A Perth woman was on the verge of breaking down as she revealed to a jury that her mother allegedly encouraged her to have sex with her stepfather, claiming to her daughter it would stop her sleeping around and be a safe way to gain sexual experience.

The 21-year-old woman was testifying at the District Court trial of her stepfather, charged with 29 sexual offences, and her mother, who is fighting one count of failing to protect her child.

She said yesterday the alleged sexual abuse started in 2000 when she was 11 and continued until she left home at 18.

The woman said when she was 17 her stepfather told her mother, who did not appear to know the alleged abuse started years earlier, he wanted to have sex with her because he had feelings for her. She said her mother told her it was a "good idea" and would be a "good experience", despite her protesting she did not want to.The stepfather's lawyer Gary Rodgers said his client, aged 41, denied all the allegations and suggested the alleged victim was not credible and had fabricated her story for "revenge".

Marc Saupin, lawyer for the 48-year-old mother, said she had "no knowledge of these events", which were some of the worst allegations imaginable.

The alleged victim said she was "completely petrified" of her controlling stepfather, who threatened to kill her after the first sexual attack if she told anyone.

She said her stepfather once told her he had sex with her because he was not physically attracted to her mother any more and "in a perfect world we could all live together and it would be accepted".

She claimed her stepfather made her watch pornography and she tried to resist his sexual attacks, which included forcing her to have sex with him in a secluded spot during regular driving lessons.

The alleged victim told jurors that at 16 she discovered she was pregnant to her stepfather and had an abortion. "He told me I got myself into this mess; I had to sort it out," she said.

She said she made a complaint to police last year after telling her natural father and his partner.

The West Australian

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