Kim Kardashian is exposing family secrets, including that she has a secret group chat solely used to talk about her sister Kourtney Kardashian.

The Season 4 premiere of The Kardashians, which began streaming on Hulu on Sept. 28, revealed that Kourtney and Kim are still feuding over last season's Dolce drama.

This season began by Kim calling to invite Kourtney to dinner in Milan for the launch of another Dolce collaboration. However, Kourtney wasn't interested in going and the sisters began to argue.

At one point, Kim claimed that "all" of Kourtney's friends often call her and the rest of the Kardashians to "complain" about her behavior. Kim also revealed the family has a secret group chat about Kourtney labeled "NOT KOURTNEY," where they talk about her behind her back with her friends to try to "figure out why you're such a different person and [why] you have this vendetta out."

READ MORE: Kourtney Kardashian's Baby's Life Saved During Fetal Surgery

Kim claimed the people in Kourtney's life are just "concerned" about her as they believe she isn't truly happy, an accusation Kourtney quickly shot back at.

"I have a happy life and the happiness comes when I get the f--k away from you guys. Specifically, you. Who the f--k has time? Maybe you guys need to think about if you're not happy. Get a f--king life. I don't have side chats about anyone," Kourtney snapped back at Kim.

The conversation spiraled from there when Kim claimed Kourtney's own children come to her about their issues with their mom.

"Like, it's you and my friends and my kids and everyone against me. It's like you're just a f--king witch and I hate you," Kourtney exclaimed.

The call ended there, but since the episode has aired, people have taken to social media to share their reactions and to weigh in on the fight between Kourtney and Kim, specifically the group chat revelation.

See viewer reactions, below:

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