The room fills with the sound of wet, sloppy kisses and Penny's throaty moans as she face-sits her brother, her thighs quivering with exertion and pleasure. Sam's face is slick with her juices, his tongue darting out to lap at her clit, his nose buried in her folds. Penny's breath comes in ragged gasps, her tits heaving as she rides his face, chasing her orgasm. Suddenly, she pulls away, panting, leaving Sam gasping and disoriented, his face a mess of spit and cum. "Not so mean now, are you, brother?" she taunts, before pushing him down and starting all over again.