A jury has retired in the case of a prominent man accused of multiple indecencies against two girls.

During a short address Justice Geoffrey Venning reminded the 11 jury members to set aside any prejudice and knowledge they had about the defendant.

"As jurors, you have to be objective and you must put all those feelings to one side," he said.

Earlier, defence for the accused said the complainants' allegations "don't stack up", while the Crown denied the girls had a "conspiracy".

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The jury heard closing arguments from the man's defence lawyer, Arthur Fairley, following final statements from Crown prosecutor Brian Dickey at the end of the week-long trial at the High Court at Whangarei.

"We really have come to a position in this particular case where there is fundamentally a simple, substantive issue for you to determine," Dickey began.

"That is, whether either, or both, of these young women have concocted the story that gives rise to the (charges), or whether, beyond reasonable doubt, it happened.

"The suggestion seems to be from the defence that the girls, particularly (the youngest complainant) reconstructed entirely innocent events... into allegations of sexual abuse.

"Either that, or it's just a remarkable coincidence that the two girls should make up such similar stories about what happened to them.

"The Crown says to you that the reality is simpler than that. There is no concoction, there is no conspiracy."

The man has pleaded not guilty to 12 charges of doing an indecent act on two complainants, one a child at the time of the alleged offending.

Broad suppression orders prevent naming him, his alleged victims, or their connection and where the alleged offending took place.

Jurors were told the girls had received massages from the accused and he had "sneakily" and "surreptitiously" touched them on their breasts, upper thighs and bottoms while adults in the room weren't watching.

The girls also claimed he had pushed his groin into them while their backs were turned, and one said he had put her foot on his penis while he massaged her foot.

The accused adamantly denied the accusations, saying the girls had always initiated the massages because he was experienced at giving them and because they had various ailments to their feet and shoulders.

"They have their reasons (for lying) I'm sure," he told the court last week.

On Monday morning Fairley said jurors should closely look at the girls' allegations because their testimony "does not stack up".

"It makes no sense if you use hard analysis," he said.

He highlighted the evidence of several witnesses who saw the massages, and the interactions of the girls with the accused over several years, with all of them saying they had no concerns.

The girls had "developed" their allegations so that "it slightly shifts the true story askew", he said.

He rejected the Crown's proposition that if the girls were going to maliciously lie, then they would lie "bigger".

"The Crown says, 'well you can believe the complainants because if they were making up lies, they would have made up bigger lies', (but) from where this man is sitting, it's a pretty big lie," Fairley said, pointing to his client.

Earlier, Dickey said much of the defence's case did "little to assist" the jury.

He said although one of the victims "hadn't made a great witness" because of her confusion over the alleged incidents, he attributed that to "struggling to communicate" what had allegedly been done to her.

"And that would make sense if what she says has happened to her, has happened to her," Dickey said. "These are young people who have come to court to talk about difficult things. The suggestion that it is fun for them to talk about, with respect, I ask you to treat with some caution.

"If they're not being truthful, if they're making it up, if they're liars, they must have severely disliked (the accused) because what they have done, is not only falsely allege these things, but maintained the lies for two years. It's not just making it up one day... it's maintaining it in the court."

Justice Geoffrey Venning will make his final comments to the jury in the afternoon.