How many movies have Hajime Kaburagi and Keiko Aikawa collaborated on?

They have worked on 16 movies together! Their first movie together was Kigeki Ijiwaru Daishougai (1971) while their highest rated movie together was Joshidaisei Sex Hôteishiki: Dôsei (1973). They have not worked together since Three Juicy Sisters: Casual Sex (1979).