Getting it hard for my step sister (w/Charlotte Cross)

Your step sister Charlotte needs a ride to a party. Can you give her one or not? Maybe she can make it worth your while. Don't get excited, pervert, she is not going to touch you, but she will help you to rub out a load if you promise to drive her to that party. You feel that this is a win-win situation and you get your dick out of your pants quickly. Charlotte unzips her shorts and then she asks you to get your dick hard for her. Grab your shaft nice and firm and stroke it. Twist your hand as you move it up and down your dick, but be gentle at the tip. She shows off her perky tits as she tells you what she likes to do with her boyfriend. You never realized that your step sister was such a little slut before! Her round ass looks so smooth that you wish you could bury your face in it. You know she is a slut, but she would never let you go that far. You continue to jack off and she can see that you are ready to burst.