STEPDADDY has a bad back - but I got his back!

Oh man, when I see stepdaddy lying there with his bad back problems right now, I can't help but want to do something good for him! My goal is to make him forget his bad back for a while and make him feel something more pleasurable instead. He can hardly move at all, but he doesn't have to because I'll do that part! As a good stepdaughter, I'll take care of him today and ride his cock in several positions so horny that he won't even notice his stupid back anymore! Do you think I was successful in my mission?