fns-199 playing pranks with classmates while preparing for the school festival. the rope of the handcuffs that were tied up as a prank triggered my masochistic switch—after enduring the wriggling of my hips and suppressing my moans, i awakened as a masochistic pet. from that day on, we became addicted to playing s&m games that we absolutely had to keep a secret from our classmates… yoda rin