A brother and sister, bound by blood and forbidden desire, find themselves alone in their sprawling mansion. The sister, a lustful vixen with curves that won't quit, teases her younger brother mercilessly, parading around in revealing outfits. One evening, she catches him jerking off to her lingerie, and their hidden game of cat and mouse turns into a full-blown chase. She corners him, her breath hot on his neck, and whispers, "I know you want me. Let's see if you can handle it."