How many movies have Biba Gonzo and 山岸琴音 collaborated on?

They have worked on 1 movie together! Their first movie together was 「そんなに私のおっぱいが気になるの？」家庭教師にやってきた近所の巨乳奥さんに勃起してしまった僕はムラムラして勉強ができない (2018) and was their highest rated movie together. They have not worked together since 「そんなに私のおっぱいが気になるの？」家庭教師にやってきた近所の巨乳奥さんに勃起してしまった僕はムラムラして勉強ができない (2018).