Kourtney and Kim Kardashian seem to be at war once again in the explosive new series of The Kardashians.
In a trailer for the upcoming season, which will be released on May 25, Kourtney lashes out at her sister as she accuses the SKIMS founder of using her her wedding to Travis Barker as a "business opportunity".
Kourtney and Travis tied the knot last year in the beautiful coastal village of Portofino, Italy, with their wedding sponsored by Dolce & Gabbana.
Just months later however, Kim was unveiled as the face of the fashion brand's Spring/Summer 2023 ad campaign.
"People think it's a misunderstanding, it's not. It's who she is to her core," Kourtney said in the trailer as she went on a scathing rant about Kim.
It's safe to say the new Hulu series will be full of drama, but it's not the first time the famous sisters have been caught up in an apparent feud.
Here, we take a look back at some of Kourtney and Kim's biggest rows.
Kim's diamond earring devastation
Kim was devastated back in 2011 when her expensive diamond earring was lost in the ocean, but Kourtney was far from sympathetic.
The famous family were enjoying a trip to Bora Bora, but disaster struck for Kim when she lost the $75,000 (£60,000) piece of jewellery and she was left in tears.
Kim was thrown into the water by her husband-at-the-time Kris Humphries and her earring came lose after landing in the ocean.
She screamed: "My earring's gone! F**k, oh my God I'm gonna cry. My diamond earring," before adding: "We're not going to find it in the ocean."
While Kim managed to gain sympathy from her momager Kris Jenner, sister Kourtney was less than impressed.
Appearing from one of the family's huts to see what all of the commotion was about, she scolded: "Kim, there's people that are dying."
Cruel appearance jibe
Things got nasty during a 2018 fight between Kim and Kourtney, as the family tried to organise their annual Christmas cars photoshoot.
While Kim tried to schedule a date, Kourtney said she was unavailable and refused to adjust her schedule to accommodate for Kim's business meetings.
"I'm leaving at 4pm and I don't care what anyone says," Kourtney insisted.
Kim explained to their mother: "That was when my meeting was."
As Kourtney suggested Kim should change her meeting to 7am, Kim became increasingly annoyed and shouted: "Get the f**k out of here and go.
"No one wants you in the f***ing shoot. I'm planning this, so we don't want you in the shoot."
Kourtney hit back and said she didn't care about the shoot.
Eventually, Kim had enough and shouted: "Maybe if you had a f**king business that you were passionate about then you would know what it takes to run a f**king business, but you don't. So don't even act like you know what I'm talking about."
When Kourtney walked away, Kim declared: "She's the least exciting to look at, so she can be out. She doesn't do s**t."
Style thief
During a 2019 episode of Keeping Up With The Kardashians, Kim accused Kourtney of stealing her style.
The Poosh founder was joined by sister Khloe Kardashian as she tried on outfits for her birthday party.
As Kourtney styled a sparkly pink minidress, Khloe suggested they call Kim for her opinion, but Kourtney said she didn't trust her sisters judgement.
While on the video call, Kim said: "Well, if you don't care, why do you keep picking out all the same clothes?"
Kourtney hit back: "I don't know what you're talking about. I've never dressed like you."
Kim further lashed out at her sister for reaching out to Thierry Mugler, despite the SKIMS founder having a special relationship with the designer.
Kourtney later branded the argument "ridiculous".
"Kim and I have completely different styles, so even if we wear the same designer, we wear it in a completely different way.
"The store may send me clothes that are more Kim's style, and I send them back."
Things get physical
Kim and Kourtney's most notorious fight came in 2020, when Kim accused Kourtney of not showing up enough for the family business.
Kim claimed their mother Kris was always "crying and begging" her and Khloe to show up to events because she knew the other family members had different priorities.
However, Kourtney took offence to the comments and insisted she does work hard.
"You have this narrative in your mind," she slammed. "I will literally f**k you up if you mention it again."
Kourtney then angrily threw a bottle of water at Kim, prompting the mother-of-four to jump to her feet and start a physical fight.
Kourtney was left in tears after her sister punched her.
Khloe was forced to break the fight up, before Kim accused Kourtney of scratching her and proceeded to slap her sister.
Kim later spoke about the moment on The Tonight Show Starring Jimmy Fallon, saying: "I don't ever normally resort to violence like that, but she scratched me so hard.
"When I looked down at my arm and I saw she'd really scratched me and I felt it all on my back, I just went over and slapped her back. It's not my proudest moment."
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