The youths stand accused of assaulting a mentally disabled 18-year-old woman, but German prosecutors admit some of them are too young to stand trial.
She now works reluctantly as a cam model, a term for men and women who perform sex acts on live webcams for Internet customers.
Even so, she cautions young women against entering the adult film industry because of how society will treat them.
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I have to face this.
Reports say they then dragged her into some bushes and filmed a sexual assault on their phones.
The incident took place on Friday in the western city of Mülheim after the group, all originally from Bulgaria, purportedly lured the victim into a playground in the park.
L e,I,P,D :L e ,void 0!.