I got a scumbag when I saw my sister being raped by my mother's new wife.

The fifth installment of scumbag erect incest! It was only briefly when my mother found someone she liked and was happy to remarry. My beloved mother has passed away... Everything went crazy from there. My father-in-law started domestic violence against us, and he forced me to take a mixed bath with my sister. At first I tried to help. But seeing her sister being forced to give her a blowjob by her father-in-law, she got an erection... That's where I realized it. I wish I could be violated more... I wish I could get even more tainted... No! I should just fuck my sister lol