[GVH-834] "I'm a silent and quiet sister, so I can do anything" When I brainwashed my timid sister, my nipples became 100 times more sensitive and I started to cum with ahegai nipples.

The freeter's older brother, Takashi, had a younger sister, Kotone, a schoolgirl who was quiet and withdrawn. One day, when I casually used the "hypnotic ray" I borrowed from a friend on my sister, her nipples became 100 times more sensitive than ordinary people... Since then, Kotone's daily life has changed completely. The stimulation of her nipples didn't stop and she became incontinent while making an ahegai face. The older brother, Takashi, can't contain his excitement at his sister's changed appearance, and continues to hit his agonizing sexual desire on the tone. She relentlessly blames her nipples every day, makes her cum over and over again, and repeats her ahegao face and incontinence. When it was over, I would pretend that nothing happened and erase my memory... #ちんP