Busting a nutt for my stepmom's friend (with Mercedes Carrera)

Your step-mom sent her friend Mercedes over to check on you because you stayed home sick from college today. Mercedes thinks that you look just fine and that you are not sick, but you are just horny and that you want to stay home and jerk off. Staying home from college for being horny is unacceptable, so Mercedes is going to help you rub one out today. Just unzip your pants and show Mercedes your cock. Start stroking it. She is practically your auntie and you are nervous, but she tries to make you focus on something else: her big boobs. She has great tits and they are fine inspiration for your masturbation session. You love a round ass and Mercedes has one of those, too. You use both hands on your shaft and Mercedes asks you to focus on the head of your cock. As she watches you jack off for her, Mercedes plays with her pussy. This is a dream come true for you! Mercedes confesses to you that she loves to watch men masturbate for her.