Perhaps through the two sex scenes of Fumi and Sakura, Airi wants to build up the climax at the last minute, like these two situations will show whether the two men accept re-evaluating the relationships they currently have. Will Shinobu be able to stop filming and clearly discuss his feelings with Fumi? Does the Playboy want to keep Sakura by his side to the point of accepting that she will be doing more sex scenes from now on? If the two couples still stay together, I think the Playboy will suffer mental torture for a long time because his girlfriend keeps being intimate with other men, while ShiFumi is simpler since Fumi will obviously return to being an assistant director as usual after the movie with that explicit scene wraps up.