Porn movie turns mom on

When I started watching that XXX movie of my Dad's, I never dreamed that I would wind up in a XXX episode of my own--with my own mother! The film had been going about 15 minutes, the sexual action was hot and heavy, and I had become really engrossed (and aroused) when suddenly I discovered that my mother, in her robe, had appeared behind me. I grabbed for the remote control, but I fumbled it. There was Mom, looking at the TV screen where two naked MILF girls were making life really exciting for two lucky guys. I figured that the damage had been done now, so I just sat there, trying to hide my hard-on and waiting to find out what Mom was going to say.