"Rack City" rapper Tyga is being sued by fourth woman over his sexually charged, explicit video, for alleged sexual assault by a person in a yellow rabbit costume.

Allison Brown, who appeared in "Make It Nasty," filed the lawsuit against Tyga and his label Young Money Entertainment for sexual battery, as well as fraud, invasion of privacy, and infliction of emotional distress.

Brown was asked to appear in Tyga's music video as one of the vixens, and was invited to a Hollywood Hills mansion for the visual shoot. She claimed that when she arrived to the set, the producers gave her alcohol; she was underage at 20.

As the production started, the video model eventually was forced to take her top off, dance topless, exposing her breasts, which she was assured that her breasts would be censored in the final cut for "Make It Nasty."

In addition, Brown claimed that a person in a rabbit suit grabbed her from behind and began to grind on her, mimicking sexual acts. When she tried to leave, another man reportedly grabbed her breast.

The legal action been taken against the Young Money rapper previously by three other women involved in "Make It Nasty" in a similar situation: the lawsuits over the music video were over the promise of a non-nude video, which was clearly betrayed by Tyga and his label without permission from the actresses involved.

Is the video even worth all this trouble? Tyga remains in a huge mess with a $20 million lawsuit.