After my parents remarried, a much younger stepsister suddenly came into my life. She was busty and adorable—exactly my type. As a teenager eager to act mature, she teased and provoked me every day in countless ways. Gradually, her flirtatious behavior pushed my self-control to the breaking point, until one day I couldn't resist and attacked her. But to my shock, her incredible hip movements made me cum again and again helplessly.