As the door creaks open, you sneak into your step-sister's room, her luscious round ass filling out those tight pantyhose, making you hard already. She sits by her vanity, brushing her long, shiny hair, oblivious to your presence. Your heart races as you slowly approach her from behind, reaching out to grab those plump cheeks. She gasps in surprise as you yank down the pantyhose, exposing her soft, bare ass to the air. With a growl, you roughly push her forward onto the vanity, spreading her legs wide. Her juicy pussy, already slick with excitement, glistens in the dim light. With a sudden thrust, you impale yourself on her wetness, filling her up with your throbbing cock. You grab her hips tightly as you pound into her from behind, feeling the pleasurable sensation of your bodies moving together in a rhythmic dance of passion.