Robert De Niro’s ex-assistant testified in Manhattan federal court Tuesday that the actor made her perform tasks more fit for a “girlfriend” or “wife” — and told her the chores were a “good skill” for her to have when she complained.

“I was asked to wash Bob’s bedsheets, and pick out fabrics for his sofas,” Graham Chase Robinson, 41, complained on the witness stand in her ongoing legal battle with the Oscar-winner, whom she worked for between 2008 and 2019.

“I am the VP of Production and Finance and I am ordering vacuum cleaners, setting up for Martin Scorsese’s birthday,” she scoffed, referring to the acclaimed director and longtime De Niro pal.

Despite her lofty title at De Niro’s production company, Robinson said she was saddled with supposedly degrading duties, including: Helping choose schools for the actor’s kids; collecting his prescriptions; buying plants and decorating his home; or picking up jewelry and going to antique stores for him.

“I felt I was taking care of his kids, taking care of him, taking care of his ex-girlfriend,” she testified.

“You do that with your girlfriend or your wife,” Robinson said she told her former boss, as she complained that the tasks were not befitting of her job title.

But De Niro, 80, gave her the runaround.

“His response to me was, ‘It was a good skill for me to have,'” Robinson told the court.

De Niro and Robinson sued and countersued each other in 2019 after she left the actor’s production company, Canal Productions, that year.

He accused her of stealing frequent flyer miles and skiving off her duties, while she claimed the “Dirty Grandpa” star subjected her to demeaning sexual harassment and treated her as his “office wife.”

Robinson began working for De Niro in 2008, and, after serving as his assistant for nine years, was promoted to vice president of production and finance — a title she created and De Niro approved, according to trial testimony.

Her duties in that role consisted of organizing De Niro’s personal logistics for movies he was was acting in, which included creating budgets for his crew, booking hotels for him and his family and managing his personal schedule in conjunction with filming schedules, Robinson testified Friday.

“Bob would never give me time off. He would never give me a personal moment,” she said on Tuesday, describing a suffocating and sometimes aggressive work environment.

At times, “he would get someone to yell at me for him,” Robinson told the court.

Robinson said De Niro’s girlfriend, Tiffany Chen, also harassed her by “taunting” her with “demeaning” household tasks.

Pressed on cross examination about whether the household chores De Niro and Chen, 45, allegedly made her do couldn’t have also been done by men, Robinson conceded they could.

On Monday, jurors heard phone calls from 2019 that Robinson secretly recorded in which she called Chen “sociopathic,” “f—king nuts,” and “drunk on power.”

She testified on Tuesday that she regretted calling Chen those things, but that she recorded the calls because she didn’t think anybody would believe her word over De Niro’s.

“Bob was going to be believed because it’s Robert De Niro. I felt like people wouldn’t have believed me,” she said.