My mom and I did the exact same thing. I was really high and she was really sloppy drunk. When my dad went to work but came home early and had been there watching while jerking off. We had not seen or heard him. He came in while we were fucking . We both noticed him standing there but I couldn't hold back any longer. Payback because I hated him my mom and I started cumming and I shot so deep in her she came. Dad walked away leaving us spent