Ive seduced my rich sisters husband into moving me in and taking part in the humiliation of his wife(my sister) and trying to impregnate me to flaunt in front of her but i need to do something more. He wants to give a good ass fucking but my ass just cant handle his thick dick so ive tied my sister up ass in the air and will have him just pretend its me we can ruin her ass and no one would care. But thats not where it stops thats just where it starts.........