My mother returned to her parents' home to care for my grandfather, and I've been living alone for the past few months... I've become too open-minded with no one around, and the house is a mess... Whether she knew about it or not, my worried mother suddenly called a housekeeper to the house, and the person who came was none other than my friend's mother, Megumi, who I used to masturbate to! She pretended to be calm on the surface, but I wonder how many times I've masturbated to that plump body. Whether she knew about it or not, I was watching her clean up the house in a defenseless state...