After returning to my hometown, I discovered that my grandfather and mother were having an affair. What I witnessed that day turned me into a lifelong "mature woman fetishist." (Inamori Miyabi ROE-544)

I lived in Tokyo, away from my hometown, and took advantage of a long-awaited vacation to return home. My parents and grandfather lived there. After my grandmother passed away, my grandfather fell into a depression and became semi-bedridden, cared for by my mother. My father had no interest in his family and was always out running around. Until one day, strange sounds came from my grandfather's room. It was undoubtedly the moaning of a woman during orgasm. Curious, I quietly pulled open the shoji door to take a look. And what I saw... in the room, I saw my mother being sucked on, her face full of affection as she stroked my grandfather's penis, her appearance so lewd...