Susan Mitchell was surprised when her friend Brittany did not come into her room in the morning to unlock her from her bondage. Brittany was her 'key master', the person assigned by West Valley High's headmaster to release Susan every morning. Instead, it was Michelle Johnson who entered the room with the key for the lock around Susan's neck. Michelle had proven to be as sadistic as the headmaster and Susan was worried about this change of control. "Get up, bitch," Michelle said, throwing the key to Susan. "Headmaster wants you in his office right now. Leave the key."
Susan scurried up from her mattress and pushed her way past the girl. She usually had time to shower and eat but figured Michelle had purposely come late to make her have to hurry. Susan moved quickly down the stairs and through the atrium to the headmaster's office. She was met by his secretary, who rudely told her the headmaster wanted her in room 21. This room was where she and Brittany had first brought each other to pleasure a week ago.
The girl's heart sank as she walked in the room. She saw her best friend naked and straddling a wooden plank. Susan could tell the girl was impaled on a large metal dildo as she saw another one on the other end of the plank, which was mounted on a central fulcrum like a see-saw. A hose ran up to eat dildo but Susan couldn't figure out what that was for. Brittany's wrists were cuffed behind her back and a large ball gag was shoved in her mouth and fastened tightly so drool dripped down her chin. A black blindfold covered the girl's eyes but Susan could see the tears streaking Brittany's usually perfect makeup. Her beautiful breasts were clamped and heavy metal weights hung down from them. Her legs were cuffed under the board so she had no hope of lifting herself off her impaler. Susan had no idea how long her friend had been left like this.
Headmaster Krutz walked in behind Susan and spoke. "When I entrusted Miss Daniels with your key, I gave her certain expectations for how you were to be kept in your room. She chose to disobey those commands and so will no longer be entrusted with your care." Susan bit her lip thinking that Michelle might now be the one locking and unlocking her or making sure she was taken to the bathroom or to eat.
"I think you know what I expect you to do," he said to Susan. "Don't make me tell you."
Susan looked at the large metal dildo and then back to the headmaster. She walked over to the board and pulled the board down, lifting Brittany into the air. She knew this likely caused her friend additional pain. She lifted her leg up and over the board and slowly lowered herself down onto the slick metal object until it was deep inside her. Krutz came over and locked Susan's hands behind her back and chained her legs as well so she also could not lift herself off the metal cylinder. The headmaster attached two small pads over the girl's nipples and another one in the middle of her chest. He then crossed over to Brittany and released the girl's nipple clamps. He put similar pads on Brittany's nipples and chest.
Krutz addressed Susan. "The pads detect your heart rate, among other things so we will be able to tell if either of you orgasm. Whichever of you cums first will cause extreme displeasure to the other one. So have fun." Slowly the teeter-totter started to rise Susan into the air, lowering Brittany. Susan called out to her friend, "I'm so sorry, Brit, so sorry." Brittany did not respond. Susan hadn't seen the earplugs in her friend's ears, which played soft music and hushed sounds from the room. Her friend was completely unaware Susan was attached to the other side of the wooden board.
