How many movies have Hitomi Shiraishi and Masato Katō collaborated on?

They have worked on 2 movies together! Their first movie together was Molester Diary: A Man Who Kept Stroking Ass 5 (1997) and was their highest rated movie together. They have not worked together since 尻を撫でまわしつづけた男 痴漢日記5 (1997).