From the original article in Saturday's paper:

“You’re hurting me. Stop,” she remembers telling him. She had had sex only once before.

“I don’t want to hurt you, baby,” he said. But he did not stop.

Ava struggled to concentrate and stay conscious.

“No. Stop,” she said, again. Again, he ignored her."

She didn't ask him to adjust positions, she told him to stop. Twice. He didn't. And that's where his behaviour became criminal.