Adult film star Ron Jeremy has been charged with an additional 20 counts of sexual assault involving 13 women, including a teenager.
Jeremy, 67, was charged with raping three women and sexually assaulting another in June. The actor has been held in jail on $6.6 million (£4.9 million) bail since.
The Los Angeles County District Attorney's Office has now announced new charges, including six counts of sexual battery by restraint, five counts of rape and lewd conduct with a 15-year-old girl.
The new charges against Jeremy, whose full name is Ron Jeremy Hyatt, span a 16-year period and the alleged victims range from 15 to 54, prosecutors said.
The teenager was allegedly attacked at a house party in Santa Clarita, a city 33 miles north of Los Angeles, according to prosecutors.
The most recent incident occurred on January 1 this year, prosecutors alleged. Jeremy is said to have sexually assaulted a 21-year-old woman outside a business in Hollywood.
And six other alleged sexual assaults happened inside a West Hollywood bar Jeremy frequented and another in the bar's parking lot, prosecutors allege.
Jeremy, nicknamed "The Hedgehog", is one of the most high-profile figures in the porn industry and has appeared in more than 2,000 films since beginning his career in the 1970s.
If convicted as charged, Jeremy faces a possible maximum sentence of more than 250 years to life in state prison.
After the initial charges were filed in June, the Los Angeles County Sheriff's Department appealed for more alleged victims to come forward.
In June, Jeremy denied the allegations, tweeting: "I am innocent of all charges. I can't wait to prove my innocence in court! Thank you to everyone for all the support."
