How many movies have Jung In and Si Hoo acted in together?

They have worked on 9 movies together! Their first movie together was 18 Year Old Actress So-jeong's Ultimate Sex (2020) while their highest rated movie together was 18 Year Old Adult Actress Lee Soo's Sex Fantasy (2021). They have not worked together since 18 Year Old Adult Actress Lee Soo's Sex Fantasy (2021). They are most known for their romance films together.