It's about to be very much on between Kim Kardashian and Kourtney Kardashian on the new season of their family's hit reality show.
We've already documented one fight the sisters will apparently get in on an upcoming episode -- and now we're here with footage from an even more explosive throwdown.
In a clip from this Sunday's all-new Keeping Up With the Kardashians, Kim and Kourtney both share their sides of the story following their latest argument.
As was previously teased (see link above), Kim thinks her older sister has been stealing her style and isn't exactly happy about it.
Unfortunately, this feud comes at a very bad time because the loved ones are en route to an event honoring the late Robert Kardashian.
"Kim and I just got into the biggest fight. She was just going so crazy. She's sending me the meanest text messages, you would die," Kourtney first tells friend Sarah Howard over the phone, adding:
"She's like, 'You're the biggest ungrateful bitch.' So, then I said, 'God! You're such a petty woman.'"
According to Kourtney, Kim alleges that the 40-year-old's stylist "pulled the nastiest clothes" for the latter's birthday party.
In an attempt to ease the tension between her relatives, Khloe Kardashian makes a joke about the ongoing spat... and it doesn't accomplish her goal.
As for the former Ray J sex tape star?
She vents to Kris Jenner about the fight with Kourtney, saying to her mother in the footage featured here:
"Basically, I got into the biggest fight with Kourtney today because she just is such a bitch. Like, on another level. So, I called Kourtney and Kourtney like screamed at me on the phone."
"Screamed at you?" Jenner replied in total shock, almost as if this entire conversation had not been scripted ahead of time.
Meanwhile, back in Kourtney and Khloe's car, the Poosh.com founder explains how she told Kim to sort out her priorities.
"I said, 'You're going to school to become a lawyer and help the world and these are the kinds of problems you have?'" Kourntey recounts.
"And she's like, 'You're really a miserable human being and you keep not understanding the issue because you, all of a sudden, turn into such a humanitarian and talk about the world's issues -- which you've not contributed one ounce to the world.'"
(Editor's note: It really is true. Kim has claimed she wants to go to law school in order to continue pushing for nationwide prison reform.)
You may wanna shield your children's eyes before reading it.
"You f--kin' fake humanitarian hoe. I actually do s--t for the world and you f--king fake it all day long," she yells.
"And act like, 'Oh! There's people dying, Kim.' And what the f--k are you doing about it? So, shut the f--k up."
Keeping Up with the Kardashians returns with a new episode on Sunday, September 15 at 9/8c.