>>92182787It might make more sense to frame it in context of "The audience sees different than the characters"
To Ashi it just looks like a fish, which is weird and silly, adding to a sense of "awkward first date" which that scene was clearly going for
To the audience it says "THIS IS CLEARLY A VAGINA. SEX IS GONNA HAPPEN IN THIS EPISODE."
It's an important start of the episode signal to let the audience mentally prep for what's about to happen so it doesn't look forced