Hello, I'm Hiroshi. It's been half a year since I started dating my girlfriend. Her mother, Mrs. Natsuko, is a single mother who raised her daughter alone and is a kind, beautiful, hardworking woman with a calm atmosphere... However, actually, I've been keeping a secret from my girlfriend... I've also had sex with her mother... Both Mrs. Natsuko and I think this kind of relationship isn't good... but we can't stop our urges for reproduction.
