The former aide to rap tycoon Sean Diddy told a New York court that he repeatedly sexually assaulted her when he was hired by him for eight years.

Witnesses - The witness who testified anonymously under the pseudonym "Mia" also said in tears that she was worried about Mr. Combs' violent anger while working next to him.

The hip-hop tycoon watched from the defense table as his legs folded up on his legs, testifying that she was worried about retribution for what he called abuse.

Mr. Combs, 55, pleaded not guilty to federal charges of extortion, sex trafficking and transportation.

Warning: This story contains some details that some readers may find painful

"I can't tell him about the sandwich," she said. "I don't know anything."

Mr Combs' legal team has not yet had the opportunity to question MIA or respond to her claims.

She is the second witness in the New York trial, accusing Mr. Coms of sexual abuse with Mr. Coms’ ex-girlfriend, Casandra Ventura.

Mia testified that she began working as a personal assistant for Mr. Combs in the mid-209s and joined what she called a “chaotic” and “toxic” work environment.

"The high is really high, the low is really very low," she told the court Thursday.

The work required her to "always within Mr. Combs' vision range", testify, and "expect his needs, whimsical and mood".

She said she was often asked to stay in his home where she could not lock the door or left without the rapper's permission.

Mia testified that he had been violent against Mr. Combs during his time at work.

Mia told the court that at one time she said he threw a pasta bowl at her, which narrowly missed her head.

She said there was another time when she told him that the wifi nearby was still fixed, Mr. Combs forced the computer to throw the computer on Mia's head.

She also testified another situation when she witnessed Combs' violence with his ex-girlfriend, Ms. Ventura.

She told the court that Mia had been on vacation with the couple. She testified that one late one night during the trip, she said Ms. Ventura ran into the room and screamed Mr. Coms "to kill me." They ran away and hid on the beach, she said.

Also during that holiday, Mia testified that she and Ms. Ventura had used paddleboards to get out of Mr. Coms walking back and forth on the beach. Before they knew it, the sky turned dark and adapted to a storm.

Mia testified: "If I face the horror of nature, or go back to Mr. Combs, I'm trying to weigh it."

Mia was there one night in 2013 when she said Mr. Coms was knocking on Ms. Ventura’s door in Los Angeles.

She testified that he opened his eyebrows as he attacked her and threw her onto the bed frame. Mia told the court that she tried to jump on Mr. Coms' back but he threw her against the wall.

"He actually wants to kill her," Mia said she remembered herself thinking.

Mia told the court that despite witnessing the abuse of Ms. Ventura by Combs, she did not report it to him because she "believed Puff's authority above the police."

She testified several instances of Mr. Coms having sexually assaulted her, including one time when she said she woke up and he tried to rape her.

Mia told the court that the attack began early in her career working with Mr. Combs, including one night at the Plaza Hotel on his 40th birthday.

She said he gave her two shots of vodka, which made her "very hard", kissed her and placed her hands on her clothes.

On another night in the 2009-10 years, Mia said she woke up to Mr. Coms’ “weight” when she slept in a bunk bed at Mr. Los Angeles’ home. She said she was confused and Mr. Coms began raping her.

"I just freeze it," she said. "It's fast, but it feels like forever."

Mia told the court that Mr Combs had sexual assaulted her "once occasionally" throughout her entire time working for the rapper.

But she told the court that she didn't always remember the details, just "the dark feeling in my belly."

At the urging of the prosecutor, why didn't she say "no" when Mr. Coms beat her or went to the police, Mia told the court that she was worried about what he would do.

"I know his power," she said. "I know his control over me, and I don't want to lose everything I work so hard."

She told the court another aide was fired for reporting Mr. Coms' violence against Ms. Ventura.

She testified that Mr Combs also threatened to tell Mia's close friend Ms. Ventura about their sexual intercourse.

After the alleged attack, Mia told the court that she tried her best to pretend that the "most shameful thing" of her life had never happened.

When the prosecutor asked her why she told her story in court, she replied: "I have to tell the truth, the whole truth, only the fact."

The MIA will continue to testify on Friday and Mr Combs's defense team will be able to question her in the stands.