Kim Kardashian and Kourtney Kardashian came to blows in a huge way in the first episode of the new series of Keeping Up With The Kardashians.
In the program that aired on August 4, Kourtney, 39, and Kim, 37, came face to face after a programming conflict.
The fight came after the two brothers clashed at intervals for their annual Christmas card session.
Kanye West's wife felt that Kourtney should work on her agenda because she was full of work commitments.
"We all have our own priorities, mine is to be a mother"
However, Kourtney refused to give in, as he felt that Kim should better understand the fact that he wanted to be home early with his three children.
Then a fight broke out between the couple who saw Kourtney's sister, Khloe, 34, crying in tears, complaining about her "bitch family."
This caused Kim to respond and said that Kourtney was "the least interesting to look at" in the Kardashian breeding.
His war of words spread to Twitter when the EP aired on E!
In a tweet to Kourtney, who said: "It's hard to be the prettiest," Scott Disick's ex replied: "That's a fact," apparently implying that she was more attractive than her sister Kim.
Later she also tweeted saying: "We all have our own priorities, mine is to be a mother. #KUWTK"
Kim replied directly to Kourt's tweet and said: "And mine is not, the shooting was with our children! My number one priority is to be a mother too and I can also work, you can too!"
While some people sided with Kim, most of the viewers felt that Kourtney was right and that Kim's comments were misplaced.
As Kim is undeniably the queen of the Kardashians and hopes that people will adapt to their endless work commitments, she raises the question of how one of the brothers who is not in the spotlight should be like Kourtney?
Is there an unofficial Kardashian hierarchy? And should all the brothers take Kim's line while she made them famous?
Celebrity body language and behavior expert Judi James revealed her thoughts to Daily Star Online.
She said: "Most of the larger families have an unofficial hierarchical order in terms of qualities such as appearance, brain and talent, but there is often some kind of balance and support system to encourage all siblings to very individual successes. .
TWITTER / KOURTNEY KARDASHIAN
TWITTER / KIM KARDASHAN
"With a family like Kardashians, although the emphasis is so great on appearance and fame that to be considered the least interesting to look at and have some very public ways of measuring your popularity on social network pages and fan sites you must be overwhelming
"The challenge to their self-esteem, confidence and self-esteem levels could be incredibly difficult.
"The rivalry over looks and levels of fame is pretty common for celebrities when they're at work, but it's usually limited to rivalry on stage or on the screen.
"However, since the Kardashians are a family of reality, there may be few things that escape the much needed security, the increased trust and support of family members."
Will these two bury the ax? Only time will tell …