‘Scared’ Rebel Wilson describes on-set humiliation by Sacha Baron Cohen in shocking memoir excerpt

Rebel Wilson describes feeling “scared” of her “Grimsby” co-star Sacha Baron Cohen in a shocking excerpt from her forthcoming memoir.

“It felt like every time I’d speak to SBC, he’d mention that he wanted me to go naked in a future scene,” Wilson claims in “Rebel Rising” (per People). “I was like, ‘Ha, I don’t do nudity, Sacha.’”

The “Pitch Perfect” star, 44, goes on to recall the “Borat” actor, 52, subsequently summoning her “via a production assistant” to say she “needed to film an additional scene” for their 2016 action movie.

The actress claims she felt “scared” on set. ©Columbia Pictures/Courtesy Everett Collection Cohen repeatedly pressured her to do nude scenes, Wilson alleges. ©Columbia Pictures/Courtesy Everett Collection

“Then he pulls his pants down,” she alleges. “SBC says very matter-of-factly: ‘Okay, now I want you to stick your finger up my ass.’ And I’m like, ‘What?? … No!!’”

Wilson says she “finally compromised” by slapping Cohen’s backside and improvising “a few lines” so she could “get out of there.”

However, she later needed to film an intimate scene with the comedian.

She also claims Cohen asked her to “stick a finger up” his butt. Getty Images for Netflix The actor has denied her claims, calling them “demonstrably false” via his rep. Daniel Smith

“I still had to simulate having sex with this guy. I still had to kiss him repeatedly,” she writes.

“[Months later], it really sank in that all this wasn’t something that could be laughed off. I relayed to the producers that I would not be doing any promotion for the film.”

After calling the film’s lack of box office success “karma enough,” the actress insists she was “not about canceling anybody” by sharing her story.

This weekend, Wilson named Cohen as the “massive a–hole” featured in her book. Instagram She alleged he has attempted to “threaten” and “bully” her over the memoir. Instagram/@rebelwilson “Rebel Rising” hits shelves April 2. Simon & Schuster

“I’m sharing … now because the more women talk about things like this, hopefully the less it happens,” she explains.

Wilson, who shared similar on-set anecdotes about Cohen on the “Kyle & Jackie O” radio show in 2014, made headlines over the weekend when she named him as the “massive a–hole” she wrote about in “Rebel Rising,” out April 2.

“He’s hired a crisis PR manager and lawyers,” she told her Instagram followers. “He is trying to stop press coming out about my book. But the book WILL come out, and you will all know the truth.”

Cohen has been married to Isla Fisher since 2010. Getty Images for Netflix Wilson, for her part, is engaged to Ramona Agruma. Instagram/@rebelwilson

Cohen has since denied wrongdoing, with his rep telling Page Six the claims are “demonstrably false” and “directly contradicted by extensive, detailed evidence, including contemporaneous documents, film footage and eyewitness accounts from those present before, during and after the production.”

His spokesperson provided People with anonymous statements from people associated with the film, claiming Wilson “was treated with the utmost respect and empowerment and was welcomed as a collaborator in all creative areas.”

She has since doubled down on her allegations, writing via Instagram Tuesday that she will not “be threatened.”