Guo now faces a $20 million suit.

Chinese billionaire Guo Wengui has been accused of treating his PA as a “sex slave”.

The New York Post reports that the New York-based real estate tycoon allegedly raped Rui Ma at his homes in Manhattan and London. Guo now faces a $20 million suit filed against him by Rui on Monday.

Also known as Miles Kwok, Guo had fled China in 2015 following a fraud conviction.

Rui was summoned by Guo from his Hong Kong real estate offices to New York, where the allegations took place.

Taking her passport, Guo told Rui that if she tried to return to China, “she would be arrested and thrown in prison, where she would be tortured.”

Court papers state that Rui “became [Guo’s] captive.”

Described as a “program of terror”, Guo forced Rui to “work until 2 a.m. or 4 a.m. seven days a week — depriving her of any real opportunity to sleep.”

The suit added that Guo also forced himself upon her in the cinema room of his $68 million penthouse at the Sherry-Netherland Hotel on Fifth Avenue.

After narrowly escaping rape one time, Rui woke up with Guo “on top of her and attempting to separate her legs,” the suits says. He “engaged in forced sexual intercourse with [Rui] without her consent. After this violence concluded [he] left [her] alone, bleeding in her bed.”

Guo also allegedly raped Rui in his London home after throwing her onto the floor, tearing her clothing and locking her in a room.

Rui begged him to stop, but he “coldly responded that [Rui] must stop shouting.”

Rui fled to the Chinese embassy earlier this year and filed a criminal complaint in China. Her New York attorney Lisa C. Solbakken told The Post that the “defendant’s decision to flee China and take up residence in the United States is one that insulates him from answering for his inhumane and egregious conduct.”

“Our courts are entitlted to hold him accountable for his wrongs,” she said.