Sean “Diddy” Combs’ former live-in assistant “Mia” sobbed on the stand Thursday as she recalled silently suffering the sick music mogul’s sexual assaults – and a litany of other indignities and abuse from her powerful boss.

The excruciating testimony by Mia – who testified anonymously as a victim of alleged sexual abuse by the Bad Boy Records founder – captivated the Manhattan federal courtroom as she detailed the tortuous eight years she spent working for the volatile Combs.

Mia’s voice cracked as she recalled Combs’ alleged “sporadic” sexual assaults, which unfolded without rhyme or reason — and even within her bedroom inside the hip-hop star’s mansion.

Combs had creepily prohibited Mia from locking her door, she testified, before recounting waking to feel the “weight” of her boss in her bed.

“I remember it was sort of like him telling me shhh,” Mia recounted. “It happened so fast, using one hand to get his, I guess his pants or whatever off.”

She said she “froze and felt, “terrified and confused and ashamed and… scared.”

When prosecutor Madison Smyser asked Mia if she wanted to have sex with Combs, she sobbed and responded, “No.”

The gut-wrenching testimony riveted jurors in Combs’ sex trafficking and racketeering trial, even as Mia’s voice barely rose above a whisper as she recounted his sick alleged abuse.

Mia also outlined other horrifying abuse from Combs as she worked for him between 2009 and 2017, including a time he threw a bowl of spaghetti at her because she went to go change her tampon.

“He’s thrown things at me, he’s thrown me against the wall, he’s thrown me into a pool, he’s thrown an ice bucket on my head,” Mia recalled. “He has slammed my arm into a door and he’s also … sexually assaulted me.”

Mia previously worked for Harvey Weinstein’s ex-wife and designer Georgina Chapman and comedian Mike Myers.

She joined a slew of witnesses who recounted witnessing Combs abuse his on-and-off former girlfriend Cassie Ventura, who also testified to his violent rages.

At one point, the iconic singer Prince’s security guards had to pull Combs off Ventura when he flew into a rage over her and Mia sneaking out to a party at His Royal Badness’ house, the ex-assistant testified.

Combs also would take drugs at “inappropriate” times, such as before appearing on comedian Chelsea Handler’s talk show, Mia said.

Mia testified that Combs first sexually assaulted her in 2009, during his 40th birthday party in a penthouse at the Plaza Hotel.

Weinstein was also at the bash, which included other high-profile guests such as the rapper Nelly and the Rev. Al Sharpton, according to a blog post by Martha Stewart chronicling the event.

Combs at one point during the party called his freshly hired assistant into the kitchen, clearing everyone else out, Mia recalled.

The Sean John clothing creator began telling her what a great job she was doing working for him, before pouring them both two shots of vodka to toast his birthday, she recounted.

Mia testified the shots affected her much more than normal. She said the next thing she knew Combs was kissing her and putting his hands up her dress.

“He put his arm next against my head against the wall and leaned in to kiss me and put his other hand up the side of my dress,” she testified, noting she didn’t want him to kiss or grope her.

The next thing Mia recalled is that she woke up mysteriously sitting in the chair in a meeting room of the penthouse with no recollection of how she ended up there.

At another point, Mia recalled that Combs abruptly forced her to give him oral sex as she sat on the floor of his closet to help him pack for a trip.

Mia said she felt “like trash. Scared and ashamed like an idiot,” after the incident.

“I knew his power and I knew his control over me. I didn’t want to lose everything that I worked so hard for in this world that was the only thing I had anymore,” Mia told jurors.

She said a slew of reasons stopped her from ever telling the police about the numerous times the mogul — whom she described as “the boss or the king, a very powerful person” — sexually assaulted her.

Besides feeling controlled by Combs’ violent rages, Mia said she was also worried she’d get blacklisted from the entertainment business and felt the cops were too enamored with the “I’ll Be Missing You” singer to take her claims seriously.

She’ll be back on the stand Friday.

Combs, 55, has pleaded not guilty. He could be sent to prison for the rest of his life, if convicted.