My older sister, who is planning to become a new mother after my father remarried, is a subordinate at my father's company and is only two years older than me.Before her marriage, when her father was away from home for a few days on a business trip, my older sister was assigned to take care of me as a bride-to-be.The older sister who became her mother was very beautiful and had beautiful legs.When such an older sister wears a miniskirt and does housework, I secretly take pictures of her panty shots and secretly masturbate.After my act was found out, my older sister started provoking me.However, such an older sister provokes me and makes me erect, but she doesn't make me cum.