Incest Survivors Support Group
Incest refers to any sexual activity between closely related persons that is illegal or socially taboo. Consensual adult incest is very rare. Incest between adults and prepubescent or adolescent children is a form of child sexual abuse that has been shown to be one of the most extreme forms of childhood trauma. If you or a loved one is a survivor of incest, join the group...
If they were, they only have evidence of an underage boy being raped and terrorized which is hardly pornographic.
This was in 1974, and there was no internet, so I do not know that part of the fear.
But I do understand how terrifying it feels to have several people laughing while being raped.
Then again, maybe your worries are unfounded.
Hugs