My wife and I live with my parents. My father became addicted to alcohol after he was laid off. But my mother is still devoted to my father. My wife told me how she didn't know they would ever divorce. But my wife refused to have sex with me at night and always went to bed early. One day, unable to fall asleep, I accidentally witnessed my parents having sex. My father came inside my mother and went out drinking in the middle of the night. After that, my mother started to pleasure herself without saying a word. The next day, I was at home and there was no one there. I suddenly noticed my mother sleeping. When I tried to cover her with the futon, I remembered the scene of her masturbating the day before, and I couldn't help it, so I hugged her and caressed her...