A former work colleague of the woman at the centre of the Cronulla Sharks sex scandal involving Matthew Johns claims her co-worker bragged about the incident.

Tania Boyd has told the Nine Network that the woman in the ABC's Four Corners report, identified as "Clare", had boasted to her workmates about bedding several players and only contacted police five days after the alleged incident.

"She was absolutely excited about the fact. She was bragging about it to the staff and quite willing, openly saying how she had sex with several players," said Boyd.

"We were quite disgusted about it. There was no trauma whatsoever.

"I'm disgusted that a woman can all of a sudden change her story from having a great time to then turning it into a terrible crime.

"One minute she was absolutely bragging about it, she did not know names. These names only came to light to us in the last day.

"We all just thought it was hilarious until five days later the police came to work and were horrified she had now changed her story to say she was now a victim of crime.

"It was definitely consensual, absolutely.

"She is saying she is still traumatised etcetera, well she wasn't for five days, or four days at least, after that affair.

"I can't work out what's happened. Does it take five days for it to sink in?"

The woman told the ABC that the night in which she had group sex with several Cronulla players at a Christchurch hotel seven years ago left her with psychological damage and led her to abandoning her studies.

Psychiatrists reported that she was suicidal, had cut her wrists several times and bought a rope to hang herself.

She told the ABC she felt degraded and traumatised by the incident and despised the players involved.

Among the allegations aired on Monday, the woman said two men rubbed their penises in her face while other men stood watching and masturbating.

Six men had sex with her while another six looked on. There was always someone touching her, she said.

"For years and years afterwards I was drinking a lot, crying a lot and losing a lot of friends and doing quite destructive things to myself and other people," she told the program.

"At the end of it, I wasn't so much drinking heaps and heaps, I was more scared to go out of the house."

She said the destructive period lasted about four or five years and she was now speaking out to let the wives and girlfriends of those involved know what they had done.

"I was so angry and I wanted their lives destroyed like mine was," she said.

"If I had a gun I'd shoot them right now.

"I hate them. They disgust me. For all that they did, I hate them so much."

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