Good son: walk in on your mom and dad
From Create Your Own Story
You sneak up and, though the view is not great, manage to make out your dad fucking your mom. After a few moments, you decide to get a better look by slowly moving yourself into a proper viewing position, and realize it's not just sex, but anal sex. Your dad is plowing your mom's ass, and she is loving it. You give a little cough to let them know you're there.
They:
