She said she spent some time alone with Marinovich at his house in west Auckland, and on at least two occasions sat on his lap.
"I just wasn't attracted to him like that. It did make me feel good but I wasn't sure it was ok.''
She said on one occasion she asked her parents to drop her at a party in west Auckland with her friend.
But instead of going to the party, she and her friend walked up the road to the dairy where they were picked up by Marinovich in his car.
Crown prosecutor Tiffany Robertson asked why she didn't tell her parents she was going out with Marinovich.
"Because they would never let me go.''
She said Marinovich bought them a bottle of feijoa vodka which she and her friend drank in the back of the car while parked at Mission Bay.
The woman said she was drunk but her friend was "really, really drunk'' when the alleged offending occurred.
Ms Robertson asked the woman if she had done anything to help her friend.
The woman broke down in tears and said she did "nothing''.
"I was really drunk myself ... I don't know why I didn't do anything, I just got there and went along with it.''
Marinovich dropped the two girls off at her house and she recalled telling her mother that her friend drank too much at the party.
