Unexpected punishment step-mom step-son taboo role play

Step-Mom comes to check on you after her and step-dad had just been out on a date and left you home alone. She comes into your room and sees you trying to hide under the blanket, slightly embarrassed. She is not exactly sure what she just walked in on, but it becomes quite obvious as she notices your dirty napkins. Step-Mom is pissed. You know the house rules, you know step-mom and dads’ rules. Nothing sexual should be happening in this house until you are married. Step-Mom is so upset she starts scolding you and tells you how lucky you are she found you and not step-dad. She tells you to lay down. Your very confused but she is so upset you do as your told. Step-Mom pulls back on your blanket and exposes your extremely hard cock, she angrily grabs it and starts stroking it, still telling you how disappointed she is. And that she is going to show you just how unready you are for such things. She strokes your cock, rides you, fucks you, sucks you, telling you not to cum. You better not cum! Women like to be pleased and if you think your ready to be such a pervert than step-mom is going to teach you how to do it right just like she taught your step-father. When she finally allows you to cum, she makes you cum inside her and as she gets dressed, she tells you that her and your step-dad have been trying for another chilld, but it has not happened, so if you think your ready to procreate than you may as well help out the family. She confirms with you sternly…. We do not need to tell step-dad about this do we? No. She leaves the room still seemingly upset with you, did your step-mom just use you for your cum?