You open your plump curvy bbw stepmom's door to find her masturbating. She is really into it and moaning a bit with her eyes closed as she rubs her pussy. She looks so sexy you can't help it. You walk in the room to get a better view. You are hard and throbbing watching her touch herself. You pull out your dick. She doesn't notice at first, but she looks up for a moment and realizes what's happening. She is shocked, but she is so turned on and close to cumming she can't resist. She says fuck it and starts stroking your dick as she rubs her clit. Before long your stepmom is giving you a blowjob and she plays with herself. She lays back as she gets closer she strokes you a bit more then tells you to cum with her. As she cums you shoot your load all over her. Mmm what a nice surprise.