I'm Hiroshi. I've been dating my girlfriend for half a year now. Her mother, Ms. Yuki, is a single mother who raised her daughter alone and is a beautiful, hardworking woman with a calm aura... But actually, I have a secret from my girlfriend... I am also having sex with her mother... Both Ms. Yuki and I think this relationship is not good, but when we are alone together, we can't help but... grind our hips against each other...
