When I Saw My Sister, Whom I Haven't Talked To In Years, Being Forcibly Fucked By A Man Who Is A Charlatan, For Some Reason I Felt Like I Was Being Cuckolded And I Couldn't Stop Getting Traumatic Erections Mei Miyajima

Since I got into that famous prep school, my older sister and I have grown distant. One night, I invite Sugai from the same school over, and we run into my sister without makeup. That day, she gets taken by Sugai but learns pleasure and blossoms as a woman. I turned a blind eye as my sister was assaulted and became Sugai's fuck buddy. Even today, I listen to my sister's moans through the wall and get a depressed boner.