Started with sister when I was 12. Mom caught us many times and said it was ok as she did the same with her brothers. Sister was 2 years older and went to college at 19. Began s** with Mom until I finished college and sister got married. Divorced 2.5 years later. Sister moved in with me after Mom died. Moved together to southwest and I changed my name but not legal. Been together as married for 14 years. 1 daughter and 2 sons. All good and healthy.