FTHTD-117 When I was playing around with my classmate and playing SM, the switch flipped and I became obedient! I became a masochist and my sensitivity increased, and I had sex with my classmate Miyu Aizawa

Miyu and I stayed behind to prepare for the school festival. There was a rope we had used for work, so I jokingly asked her if I could use it to tie her up. She said "Eh?" with a shy look on her face, but she didn't refuse. I tied her up ro