How many movies have Ai Kayama and Karen Mifune acted in together?

They have worked on 1 movie together! Their first movie together was I'm In The Bathtub With My Super Little Devil Big Tits Little Stepsister!! And Now That I'm Getting An Erection, I'm In Big Trouble!! I Suddenly Ended Up With A New Little Stepsister, And The Thing Is, She's Got Big Tits!! (2020) and was their highest rated movie together. They have not worked together since I'm In The Bathtub With My Super Little Devil Big Tits Little Stepsister!! And Now That I'm Getting An Erection, I'm In Big Trouble!! I Suddenly Ended Up With A New Little Stepsister, And The Thing Is, She's Got Big Tits!! (2020).