When I Brainwashed My Timid Younger Sister, Her Nipples Became 100 Times More Sensitive And She Started To Have Nipple Masturbatory Orgasms.

Freelancer older brother Takashi has a quiet, shy high school girl sister, Kotone. One day, he casually uses a "hypnosis ray" borrowed from a friend on his sister, and her nipples become 100 times more sensitive than normal... From then on, Kotone's daily life changes completely. She can't stop the stimulation on her nipples, showing an ecstatic face and losing control of her bladder. Older brother Takashi can't contain his excitement at his sister's transformed state, and keeps venting his pent-up sexual desires on Kotone. He relentlessly torments her nipples every day, making her cum over and over, repeating the ecstatic face and incontinence. After it's over, he uses hypnosis to make it as if nothing happened and erases her memory...! #ChinP