Ten years ago, when I married my husband, I also became the mother of his son from a previous marriage. I was worried if I could get along with him, but we lived happily together. However, I had been sexless with my husband for years and was deeply unsatisfied. One day, my husband bought a balance ball. When I invited my son to exercise with me on the balance ball, he got excited. My son started massaging my ass. I tried to resist and run away, but he pinned me down...
