"You talk a big game, but can you back it up?" teases the brunette stepsister, egging her brother on. He accepts the challenge, revealing his large, throbbing cock. She tries to hide her shock, instead opting for a blowjob, her small hands struggling to grip his girth. He growls in pleasure, then positions her on all fours, her ass in the air, ready for him to claim. He slams into her, making her gasp, as he pounds her in deep, satisfying strokes, his balls slapping against her wetness.