You stand hidden in the doorway, watching your dominant foster mom, Kelly, vigorously your submissive other foster mom, Ally, with her strap-on, mesmerized by the sight of Kelly's phat ass bouncing with every powerful thrust. Kelly notices your presence and, without stopping her relentless pounding on a moaning Ally, acknowledges you with a predatory smile and invites you to join them, stating that at nineteen, you're an adult who can do more than just watch. When you remain frozen, preferring to observe, Kelly chuckles and offers you a better seat on the edge of the bed, promising an even more intimate view of her ass while she continues to her wife.