Former reality TV contestant and ex-footy WAG turned professional boxer Arabella Del Busso is spending her time behind bars whipping fellow prisoners into shape.

Daily Mail Australia has learned the glamorous ex-girlfriend of rugby league star Josh Reynolds is leading prison yard fitness training with other women locked up in the 531-inmate capacity Dillwynia Correctional Centre, in Sydney's north-west.

Australia's largest women's prison is currently home to Del Busso as she prepares to appeal the severity of her sentence for stealing from her employer.

The 33-year-old lingerie model was jailed on February 13 for stealing $52,000 from Rheumotology Specialist Care, where she worked as a receptionist in its practices at Kogarah, in Sydney's south, and Randwick, in the city's east. 

She had pleaded guilty to two counts of stealing as an employee between September 2019 and February 2020.

Magistrate Hugh Donnelly sentenced Del Busso to a minimum 12 months behind bars for what he described as an 'appalling breach of trust'.

After spending a few nights at Silverwater Women's Correctional Centre in Sydney's west, she assigned to do her time at Dillwynia and transferred by prison van to the facility 56km outside of Sydney. 

Now seven weeks into her sentence, the former SAS Australia star will appear in the NSW District Court, represented by lawyer Andrew Stewart, in a bid to get out of jail earlier. 

Mr Stewart told Daily Mail Australia that Del Busso was hoping to get a sentence reduction as she was remorseful and is 'trying to turn her life around'.

''It's not to pleasant being in jail for anyone. She is trying to get as much support as possible,' he said.

Del Busso has been adjusting to life in prison which includes spending about 17 hours each day in her three-metre by five-metre cell, prison meals served on a foil tray and associating with inmates serving time for violent offences.

However, it is understood that Del Busso is harnessing her expertise and fitness knowledge to keep herself trim and show the other inmates exercise routines.

'She is doing what she can to help other inmates,' Mr Stewart said. 

'Keeping fit, helping inmates who have a number of issues, making sure you eat, making sure you shower.

'She has expressed her remorse and has paid back what she was ordered to pay (about $30,000) from the money she saved up and was putting aside and prize money from boxing.'

On her arrival at Dillwynia, the sole female facility clustered with two male prisons in the Francis Greenway Correctional Complex, Del Busso was handed a pack including a toothbrush and toothpaste, soap, a plate, bowl and cup, and a roll of toilet paper.

Anything other than prison clothing is regarded as contraband. 

While inmates were once strip-searched on arrival, this usually only occurs now if a prison X-ray scanner identifies contraband hidden on an imate's person.

Shown to her cell, which has only a thin, vinyl covered mattress, Del Busso was provided with a meal prepared at the adjacent male prison, the Geoffrey Pearce Correctional Centre.

Her meals have included pre-packaged salads with cold meat, and hot meals of crumbed fish, chicken wings and chicken schnitzel to be eaten with plastic cutlery.

Under the NSW prison system's so-called Bangkok Rules, Del Busso has been encouraged to stay in contact with relatives or friends via weekly visits and calls via fixed telephone sin the jail's common areas.

In addition, women inmates have access to a tablet device each day at afternoon lock-in, and are allowed outgoing calls from these devices until 10pm.

Under what is known as the Mandela Rules, Del Busso also has had access to confer with her legal advisers.

Mr Stewart said that Del Busso was seeking 'a return to normalcy, back to working and her boxing career' on her release from prison.

'She's definitely nervous (about her appeal) but she's had time to reflect. She is sorry for it.' 

The one-time glamour model gained notoriety after her relationship with then Canterbury Bankstown Bulldogs NRL star Josh Reynolds dissolved when it became known she had faked a pregnancy.

In October 2020, she famously walked out of TV reality show SAS Australia after being interrogated about the relationship drama which had spilled into the public.