Horrific allegations of a 12-year-old girl being kidnapped, blindfolded and bound to a tree in remote Pilbara bushland before being forced to perform sexual acts for days have been heard in a WA court.

The victim had travelled to stay with her aunt and her aunt’s partner in Newman for the school holidays of 1999/2000 when the alleged offending took place.

The historic abuse case was heard in the District Court on Wednesday. Credit:Emma Young

The two adults, who cannot be named to protect the victim’s identity, are on trial in the Perth District Court charged with historical sexual abuse against the woman’s niece.

In his opening address to the jury on Wednesday, state prosecuting lawyer Sean Dworcan told of an incident where the niece was allegedly kidnapped by the man.