THE younger brother of NSW Treasurer Dominic Perrottet is facing trial on three sexual assault charges over an incident at a University of Sydney residential college.
Jean Claude Perrottet, now aged 20, denies forcing himself on a woman, who was aged 19 at the time, after the pair kissed at a St John's college after-party.
The NSW District Court heard the woman had drunk an espresso martini and a few glasses of champagne before the incident.
In the early hours of October 18, 2015, she recalled lying in a leafy area underneath overhanging trees with Perrottet on top of her.
"Ow, I don't want to do that," the woman allegedly said to him.
Perrottet has pleaded not guilty to three charges of sexual intercourse without consent. He says the pair engaged in two sexual acts and completely denies a third act of sexual intercourse.
In her opening address to the jury, Crown prosecutor Fiona Gray said the court would hear evidence of how the teenage student repeatedly asked Perrottet to stop what he was doing but he persisted.
"The accused, however, continued … she felt scared at that stage," Ms Gray said.
The court heard that after the first alleged assault, the victim tried to pull up her underpants but she was overpowered and sexually assaulted twice more. She allegedly said: "No, I don't want to do this," and "No, stop!"
Perrottet's defence barrister Alissa Moen said she would question the alleged victim's reliability and honesty. "The defence contention is that it was entirely consensual."
On the night of the alleged sexual assault, the woman had attended the college's annual formal - along with more than 500 others.
After the formal part of the evening, the second-year university student went to her room to change clothes before returning to an area known as The Lemon Grove. It was here she met Perrottet - who did not live at the college and was not a student, but had been invited as a guest.
Ms Gray said the woman remembered dancing with him near her friends before kissing him.
Her memory was slightly "fragmented" but she later recalled being on the ground away from the college.
The court heard after the alleged sexual assault, the woman was captured on CCTV walking back to her dorm room with one shoe on - with the accused following closely behind.
A friend of the alleged victim has told police about how she knocked on the alleged victim's door and the accused responded, "I'm not going to have sex with her, we are just talking."
Eventually the friend's boyfriend came to the victim's room and told Perrottet: "Mate, you have to leave."
The court heard the woman was hesitant to tell anyone about what had happened but she later did and the police were called.
The trial continues.
Originally published as Rape trial: 'I don't want to do this'