I was indulging in a massively convulsing, shrimp-like sexual encounter with my beloved daughter's boyfriend. (Tomoda Maki ROE-399)

While pregnant with her daughter Rio, the man she was dating, who was supposed to become her husband, disappeared. For the past ten years, she had worked tirelessly to ensure her daughter wouldn't have to worry about being a single mother. After graduating from university, she found a job, got married, and her daughter's future seemed bright. Then one day, she suddenly had sex with her daughter's boyfriend. Although her love for her daughter was the opposite of what she felt, she couldn't control the desire she had been suppressing until now; an electric current surged through her body, and she was overwhelmed by a numbing pleasure…