How many movies have Genji Nakamura and Tadashi Yoyogi collaborated on?

They have worked on 5 movies together! Their first movie together was Hentai-shiatsu-shi: Shikiyoku no kyôen (1971) while their highest rated movie together was Kanzen naru dôseiai (1972). They have not worked together since OL chijo shimai: Uwa-kuchibiru shita-kuchibiru (1978).