Brooke Nevils, the former NBC staffer who accused Matt Lauer of sexual assault, is revealing graphic new details about what she says happened the night that changed her life — including waking up alone in a hotel room, soaked in blood, and too terrified to even name what had happened to her.

In her upcoming memoir, Unspeakable Things: Silence, Shame and the Stories We Choose to Believe, out Feb. 3, Nevils claims she awoke during the 2014 Winter Olympics in Sochi, Russia, to find her underwear and bedsheets “caked with blood” after an encounter she now describes as sexual assault.

At the time, Nevils was a junior NBC talent assistant. Lauer was one of the most powerful men in television.

According to an excerpt published by The Cut, Nevils says she had been drinking vodka shots with longtime mentor Meredith Vieira when Lauer joined them. Later, she alleges she was “drunk and alone” when Lauer insisted on anal sex, describing her body as unsteady and her mind as frantic as the room spun around her.

Lauer has long denied wrongdoing, insisting the relationship was consensual.

Nevils writes that the physical aftermath was immediate and brutal.

“It hurt to walk. It hurt to sit. It hurt to remember,” she recalls, adding that she woke up bleeding and in shock.

Instead of calling police, Nevils says she went into survival mode.

She describes tearing the blood-stained sheets off the bed so hotel staff wouldn’t see them, balling up her bloody underwear, and throwing it away — then walking out of the room as if nothing had happened.

She even replied politely to a follow-up message from Lauer, writing that his words felt “oddly comforting” and helped her convince herself it had all been a misunderstanding.

That belief collapsed days later.

Nevils alleges that when Lauer later invited her to his apartment, he produced towels “just in case,” referencing what had happened in Sochi. In that moment, she says, she realized he had seen the blood — and known all along.

“He saw it. He knew,” Nevils writes. “It was not a mistake. It was not a misunderstanding.”

She says she should have thought, “He’s a monster.”

Instead, she blamed herself.

Nevils claims the encounters didn’t stop there. She alleges multiple additional sexual encounters over the following months — including one she initiated herself, telling herself she was reclaiming control.

“I never did,” she writes. “I just implicated myself in my own abuse.”

In 2017, Nevils filed a complaint with NBC. Lauer was fired within 24 hours, his marriage later collapsed, and other women came forward with their own allegations. He has never been charged with or convicted of a crime.

Nevils says the emotional fallout nearly destroyed her.

She describes herself as spiraling into paranoia, alcoholism, and self-loathing, eventually ending up hospitalized and believing the world would be better off without her.

Today, Nevils says she has rebuilt her life, married, and welcomed two children — but says the scars remain.

“I know others are still trapped where I once was,” she writes. “Believing they don’t deserve the futures that still lie ahead of them.”

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