You and step-Mommy used to fuck around, but now you have a new dumb ugly girlfriend and you've been ignoring your step-mommy. I've been thinking of you every night while I touch myself, and I heard you having phone sex with your girlfriend through the wall. I've had enough, dump her and be with me. You protest that you're with her, but step-Mommy knows best. step-Mommy knows what you need. I jerk your cock getting it hard until you fall in line, then I suck it the way you need, you're step-mommy's fuck toy and you love it. I ride you until we both cum and beg you to fill step-mommy's pussy. (implied creampie). See? You don't need anyone else besides step-Mommy.