You spy on me. You watch me slowly undress. You always have. Staring at my sexy curves, your cock grows hard inside those pants. But this time, I catch you, standing there, watching me in the bath tub. At first I am angry and threaten to tell Step-Mom and Step-Dad. But this time I humiliate you. I make you show me your hard cock as I laugh, and you to look at me and jerk off in front of me. Jerking off to your own step-sister? Pathetic. Laughable. I'm going to tell Step-Mom and Step-Dad unless you do exactly as I say. Don't try to run, you can't anyway. Your horny member won't let you, will it? Will you even cum? Oh yes you will, when I count-down from 10....