Last week's Keeping Up With The Kardashians saw the sisters get into a dramatic physical fight after initially falling out over clothes.
Kendall called Kourtney as the sisters fought, with Kim, Khloé and Kris listening in. "Kendall! Shut up!" Kylie could be heard screaming. "No one promised to take you home! Why would I drive you over the hill?!"
As the girls continued to scream and audibly hit each other while Kris' boyfriend, Corey, told them to stop, Kim made an emergency call to her security detail asking them to go and get Kendall.
Then Kendall could be heard shouting: "You put your heel into my fucking neck!" and Kylie replied: "That's because you fucking slapped me!"
Kendall also claimed that Corey had told her to get into another car and said, "Fuck you" when she'd refused.
"I will never speak to Kylie ever again," Kendall told Kim, Khloé, Kourtney and Kris when she finally made it to their car. "She smacked me, so I came back at her and smacked her in the face, and then she took her heel and put it to my neck. So I started kicking her back."
"I'm sure Kendall is saying many things to my family," Kylie said during a confessional. "We're both very upset and I think that there was a lot of miscommunication because she thought I was gonna take her all the way through Beverly Hills to home and I just never agreed to that."
The episode ended with Kendall announcing to her family that she was unsure she could ever "forget" about or move on from the fight.
Well, thanks to last night's KUWTK, we now know all the details of the fight's aftermath, and things got even more messy.
First, the Kardashian sisters sat down to discuss the argument, with Khloé highlighting that there'd been "tension" between Kendall and Kylie all day.
Khloé went on to reference Corey's involvement in the argument, suggesting it'd be much harder for him to move on since he wasn't related.
"It sucks for everybody," Khloé said. "And sisters can get over it. I don't know if you're not a sister, how easy it is to get over. The whole night sucks. But we don't know in that time [before Kendall's call] what happened [between her and Kylie.]"
"But obviously [Kendall] wouldn't react like that [if nothing had happened,]" Kim responded. "They had a sister fight. Corey happened to be there. He's now in the middle of it. It's just super annoying."
"And Kendall has this anxiety that she really struggles with," Kim added. "Just even her shaking and being so upset, it just sets it off. I don't think she's had that kind of adrenaline since she's been an adult. And that's tough."
Later in the episode, Corey attempted to extend an olive branch to Kendall in the form of NBA tickets, but the conversation swiftly descended into another argument between the pair after he refused to apologise.
"I feel like you were the adult in this situation, and you handled it very badly," Kendall told Corey over the phone.
"Let me tell you one thing," Corey shot back. "Kendall, you've been a rude person for years, man. You're an asshole when you feel like it. You get riled up for no reason."
"What did you call me now?" Kendall replied, to which Corey told her: "No, no, no, no, I'm about to tell you the truth about how you are. You don't apologise for nothing. You get into one thing, now you got something to run and harp on."
"Listen!" Kendall shouted. "You're a fucking bystander and you were letting this whole thing happen. You were trying to get me a car to get in — I already know what you were trying to do."
"He's just not right in this situation and I'd rather him just admit and say sorry and man up," Kendall said in her confessional. "But if that doesn't happen we're just going to continue going in circles."
"Of course Corey is going to try and deflect from saying 'fuck you' to me by putting it all on me and Kylie," she added. "He doesn't want to be on bad terms with my mom."
We also saw Kylie telling Kris that both she and Kendall were refusing to back down on their position and each believed the other was in the wrong.
"I think that she thinks she's right in the situation and I think I'm right in the situation," Kylie said, adding that she'd been in "happy, party mode" that evening and would have "loved" to have found Kendall another car to take her home.
And, towards the end of the episode, Kendall opened up to Khloé about the fight, telling her that she hadn't heard from Kylie in over a week and that it felt like a "slap in the face".
"There's been multiple times in the past couple days that I've thought about calling her and just being the bigger person," she said. "But I kind of want her to grow up and realise that what happened was wrong, and that I do deserve that phone call."
"I have a big ego too, but it's not to the level where I wouldn't be able to put it aside to do what was right in the situation," she added.
And the whole thing ended with Khloé expressing her concern that Kendall and Kylie hadn't yet made up.
"This is pretty major for Kendall and Kylie," she said during a confessional. "I haven't seen them fight like this in years. I just hope this is going to get resolved soon, but they both seem really adamant about their stances right now."