Kourtney Kardashian reportedly took aim at Scott Disick's new romance with Sofia Richie during the latest episode of Keeping up with the Kardashians and now, Richie is allegedly fighting back.

After Kardashian, 38, referred to Disick’s latest love interests as “hookers,” an insider has spoken out about Richie's feelings toward her new man's ex-girlfriend, revealing that she is highly upset about the on-screen comment.

“Sofia was actually really upset about Kourtney’s hooker comments and she took it very personal,” a source close to Richie told Radar Online on October 12. “She thinks that Kourtney is just a jealous and bitter old hag and that she needs to shut the f**k up!”

Also during the episode, Kardashian said that Disick wouldn't let her do her own thing with boxer turned model Younes Bendjima, 23, who she's reportedly been dating since last year. However, according to the source, Richie is convinced that is far from the truth.

“Kourtney is full of s**t that Scott won’t let her have her own life because she is that keeps inserting herself back into his life,” the source claimed. “She is also calling him an alcoholic, and that is totally hypocritical considering that she is constantly boasting about her drinking and even talked about falling asleep so wasted that she threw up on herself on social media.”

“Scott is falling in love with Sofia and she is falling for him and Sofia just wants Kourtney to leave them both alone,” the insider added.

To see more of Kourtney Kardashian and her family, tune into new episodes of Keeping Up With the Kardashians season 14 on Sunday nights at 9 p.m. on the E! Network.

Tags: Keeping Up With The Kardashians E! Reality TV sofia richie scott disick kourtney kardashian