Your stepsister Sydney walks into your room complaining about her classes. She has a lot of school work to do. You remind her of your arrangement. And of course you'll hold up your end of the bargain. As long as she keeps giving you blow jobs on demand, you'll happily do all of her homework. You admire Sydney's ass as she pulls down her pants. And without any hesitation she gets to work. Licking your balls and the inside of your thighs and slowly working her way up to your dick. You're pretty lucky to have a stepsister as hot as Sydney who's ready to make deals like this.