Two other men were charged with gang rape of a 22-year-old woman who was allegedly assaulted by her chaperone and four colleagues in Sydney.
The woman had set up a meeting with a man she was communicating with on an online dating app in June.
While she was in the bathroom of a house, a larger group of men would show up and sexually assault her, the Supreme Court ruled in August.
On Tuesday, police arrested a 24-year-old man and charged him with two counts of aggravated corporate sexual assault, which carries a maximum life sentence.
He’s due to face the local Bankstown courthouse on Tuesday.
A 23-year-old man was also charged with two counts of aggravated sexual assault in company.
He was released on bail on Wednesday and is expected to appear in the local Newtown court on 22 September.
Alleged organizer of the attack, Ashcroft man Adam Kabbout, 24, made an unsuccessful bail offer to the Supreme Court in August as he fought six aggravated sexual charges without consent while in company.
The court was told that the police would not claim that Kabbout had sex with the woman, but would try to film the other men raping her.
A fourth man, 19, was charged in June for his alleged involvement and remains in court.