Blackmailing Step-Sister To Suck Your Cock

You have dirt on your slutty little step-sister and you're going to tell everyone unless she gives you exactly what you want. And what do you want? The only thing she's good at, of course. You want her to show you those amazing blowjob skills you always hear about from your friends. Why shouldn't you be able to experience what everyone else is experiencing, after all, she IS your step-sister. Family is Family, and Family shares. Maybe she'll actually be into it and this can become a regular thing for the two of you. Maybe not... but either way you're getting what you want because she doesn't want you to ruin her life.