The woman remains completely still, body frozen in place with her legs locked up and arms restrained. Only the pink dildo moves as the machine steadily thrusts it in and out of her tight anus. Her eyes stay wide and her mouth stays open in a continuous excited scream. The machine fucks her ass with steady rhythmic strokes while she lies motionless. Smooth realistic motion, no camera movement, focus on the dildo penetrating her ass. Ensure vagina and anus do not morph into one