How many movies have Katsuji Oyamada and Nene Mochizuki collaborated on?

They have worked on 2 movies together! Their first movie together was Hentai niku nure vibe (2000) while their highest rated movie together was Whore Hospital 4: No-Pants Nursing (2001). They have not worked together since Whore Hospital 4: No-Pants Nursing (2001).