Fresh from the shower, I catch my stepsister jerking off, her petite body glistening with water and desire. She blushes, trying to hide her throbbing pussy, but I'm already hard. She tentatively reaches out, wrapping her small hand around my thick cock, pumping it slowly. Her touch is electric, and I can't help but groan. She looks up at me, her eyes filled with lust and a hint of fear. We're playing with fire, but her hand feels too good to stop.