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Three men sexually assaulted two young girls – one aged 11 and the other 12 – after picking them up in a car and giving them alcohol and cannabis, a trial has heard.

Noor Hason, 30, Rahamutullah Rahamutullah, 24, and Mohammed Nuramin, 22, are each accused of committing sexual offences at a Werribee property in early December 2018.

The three men deny the allegations and have each pleaded not guilty to 14 charges.

The County Court heard on Tuesday that Mr Rahamutullah phoned one of the girls on December 2, 2018 and then drove to pick the pair up from Melbourne's northern suburbs, not far from the Department of Health and Human Services unit where the children were staying.