Kourtney Kardashian breaks down over 'evil human being' Kim in 'KUWTK' screaming match (Exclusive)

Kim and Kourtney Kardashian's feud wages on. 

The sisters seemingly haven't been able to see eye to eye in dramatic promos for season 15 of Keeping Up With the Kardashians, and in an exclusive new clip, things get even more heated. 

After Kourtney held her ground on picking a time to shoot their family Christmas card, Kim called her "the least exciting to look at" -- pushing her older sister to the breaking point. Kourtney breaks down in an emotional phone call to Khloe, who just so happens to be sitting with Kim and their mom, Kris Jenner. 

"I'm not here to be mistreated by my f**king b**ch family," she cries. "Kim saying that I'm the least interesting to look at -- who even speaks like that?" 

"You guys just have really different values than me. I choose to be a mother to my three kids. I am not here looking for another job. I already work enough, more than I would like to," Kourtney continues, as Kim gets out of her chair. 

"You don't do f**king sh*t!" Kim yells, causing Khloe to get up and walk away, with Kim following her. 

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Kim Kardashian out and about in 2018
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Kim Kardashian out and about in 2018
INGLEWOOD, CA - JULY 29: Kim Kardashian West attends the first annual 'If Only' Texas hold'em charity poker tournament benefiting City of Hope at The Forum on July 29, 2018 in Inglewood, California. (Photo by Rich Fury/Getty Images)
INGLEWOOD, CA - JULY 29: Kris Jenner (L) and Kim Kardashian West attend the first annual 'If Only' Texas hold'em charity poker tournament benefiting City of Hope at The Forum on July 29, 2018 in Inglewood, California. (Photo by Rich Fury/Getty Images)
LOS ANGELES, CA - JULY 15: Kim Kardashian West attends the Beautycon Festival LA 2018 at the Los Angeles Convention Center on July 15, 2018 in Los Angeles, California. (Photo by David Livingston/Getty Images)
LOS ANGELES, CA - JULY 06: Kim Kardashian is seen leaving Nobu on July 06, 2018 in Los Angeles, California. (Photo by PG/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JUNE 30: Kim Kardashian West attends KKW Beauty Fan Event at KKW Beauty on June 30, 2018 in Los Angeles, California. (Photo by Stefanie Keenan/Getty Images for ABA)
LOS ANGELES, CA - JUNE 30: Kim Kardashian West (L) and Kris Jenner attend KKW Beauty Fan Event at KKW Beauty on June 30, 2018 in Los Angeles, California. (Photo by Stefanie Keenan/Getty Images for ABA)
UNIVERSAL CITY, CA - JUNE 21: Kim Kardashian , Kanye West and La La Anthony attend Teyana Taylor Album release Party at Universal Studios Hollywood on June 21, 2018 in Universal City, California. (Photo by Prince Williams/Getty Images)
PARIS, FRANCE - JUNE 21: Kim Kardashian attends the Louis Vuitton Menswear Spring/Summer 2019 show as part of Paris Fashion Week on June 21, 2018 in Paris, France. (Photo by Bertrand Rindoff Petroff/Getty Images)
PARIS, FRANCE - JUNE 21: Kanye West and Kim Kardashian attend the Louis Vuitton Menswear Spring/Summer 2019 show as part of Paris Fashion Week on June 21, 2018 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)
LOS ANGELES, CA - MARCH 06: Kim Kardashian West speaks onstage at MDNA SKIN hosts Madonna and Kim Kardashian West for a beauty conversation at YouTube Space LA on March 6, 2018 in Los Angeles, California. (Photo by Kevin Mazur/Getty Images for Madonna's MDNA SKIN)
LOS ANGELES, CA - MARCH 06: Kim Kardashian west and Madonna backstage at MDNA SKIN hosts Madonna and Kim Kardashian West for a beauty conversation at YouTube Space LA on March 6, 2018 in Los Angeles, California. (Photo by Kevin Mazur/Getty Images for Madonna's MDNA SKIN)
CENTURY CITY, CA - JUNE 18: Kim Kardashian West attends the BoF West Summit at Westfield Century City on June 18, 2018 in Century City, California. (Photo by Christopher Polk/Getty Images for The Business of Fashion)
CENTURY CITY, CA - JUNE 18: Kris Jenner (L) and Kim Kardashian West attend the BoF West Summit at Westfield Century City on June 18, 2018 in Century City, California. (Photo by Christopher Polk/Getty Images for The Business of Fashion)
