It looks like Rob Kardashian is not taking his sister Khloé Kardashian's advice to never go against the family (again) because the Arthur George designer is on Blac Chyna's side in her lawsuit against his mom Kris Jenner and older sister Kim. Chyna is currently suing the Kardashians for allegedly sabotaging her reality show Rob & Chyna — and Rob just wants it to go away at whatever cost.

"Rob’s at odds with Kim and Kris because Chyna’s convinced him they were out to ruin her name and sabotage her career from the jump," a source told In Touch exclusively. "He’s asked his mother and sisters to help Chyna get her own show on E! or pay her a fortune to drop her lawsuit." In court documents, Chyna claimed that famous family used "their phower and influence over the E! Network to kill the second season" completely ignoring the fact that she had split from Rob, making a show about the couple nearly impossible.

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While Rob doesn't have his family's back, the courts seemingly do. This week, TMZ reported that the judge assigned to the case is leaning toward throwing out the part of the suit where Chyna claims the Kardashians are responsible because the contract Chyna signed gave E! the right to cancel her show at any time for any reason. And Chyna can expect the famous family to keep fighting.

"They view her lawsuit as simply another attempt to get more money from the family," an insider told In Touch previously. However, Chyna is ready to play dirty to get what she wants. "She is planning to reveal everything she knows about the Kardashians," a source said. "Kris and Kim are terrified."

Rob and Chyna currently share 50/50 custody of their daughter Dream, with Rob paying Chyna $20,000 a month in child support. So, why is he helping out his ex-fiancée — whom he accused of cheating before their breakup? Well, it seems Chyna is sending some nudes to get on his good side. "Chyna's been sweet talking Rob and sending him nudes. He's falling for it big time and is preparing to drop major cash on her and Dream for Mother's Day," the source claimed. "Rob feels like he owes her this."