Jacking it to my styvsyster Emily Austin

Your stepsister Emily saunters into the house at 7 AM and you catch her. You note that her friend's step-dad is the one who dropped her off, but Emily has an excuse. He is going to leave his wife for her, so it is all good. In order for you to keep her secret, you tell her that she has to jerk you off. Emily tells you no, but she does finally agree to it because she knows that there is no other way. She takes you to her room and she removes her boots. She is disgusted, but she knows that she has to do something. How about if she gets naked for you while you jerk yourself off? That way, you both get what you want. You get an orgasm watching your sexy stepsister and she gets your silence.