How many movies have Kyoko Nakamura and Shōji Sakai collaborated on?

They have worked on 13 movies together! Their first movie together was 獣色 (1984) while their highest rated movie together was Seifuku nusumi-dori-ma: Gekisha naburu (1990). They have not worked together since Wakaoku-sama: Futomono-biraki (1994).