mother and son, the relationship with my son who can't go back

It has been ten years since my father died. A mother who raised me with a single woman suddenly brought her remarriage partner. Honestly, I wasn't so surprised. No, the emotion of joy was greater. However, since I am 24 years old and of a delicate age, living with my uncle for the first time was a little resistive. At this time, it was that kind of emotion, but my mother's remarriage partner was actually a man who was not very good. His father-in-law had not changed since he lost his job in Restora. He fell in love with alcohol every day and became violent to his mother. He was the father-in-law of sake soaking without looking for a job. His mother increased the number of members and supported his family. Of course I had paid, but my mother kept stinging the man. One day I saw a shocking sight. On my way home from work, my father-in-law urged a stranger and instructed me to deceive her. Although she hated her mother, she was overwhelmed by the unbearable pleasure and seemed to have reached a height of supremacy many times. I hailed, but couldn't keep an eye on the sight. That night, when I managed to do some work, I checked that my father-in-law was sleeping and asked my mother about the daytime. My mother seemed to be drunk, and I'm sorry for saying that she was such a mother. I hugged my mother for not doing such a thing. Then my mother kissed me and gently put her hand between my crotch, bewildering me to make me feel better.