In a world where plumbing reigns supreme, Birdo, the horny futanari, finds solace in her own company. With a flick of her tongue, she teases her rock-hard cock, already dripping with pre-cum. Her massive breasts heave as she strokes herself, her moans echoing through the Mushroom Kingdom's empty halls. She leans back, her plump ass sinking into the soft mushroom cap, and thrusts her hips, impaling herself on her own cock. Her eyes roll back as she chases her own orgasm, her body quivering with each thrust.