Cute petite adult RIN Fujino and former teacher turned porn actress Momoka Ogawa enter a standing-doggy contest. The rule is simple: make the man ejaculate within five minutes of penetration. Both women enthusiastically warm each other up and tease the cock until it is rock hard, then the countdown begins. A spectacular four-way featuring the highly skilled Momoka becomes the main event—but can the two contestants finish their challenge in time?