A big load for my step sister Marie

You are a stranger and you have just been caught in the act. Your step sister Marie does not seem to mind that you were watching her. In fact, she sometimes watches you. This nearly makes your dick explode. SHE WATCHES YOU, TOO!! Maybe you can both play with yourselves together today. She removes her pajama bottoms and asks that you start stroking your cock. Her pink, hairless pussy looks so good to you that your dick is instantly erect. Her pretty red hair also piques your interest. Her skin looks so soft and smooth and her titties seem to be perfect. Her fingers move over her pussy and she says that she sometimes thinks about you when she masturbates. Do you ever hear her doing it? You are given an invitation to watch her anytime you want, as long as you are quiet. You cannot let your parents find out what you are doing!! Marie's pussy should be wrapped around your dick, but she is your step sister and you have to draw the line somewhere.