Shiraishi Makoto is challenging herself with her first documentary-style endurance intense piston work. Despite being bewildered by the constant appearance of penises, she exclaims, "More... thrust deeper into my vagina...!!" Engaging in an athlete's bold and beast-like high-tension sex, she clings to the manhood, indulging in an extremely lewd play! Even as she sweats profusely and shakes her large breasts, barely maintaining her sanity, she sinks into the pleasure of over 10,000 intense piston sexual encounters...
