Mr Agresti knew, prosecutor Rebecca Christensen said, that it was the woman's drunkenness that caused any apparent consent, and Mr Agresti later painted a picture of the night that sought to shift the blame.

In the defence closing address, the man's barrister said the jury had heard a "ferocious attack" on the young man.

"He has lived every young man's worst nightmare," the barrister Philip Dunn QC told the court.

The jury retired on Thursday to consider its verdict on whether Mr Agresti, 23, is guilty or not guilty of the one charge against him, of sexual intercourse without consent.

In her closing address, Ms Christensen said the woman was "blind drunk" the night of June 22, 2013, that she could not see or walk properly, was falling asleep in the taxi on the way home, and had vomited in the garden.

She pointed to an illegible text message the woman sent to a friend - that Mr Agresti admitted he had seen.

"She couldn't even type, let alone consent to sex," Ms Christensen said.

The prosecutor said the woman told friends shortly after the incident she had been "in and out of consciousness". That was the story she told from the beginning, she said.

Ms Christensen said Mr Agresti knew he had done something wrong, and told others what had happened even though they had agreed to keep it a secret, to get "his story out".

"He paints a picture that shifts the blame," she said.

She said he made out that he was more drunk than he was, and the woman much less.

He claimed to others that the woman had shown interest in him all night, and he had lied when he said he did not remember much of what happened, she said.

He told friends afterwards that she was a bad "root", had just laid there and "star fished", which the prosecutor said was consistent with her being very drunk.

But he later told the court the woman was an active participant who had started the act, she said.

She invited the jury to find him guilty.

In the defence closing arguments, Mr Dunn said that the man, who the other cadets agreed had also been affected by alcohol that night, did tell other people what had happened.

He couldn't help himself, Mr Dunn said, he was an 18-year-old man who thought he had got lucky.

"And that's a really cunning defence mechanism? That's an 18-year-old youth," he said.

Mr Dunn said that the only evidence of the woman being really drunk came from herself.

"The fact is they had both been drinking," he said.

He said another cadet accused Mr Agresti on Facebook of having sex with the woman while she slept, and the rumours snowballed.

It was a tragedy for both cadets, he said.

He told the jury the woman never said she did not consent or that she was raped, telling the jury that the only person who said she was too drunk to consent was the prosecution.

"Regretting sex when you've been drinking is not rape," he said, "regretting sex when people find out ... is not rape."

"You must have a doubt," he said.

Justice Michael Elkaim gave the jurors directions on the law, including around consent, and they retired about 3.30pm to consider the verdict.

They return on Friday to continue deliberating.