The Kardashian Jenner sisters have done something dirty to Blac Chyna.

This comes amid the family's spat with the 33-year-old media personality, who sued Kris and Kylie Jenner, Kim and Khloe Kardashian, and others for $100 million in lost profits.

Blac Chyna, who was engaged to Rob Kardashian and has a 5-year-old daughter Dream with him, is suing the Kardashians for defamation and contract interference after alleging that the momager and the sisters got her show "Rob and Chyna" canceled after only one season.

It has now been revealed that the Kardashians filed a trademark for Dream Kardashian's name in February 2019, just a few months after the model sued them in 2017.

The registered agent for the trademark is "Kardashian Incorporated," and the lawyer on file is the same as for the other Kar-Jenner grandchildren.

Toys, dolls, and accessories, playsets for action figures, party games, puzzles, educational toys such as those for developing cognitive skills and fine motor skills, musical toys, toy food and cookware, toy cameras, gyms, playground balls, sports balls, and other items are among the services and goods trademarked under Dream, according to The Sun.

The trademark does not include Chyna, whose real name is Angela White.

Rob, 35, recently revealed on social media that he is now the primary caregiver for their daughter after his child's mother complained about not receiving child support from him.

But the sock designer retorted that he provides Chyna $37,000 each year for her education and covers all of her medical expenditures and extracurricular activities.

"My daughter is with me on Tuesdays and Saturdays." Why would I have to pay child support? Lol."

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NSFW Video by Blac Chyna

Kardashian Jenner fans couldn't believe the NSFW video Blac Chyna posted on social media in the midst of her legal battle with the Kardashians.

The 33-year-old recently startled viewers by posting a violent video marketing an adult item on her profile, then on Sunday she posted a staged video of a couple reclining on a couch on Instagram.

The man then moved in to kiss his partner as she pulled his face away and switched on the television.

The man then stood up, proceeded to the restroom, grabbed a bottle of lotion, and began to suggest he was discreetly rubbing himself.

"The #Rosetoy for guys," Chyna captioned the video. Get your throat monster and have some fun today. Ladies, we have goods for you as well."

However, she began to face opposition, with some stating, "This is too much."

"She's gotta resort to this silly s-t after her falling out with the Kardashians or what?" remarked another. So much stuff is taken from Instagram, yet this is permitted?"

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Tags: The Kardashians blac chyna