As your little step-sister, I feel kinda bad for you, for not getting laid. And since you have been doing your foot bitch duties very well, I decided to give you a little treat. I tease your cock with my feet and give you an oily footjob. You're hesitant to let your own step-sister touch you this way but I know you can't resist me. Do you think you have been a good boy, good enough to earn an orgasm? We'll see about that...