Kourtney sent a blue water bottle onto Kim. The preview promptly ends there, but fans can refer to the season trailer to see how Kim reacted.

Kourtney wants a break from the show

In addition to being a reality star, Kourtney is the creator of Poosh, a skincare line. The mother-of-three has expressed a desire to take a break from appearing on the show in the past.

Speaking to Health magazine, Kourtney said it's more about freeing up her schedule to "put energy into things that are fulfilling and enjoyable." She also wants to spend more time with her kids.

Kourtney recalls playing with Kim

Kourtney talked about another passion of hers earlier this month when she did an interview for Rosie Huntington-Whiteley's website, Rose Inc. At the time, she spoke about her beauty line.

The reality star recalled how she and Kim "would always play in [their] mom's bathroom." The image painted comes in stark contrast to how the sisters interact today.

Kourtney is beloved for being unique among her siblings to embrace her body without photoshop or edits. She proudly explained that she loves being nude, "tiger stripes and all."

Kim & Kourtney mocked over latex outfits

Sometimes, though, Kim and Kourtney are put in the same box for their fashion choices. Earlier this month, the pair both came under harsh critic during Paris fashion week.

For the event, they both wore latex outfits from French designer, Olivier Rousteing, in different styles. They each wore variations of chocolate and caramel outfits.

Online, people mocked the pieces, with Kim getting a bit more hate for her selections. Unbothered, the sisters went on with the show despite the backlash. They're more upset by insults from within the family.