Pale, plush, and big-breasted Nami Sawaguchi enters the Standing Doggy Championship: make the male performer cum from standing rear-entry within five minutes and she wins a prize. She joins with a smile, but his rapid thrusts make her climax so hard and so often that she can barely move her hips. As she is pounded with her legs spread wide, her huge breasts bounce violently and her pussy clamps down so tightly that he cannot resist thrusting back. Can she make him finish before time runs out?