SANTA MONICA, CA - JUNE 16: TV personality Kim Kardashian, winner of the Best Reality Series/Franchise award for 'Keeping Up with the Kardashians', walks off stage during the 2018 MTV Movie And TV Awards at Barker Hangar on June 16, 2018 in Santa Monica, California. (Photo by Chris Polk/VMN18/Getty Images for MTV)
SANTA MONICA, CA - JUNE 16: TV personalities Kim Kardashian (L) and Kris Jenner attend the 2018 MTV Movie And TV Awards at Barker Hangar on June 16, 2018 in Santa Monica, California. (Photo by Jon Kopaloff/FilmMagic)
SANTA MONICA, CA - JUNE 16: KIm Kardashian arrives at the 2018 MTV Movie And TV Awards at Barker Hangar on June 16, 2018 in Santa Monica, California. (Photo by Steve Granitz/WireImage)
NEW YORK, NY - JUNE 15: Kanye West, Kim Kardashian and daughter North West seen out and about in Manhattan on June 15, 2018 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - JUNE 15: Kim Kardashian and Kanye West seen out and about in Manhattan on June 15, 2018 in New York City. (Photo by Robert Kamau/GC Images)
NEW YORK, NY - JUNE 14: (L-R) Kim Kardashian West, La La Anthony, and Jonathan Cheban attend the Nas 'Nasir' Album Listening Session on June 14, 2018 in New York City. (Photo by Johnny Nunez/WireImage)
NEW YORK, NY - JUNE 14: North West and Kim Kardashian seen on the streets of Manhattan on June 14, 2018 in New York City. (Photo by James Devaney/GC Images)
TODAY -- Pictured: Kim Kardashian West and Alice Johnson on Wednesday June 13, 2018 -- (Photo by: Nathan Congleton/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - JUNE 04: Kim Kardashian West attends the 2018 CFDA Fashion Awards at Brooklyn Museum on June 4, 2018 in New York City. (Photo by Dimitrios Kambouris/Getty Images)
NEW YORK, NY - JUNE 04: Kim Kardashian West attends the 2018 CFDA Fashion Awards at Brooklyn Museum on June 4, 2018 in New York City. (Photo by Kevin Mazur/WireImage)
TV personality Kim Kardashian is seen entering the grounds of the White House on May 30, 2018 in Washington, DC. (Photo by Mandel Ngan / AFP) (Photo credit should read MANDEL NGAN/AFP/Getty Images)
NEW YORK, NY - MAY 09: Kim Kardashian is seen walking in Soho on May 9, 2018 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - MAY 08: Kim Kardashian is seen in Chinatown on May 8, 2018 in New York City. (Photo by TheStewartofNY/GC Images)
NEW YORK, NY - MAY 08: (L-R) Talent Manager, Jenner Communications, Kris Jenner, Model Kendall Jenner, Founder, Kylie Cosmetics Kylie Jenner, and Founder and CEO, KKW Kim Kardashian attends an intimate dinner hosted by The Business of Fashion to celebrate its latest special print edition 'The Age of Influence' at Peachy's/Chinese Tuxedo on May 8, 2018 in New York City. (Photo by Dimitrios Kambouris/Getty Images for The Business of Fashion)
NEW YORK, NY - MAY 09: Kim Kardashian is seen walking in Soho on May 9, 2018 in New York City. (Photo by Raymond Hall/GC Images)
NEW YORK, NY - MAY 07: Kim Kardashian West attends the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Kevin Tachman/Getty Images for Vogue)
NEW YORK, NY - MAY 07: Kim Kardashian attends the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala at The Metropolitan Museum of Art on May 7, 2018 in New York City. (Photo by Jason Kempin/Getty Images)
NEW YORK, NY - MAY 07: Kim Kardashian West is seen arriving to the Heavenly Bodies: Fashion & The Catholic Imagination Costume Institute Gala on May 7, 2018 in New York City. (Photo by Gilbert Carrasquillo/GC Images)
NEW YORK, NY - MAY 07: TV Personality Kim Kardashian attends as The Mark Hotel celebrates the 2018 Met Gala at The Mark Hotel on May 7, 2018 in New York City. (Photo by Andrew Toth/Getty Images for The Mark Hotel)
BEVERLY HILLS, CA - MARCH 31: Kim Kardashian West attends KKWxMario Dinner at Jean-Georges Beverly Hills on March 31, 2018 in Beverly Hills, California. (Photo by Stefanie Keenan/WireImage)
