Making reluctant step-mom cum

Step only used in description, taboo language used throughout with reluctant scenes. My step-son walks in on my watching step-mom/step-son porn, I am so shocked and cover myself up. My step-son is clearly turned on and gets his dick out. I am only wearing stockings and heels; he pulls me onto his cock in missionary, staring into my eyes. I tell him how we shouldn't be doing this and how wrong this is. He makes me use my vibrator on myself and I cum so hard while his dick is inside of me!