How many movies have Kyoko Naitô and Shinya Inoue collaborated on?

They have worked on 2 movies together! Their first movie together was Orgasms: Bath House Secret Techniques (1974) while their highest rated movie together was Joshidaisei: Môteru Utamaro asobi (1975). They have not worked together since Joshidaisei: Môteru Utamaro asobi (1975).