They use psychological to break her...

"Ah ladies, welcome! If you could bring our guest to this chair that I've set up for her please..."

The chair had the seat cut out to such a degree, that a machine-operated dildo could go up and down through it, it also had shackles for the ankles and wrists as well as a head restraint that made the person sitting in it have to watch what was being shown in front of them.

After shackling Robin to the chair, Miss Patriot closed the door to the warehouse after driving the van in. Robin, still out cold was powerless to stop Renee from injecting her with the same powerful Truth Serum that she'd previously used on Miss Patriot before placing a set of headphones over the **** detectives ears.

Her chair was facing a perspex window that she could see into but the other person couldn't see out of, a reverse two-way mirror if you will. Whilst Ruth and Miss Patriot had been out on their excursion with Robin, Renee hadn't been idle, thanks to Miss Patriot telling her Robin's surname, she was able to scour the school records to see if Robin had any relatives at the school. Unfortunately for Robin, Renee was successful and discovered Robin's 18 year old sister Anika, who Robin had custody of. Using some subterfuge, Renee got Anika to come to the office where she gave the young girl a coffee dosed with a powerful mind-control/sedative which took immediate affect.

The **** made Anika only able to accept orders from Renee and Ruth, Renee also gave her a permanent super-fertility booster which destroyed any protection Anika was using. Anika was patiently waiting behind the window wearing a lacy set of red lingerie, when Ruth joined her in the room, Renee woke Robin up after removing the blindfold and gag.

Ruth passionately made out with Anika as Robin screamed at her sister to get away from the older woman, before gently pushing Anika to her knees as she dropped her trousers, revealing her semi-hard cock, making Robin scream again, as Anika took Ruth's cock into her mouth, Renee's voice whispered in Robin's ear: "Tell me who else knows about my operations..."