Your step-mother put in so much work for this party and no one, not even your step-father, appreciates any of her work. You're a sweet step-son and try to console her by thanking her yourself. She knows how much you love when she rewards you for being such a good boy. "Let's sneak away from everyone for a quickie reward for my sweet step-son..." You follow her into the room, where she's ready with the BEST reward... her wet pussy!