Sex slave

The man cannot be named to protect the identity of the girl, who was aged between 11 and 13 when the abuse happened.

The District Court in Perth was told the 42-year-old man met six men through online advertisements and offered the girl to them for sex while he watched or participated.

Some of the abuse was recorded and in one video the girl was heard to say "please stop".

The court heard that in another instance, when the girl protested about being abused, her father chastised her and told her to "start".

Rob Johnson, 44, and his wife, Marie Johnson, 43, of Port St. Lucie, were arrested Tuesday and charged with felony sexual assault charges.

The Port St. Lucie Police Department said the 13-year-old girl was sent to live with the Johnsons after her mother died, and soon after her arrival was told she could only be part of their family by having sex with them.