Charlotte Sins - Blackmailing my Secret Slut Step-Sister

My parents think my step-sister Charlotte is so wholesome, but it's more like "whoresome" One of my buddies went for a little rub and tug at a happy ending massage parlor and guess what? Yeah, my step-sister jerked him dry for like a $50 tip. I'm not surprised she has always loved to get her hands on a cock, I know she's checked out my package when I freeball in some loose shorts. Well my boy talked up how great this tall freckled blonde chick was at handling his hard-on, and he had has phone half hidden under his clothes recording it, so, now I have leverage. I know she is going to be really pissed at first, but I am betting when she sees my thick cock the slut inside her will take over.