custom video: You have had a family games night downstairs and step-Mommy might have got a little bit carried away, you go to bed and have an early night. But just as you're drifting off step-Mommy sneaks into your room and tells you that she's feeling horny. It's at that moment you realise she thinks you're step-Dad! Too shy to say anything you let her continue, but it's not until she has your cock in her mouth that she realises your cock is too big to be your step-Dad's. You think step-Mommy is going to tell you off and go mad at you, but instead she begs you to put your cock inside of her. She hasn't had a cock this big in years, your step-Dad will never find out anyway it can just be your little "step-Mother and step-Son secret". When you're fucking, step-Mommy reveals that she is ovulating right now and begs you to get her pregnant. You can't help but to cum inside of your own step-Mother. You wake up in the morning shocked at what had unfolded the night before, it's all just a blur. Step-Mommy wakes up with no knickers on and is just as confused as you are. She comes into your room as part of her morning routine to say good morning to her perfect step-Son, and discovers her knickers on your bed. It all clicks in step-Mommy's head, and she is shocked and disappointed in herself at first. Concerned that she has not only ruined the relationship between the two of you but also she has just cheating on her husband/your step-Dad... and you have broken the law! But you remind step-Mommy about how she told you you are the best she's ever had and how desperately she wanted your cum last night, and it all comes flooding back to her. Step-Mommy can't resist you, and begs for your cum again. You'll have to be quiet though... your step-Dad's downstairs and could walk in on you both committing "i" at any given moment! *yep you guessed it - heavy use of the "i" word in this one and heavy impregnation dirty talk!