I think it does not make any difference.And for me is not real sex but Airi made this angle just to make a shocking pannel to end the story.
dude he went out of his way to take the camera from the actual guy responsible for it.
"No, mainstream actors cannot have real sex in movies under U.S. industry rules. For union productions, the actors' labor union, SAG-AFTRA, strictly bans unsimulated sexual acts, requiring physical barriers and simulation."
i know this is hard to process but japan releases unsimulated sex movies all the time, they present a story and then there's sex too (real), like nothing. They're not that popular, and there's more acting than sex but they're released on limited runs on theaters all over japan.
there are some more mainstream like "antiporno" , "Aroused by Gymnopedies", "Dawn of the Felines", "Homejack Lockdown" and more.
a few years ago they were really popular to the point that one of the girls from KAMEN RIDER FAIZ (555) did a lesbian scene unsimulated with dildos lol. Of course there are many more simulated that not but you get the point, don't you?