"I was seven or eight years old the first time he raped me,” Libe Rieber-Mohn told TV2 on Sunday. “We were staying at my grandmother’s house and slept in the same room. I had fallen asleep. I woke up with him lying on top of me, and raping me. I remember how terribly painful it was.”
Rieber-Mohn is a close friend of former prime minister Jens Stoltenberg and the wife of the Rune Bjerke, the chief executive of DNB, Norway's largest bank.
What was perhaps most shocking about Rieber-Mohn's story on TV2 was that even though doctors who examined her as a young girl noted down in her medical records that she had been raped, no one reported anything to the police or social services.
As a result of the trauma, Rieber-Mohn began misbehaving at school, and between the ages of 12 and 16, she admitted that she'd smoke marijuana, and sniffed glue and the solvent toluene, to try to numb the pain.
Aged 16 she pulled herself together, and soon after her step-father died.
"And then I was really, really happy," she told the channel.
Oslo's mayor Fabian Stang on Monday commended her for her "brave" decision to come forward, and Rieber-Mohn has been deluged with congratulatory messages.
On Monday, a post she made on Facebook thanking those who had given her support, was 'liked' more than 22,000 times.
"It is so great that there are so many good and decent people who will not accept that children are exposed to abuse," she wrote. "The support I'm getting now isn't just for me but for all victims of abuse."
“It is never, ever their fault,” she told Norway's NRK channel on Monday night. “It is solely the fault of the abuser.”