A series of taped phone calls were played to the Wollongong District Court jury on Wednesday made in the days after a sexual encounter between the woman, the St George footballer and a second man in December 2018.

"I'm rattled," de Belin told his sister Erica.

"It's so f***ed what she's gone in there and said (to police)."

De Belin said the trio had consensual sex but the woman became "weird" afterwards before returning to "normal" and heading back to town with them.

"She has not at one point said 'no', 'no, stop'," he said.

"The only time was at the end of it she got a little bit weird and said 'you've got a girlfriend'."

De Belin, 29, and Shell Cove man Callan Sinclair, 23, have pleaded not guilty to five charges of aggravated sexual assault in the bedroom of a North Wollongong unit in December.

Both maintain the sex with the then-19-year-old was consensual.

The jury also heard the tape of the men discussing the rape accusation over the phone and how the footballer's legal advice was to not speak to the police.

"I'd rather just tell the truth, would you?" de Belin says.

"I'm not lying, we are telling the truth. It was consensual sex, she never got raped."

The men acknowledged they shouldn't be speaking about the case, with one saying "it's not like we're trying to get a story straight".

Sinclair then clarified with de Belin if he recalled taking a shower before the woman took her top off.

"I got nude and you start having sex with her first and I came in," the younger man said.

"Yes," de Belin said.

One then said the "best-case scenario" was that the police "realise she's lying".

In another call, the Dragons footballer tells a man the complainant "had to climb a fence to get into the house" and that her going to police led to him tell his partner Alyce about the group sex.

"My image is tarnished, my missus as well is pregnant," he says.

"You make your own bed, gotta sleep in it.

"(Alyce) knows I've made an error and cheated on her but she knows I haven't done anything criminally wrong."

The woman has told the jury the NRL star undressed her and forced himself on top of her as she said "no".

He then made way for Sinclair and moved his groin to the then-teenager's head.

The men allegedly alternated positions as the woman went "dead and numb inside and just let it happen", the trial has heard.

"I just had tears out of my eyes the whole time," she said.

A tape was also played of Sinclair's conversation with his mother in which he says the woman "came back out with us and everything" after the alleged assault.

"If you were raped by someone, you wouldn't go out with them again, would you?" he says.

"I just can't believe it, Mum."

He explains de Belin had been charged but police were yet to talk to him.

"We've got nothing to hide," he said.

Each recorded phone call was lawfully intercepted by police, the jury was told.

After acknowledging neither accused man has any criminal record "whatsoever" the Crown closed its case.

The trial resumes on Thursday.

Australian Associated Press