WASHINGTON DC, UNITED STATES - 2018/03/24: Kim Kardashian and Husband Kanye West along with Daughter North West, show up to support March For Our Lives. Tens of thousands of Americans took to the street on Washington DC during the 'March for our Lives' demonstration against gun violence in schools in the United States. (Photo by Emilee McGovern/SOPA Images/LightRocket via Getty Images)
WASHINGTON, DC - MARCH 24: Kanye West and Kim Kardashian West attend March For Our Lives on March 24, 2018 in Washington, DC. (Photo by Paul Morigi/Getty Images for March For Our Lives)
WEST HOLLYWOOD, CA - MARCH 13: Kim Kardashian West attends Lorraine Schwartz launches The Eye Bangle a new addition to her signature Against Evil Eye Collection at Delilah on March 13, 2018 in West Hollywood, California. (Photo by Stefanie Keenan/Getty Images for Lorraine Schwartz )
WEST HOLLYWOOD, CA - MARCH 13: Kim Kardashian West attends Lorraine Schwartz launches The Eye Bangle a new addition to her signature Against Evil Eye Collection at Delilah on March 13, 2018 in West Hollywood, California. (Photo by Stefanie Keenan/Getty Images for Lorraine Schwartz )
CHATSWORTH, CA - MARCH 09: Kim Kardashian watches courtside as Sierra Canyon plays Foothills Christian for the CIF Open Division Playoffs at Sierra Canyon High School on March 9, 2018 in Chatsworth, California. (Photo by Cassy Athena/Getty Images)
HOLLYWOOD, CA - MARCH 05: Kim Kardashian attends the release of Marina Acton's new single 'Fantasize' at Boulevard3 on March 5, 2018 in Hollywood, California. (Photo by Jerritt Clark/Getty Images)
HOLLYWOOD, CA - MARCH 05: Marina Acton and Kim Kardashian take a selfie at the release of Marina Acton's new single 'Fantasize' at Boulevard3 on March 5, 2018 in Hollywood, California. (Photo by Jerritt Clark/Getty Images)
TOKYO, JAPAN - MARCH 02: Kim Kardashian, Kourtney Kardashian and Khloe Kardashian are seen upon arrival at Tokyo Station on March 2, 2018 in Tokyo, Japan. (Photo by Jun Sato/GC Images)
TOKYO, JAPAN - FEBRUARY 26: Kim Kardashian is seen upon arrival at Haneda Airport on February 26, 2018 in Tokyo, Japan. (Photo by Jun Sato/GC Images)
LOS ANGELES, CA - FEBRUARY 25: Kim Kardashian is seen on February 24, 2018 in Los Angeles, California. (Photo by Hollywood To You/Star Max/GC Images)
LOS ANGELES, CA - FEBRUARY 24: Entrepreneur Kim Kardashian West at the Create & Cultivate Los Angeles conference in the Simon G. Jewelry Green Room on February 24, 2018 in Los Angeles, California. (Photo by Vivien Killilea/Getty Images for Create & Cultivate )
LOS ANGELES, CA - FEBRUARY 07: Kim Kardashian is seen on February 07, 2018 in Los Angeles, California. (Photo by BG002/Bauer-Griffin/GC Images)
LOS ANGELES, CA - FEBRUARY 07: Kim Kardashian is seen on February 07, 2018 in Los Angeles, California. (Photo by BG005/Bauer-Griffin/GC Images)
LOS ANGELES, CA - JANUARY 12: Kim Kardashian and Kanye West are seen on January 12, 2018 in Los Angeles, California. (Photo by BG022/Bauer-Griffin/GC Images)
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"You would honestly think that we have more jobs, so work around our schedule," Kim yells. "You do whatever the f**k you want to do and you don't do sh*t, so be accommodating to the people who actually do sh*t." 

That's when Kourtney takes it to the next level, calling Kim a "very distraught, evil human being." "I'm not going to live my life around people that make me not feel good on a daily basis," she says. 

"Well, clearly you're going through something else, because you're acting like a f**king lunatic. So maybe deal with that," Kim shouts back, forcing Khloe and Kris to take Kourtney's side. 

"Oh my god, Kimberly. That's not OK to say," Khloe interrupts. 

"What I said was rude and I wasn't even being serious. I said I'm sorry for that,  but you're the most entitled f**king person on the planet when you work the least," Kim continues.

But the fight isn't over! Watch below. 

Kim can definitely dish it, as she's clapped back in several celebrity feuds over the past few years, with stars like Piers Morgan, Bette Midler, Lamar Odom and Taylor Swift.

Keeping Up With the Kardashians airs Sundays at 9 p.m. ET/PT on E!

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