Step-Mommy walks in on you jerking off! She looves watching a man jerk off so she's almost instantly turned on even though it's obviously taboo in this situation. She says step-daddy won't be home for a while, so she asks if you'd like step-mommy to help you. She strokes your hard cock, and asks you to jerk off while she watches. You're shy about it but very turned on so you do it and step-mommy starts to masturbate too. But it's not enough, step-mommy's pussy is aching for your penis and she begs you to get on top of her and cum in her!