A former movie studio secretary has accused Arnold Schwarzenegger of sexually assaulting her in the late 1980s.

She alleges that the incident occurred on the Columbia Pictures lot where she worked.

She was accompanying her boss, also a woman, on a visit when the boss offered to introduce her to Schwarzenegger, who was in a production office.

She said he grabbed her right buttock and held on for about 20 seconds while telling her she had a “very nice ass” and that he would “love to work” her out.

“All I was really thinking was, ‘I’d like to go,’” she said.

“I was trying to figure out how to get his hand off my butt and his arm away from me without making a big deal of it.”

The woman said her boss was unaware of what had happened and they left soon after the incident.

“Oh, my gosh! I had no idea he would do that,” the boss reportedly said. The secretary replied, “Oh, well, no big deal.”

Schwarzenegger later called the secretary’s boss’s office and asked to speak with her.

“He figured out it was me and he said, ‘Oh, you still haven’t come to work out with me.’ ”

The secretary said she did not respond and simply put her boss on the line.

The woman, now 47, said she has told the story several times over the years but chose not to publicly identify herself or her former boss for fear of losing her current job in the entertainment industry.

“I fear retribution,” she said.

The incident has been corroborated by the woman’s friend, Michael Collins, a freelance writer and director of the Los Angeles Press Club, to whom she recounted the episode eight months ago.

Schwarzenegger’s spokesperson, Daniel Ketchell, said the actor and former governor had no comment on the allegations.

The allegation against Schwarzenegger follows a series of similar accusations against men in entertainment and politics, in the wake of the #MeToo movement.

Schwarzenegger was first accused of sexual harassment by several women during his campaign for governor in 2003, but he denied the allegations.

The actor was elected governor of California in a recall election in 2003 and served two terms, from 2003 to 2011.

In 2018, Schwarzenegger issued an apology for his behavior on movie sets. “Looking back, I stepped over the line several times, and I was the first one to say sorry,” he said.

Several other women have accused Schwarzenegger of inappropriate behavior over the years.

During filming of the 1991 movie “Terminator 2: Judgment Day,” one crew member alleged that Schwarzenegger harassed her on several occasions, groping her and trying to take off her robe.

Another woman who worked on the same movie said that Schwarzenegger called out to her, “Come here, you sexy devil,” before pulling her onto his lap and asking, “Have you ever had a man slide his tongue in your [ans]?”

Nancy Tafoya, who was also on the set of “Terminator 2,” said she saw Schwarzenegger push his body against a female crew member.

Schwarzenegger has largely remained out of the public eye since leaving office in 2011.