Oh hey little step-brother. I was just taking a look through your laptop, and guess what I found? Evidence that you're a total pervert for your step-sister. You've been spying on me in the shower and in my bedroom, taking pervy little pics, and then jerking off to them. You can't deny it. I have the proof right here. Maybe I'll just go tell step-mom and step-dad all about what a little freak you are for your own step-sister... What's that? You'll do anything if I keep your dirty secret?  OK, pervy little step-brother. I won't tell -- as long as you do whatever I tell you to do. Now strip. Show me your cock. You've seen me naked, so it's only fair that I see what you're hiding under your pants. Let big sis take a good look at your cock. Haha, you have a boner! Is this turning you on? You're even pervier than I thought! Start playing with that cock, little step-brother. I know you were masturbating when you were spying on me, so it's time for some retribution. Jerk that dick. I want to watch you cum hard for your big step-sister.