A regular training program increases the strength and endurance of her anal sphincter muscles for maximum stimulation. Strict bondage decreases the chance for injury during the procedure. The neck strap is to control panic attacks and maintain proper body posture. Bare handed ass slapping prepares her mentally for anal penetration by causing her pituitary to release opiates. Her eyeballs follow the movement of the digital penetrant and her mouth mimics the opening of her anus as she is dilated and stretched.