ROE-533 When I went home, my grandfather and mother were fucking. What I saw that day turned me into a lifelong 「mature woman lover」―. Mikumo Ayaka

I left my hometown to live in Tokyo, and I used my time off to finally return home. My parents and grandfather live at home. After grandmother passed away, grandfather has been depressed and listless, so mom is taking care of him, but dad doesn't give a damn about the family, always out and about… One day, I heard a sound like a cat in heat coming from my grandfather's room. Curious, I quietly opened the sliding door. Then... inside the room, there was my mother, sucking on his nipples and lovingly devouring my grandfather's dick.