One day, Shizuka was having sex with her husband. Shizuka repeatedly asked for sex, but her husband could not respond. Her son was secretly watching the act. The next day, while Shizuka was cleaning, her son came over. Shizuka Shizuka that her son was acting strangely. When he saw his mother, he embraced her. Shizuka refused, but her son forced himself on her. That night, Shizuka was embraced by her son again. Before she knew it, Shizuka had become addicted to her son's cock and began to rape him at night...