Hello everyone.
I'm looking for a story I read quite a while ago.
In the story 2 girls invite a third to a party. They get on a bus and give her a drugged drink. The 2 girls and their dad take her back to a secret cabin and force her into sex. I believe they try to use some combination of drugs and an audio headset to turn their victims into slaves. I believe after that she gets saved, and they turn the hypno gear around on the bad guys
Tia for any help