Takeshi's mother had to leave for a few days, so she asked her cousin Mikako to come and take care of him. Mikako's cousin is very beautiful and also very lascivious. That evening, Takeshi used his camera toy to discover Mikako masturbating for her boyfriend to watch over the phone. From then on, Takeshi took advantage of Mikako and made her do as he pleased. Takeshi tied Mikako to the toy he had set up, slowly undressing her while Mikako helplessly resisted. He touched, licked every inch of Mikako's body, made her give him oral sex, and finally had sex with her and ejaculated inside her. Despite initially refusing, Mikako's pleasure in having sex with Takeshi awakened her lascivious nature. They continued to have sex and engage in kinky activities for four days before Takeshi's mother returned...