It's the battle of the siblings! Kim Kardashian has finally fought back against her brother Rob for calling her a "b***h" on social media. Kanye West's wife now wants her family to cut their ties with the estranged son of Kris Jenner.

Rob Kardashian recently slammed Kim K by comparing her to Rosamund Pike's lunatic role in "Gone Girl" and even referring to her sister as a "b***h!"

And now it seems that Kim has an answer to Rob's online diss based on the new teaser clip for the upcoming "Keeping Up With The Kardashians" episode.

According to Gossip Cop, the all-new episode will be filled with familiar tension, especially now that Kim K is furious over her brother's Instagram post.

In the teaser clip, Kim could be heard telling sister Khloe and momager Kris Jenner that she is already done with having to financially support Rob.

"Everyone licks Rob's a** and does whatever he says, and at some point you just have to give it up," North West's mom says in the clip. "We all make his life so easy...This is pathetic. We're not going to cater to him anymore, but it has to be all of us."

Kim continued to slam her brother by revealing that she had to chauffeur Rob around just to avoid the paparazzi and even purchase clothes for the estranged family member just so he wouldn't have reason to leave the house, according to Daily Mail.

"We all make his life so easy," Kim says in the teaser clip. "'Okay, we'll drive you around with a chauffeur so no one has to look at you!' We had a chef on standby, a trainer. 'We'll send people to run out and buy you socks and underwear!' Like, this is pathetic!"

Obviously, Kris does not like that her kids are fighting so she interjects that Rob needs family support as of the moment. However, Kim K slams her mother's words saying, "No, he's still competent to where he can ask for help if he needs it."

The sneak peek then shows Jenner telling Khloe that it's time for them to hire professionals who could help Rob, but Khloe thinks that this will make things worse since Rob may view this as an "ambush" intervention.

Watch the sneak peek below: