Last week, we showed you a Keeping Up With The Kardashians sneak peek in which Khloe snapped at Kourtney after very little taunting.
On Sunday night's episode, we saw that this squabble was just the tip of the iceberg.
The sisters were practically at each other's throats during their "soul-searching" family vacation to Bali.
On the episode airing April 21, the broiling tensions between Khloe and Kourtney began before they even arrived.
The flight to Indonesia lasted for 18 hours, during which Khloe felt a little overwhelmed -- or whelmed at least.
This was a long, long flight to take with baby True.
And while Mason and Penelope are growing older faster than fans can believe, there was an entire litter of Kardashian children to wrangle.
While Khloe was growing increasingly frustrated, Kourtney was living her best life -- by sleeping for 15 of those 18 hours.
After emerging from her glorious beauty sleep, Kourtney was aghast to find that her luggage was all wrong.
... By which we mean that her bags contained the wrong kind of lip gloss and lip liner.
"I need to have a talk with my assistant when I get back," Kourtney vowed ominously.
This from the woman who famously advised Kim to stop crying about her diamond earrings because "there's people that are dying."
Khloe mentioned that she had packed her own bags, but Kourt was less than interesting.
"I don’t wanna do that stuff myself," she told her younger sister.
Later, during the scene that we showed you on Friday, Kourtney then baited Khloe by bringing up her fondness for compalining.
After talking about how everyone needed to take a spiritual and mental inventory, Kourtney noted that Khloe was "complaining too much."
Khloe did not enjoy that at all.
Tensions rose further after Khloe lamented that she was overwhelmed because family business obligations kept her from spending time with Tristan.
(Lol, remember when she and Tristan were together?)
Kourtney was pretty dismissive, saying that Khloe could always opt out.
"You’re an adult woman with a child," she counseled Khloe. "You can say no."
Honestly, that sounded like pretty good advice to us, but Khloe didn't take it that way.
(Or, at least, editing made it look like Khloe was further rankled by Kourt's suggestion)
Sitting in front of the confessional camera, Khloe went off -- violently.
"Her comments make me want to slap her in the f--king mouth," Khloe expressed.
Khloe then went crying to Momager Kris
She griped that Kourtney was always "on her phone."
"She’s not present," Khloe accused. "She’s so f--king selfish."
Now, Khloe and Kourtney eventually reached an agreement to be more considerate of each other's feelings.
Speaking of Kourt making peace ... there's Scott.
Honestly, his biggest role in the episode was being a loving, doting father.
He and Kourtney even posed for a family photo that Khloe joked would make the cover of "co-parenting magazine."
Clearly, the cameras and editing were in favor of helping Scott continue to rehabilitate his image.
We know that we come across as a little Team Kourtney here.
It's difficult to not admire someone sleeping for 15 hours. That's beyond BDE. That's Big Sleep Energy and we're here for it.
Clearly, she was deliberately antagonizing Khloe.
Whether this was a ploy for the show or an immature sibling squabble (or maybe they can't tell the difference anymore), we can't say.
It looks like Kourt's story in next week's episode is going to take a much more personal tone.
She and Scott have a lot of emotional baggage to sort out.