You had never seen your step-mother act this way before. Dress this way. Or… speak this way. Like a slut. You watched her prepare for her date through the door, snapping a garter into place while she talked to the other man on the phone. He asked her to slip her hand down into her panties… no, the panties HE made her wear. She moaned like you had never heard, and began rubbing her pussy furiously.