One of the youths started acting like a ghost.
Another accomplice then ordered the victim to perform sex acts on them. She refused at first, but gave in after they threatened her.
The court heard that the girl was first targeted in early 2008 after she rejected one of the boys.
Their ringleader then decided to get his revenge. Telling his friends that he had seen people being possessed by 'Chinese gods' during temple visits, he suggested that they all pretend to have been taken over by spirits.
