@Remus2
Any scenario you choose can be written. The only real limitations are based in the limits of your imagination.
That's quite stating the obvious. My only problem is that I don't speak English at all, lol.
So what I do here is trying to infect someone with weird mind virus resulting in incorporating support for my obscure kink in their own work.
Indeed, what I propose here isn't any definitive scenario, just a kink angle that could be included in, indeed, just any other story, the mundane the better.
Perhaps, it could be approached as excercise in obfuscation.
Such as, continuing the NiS theme, girl is in school, talking to her friends, having a fight with her boyfriend, discussing projects with teachers, whatever. Then, the day ends, she goes out, take her clothes from the NiS box, and puts on. Until then, it wasn't explicitly stated she's naked, or there's NiS Program taking place, but looking back, she's actually not the only one naked either, and certain interactions make way more sense.
Or, it's extended family party/picnic. Most everyone's else clothes are described (perhaps many not exactly favorably either). Besides uncle Ben's seemingly uncalled for rude comments nobody seems to care or give out her state of dress. Her boyfriend arrives, and try to talk her into a date. Despite protests of some of her family, she eventually agree. Then it is the boyfriend who suggests that she, just maybe, should put some clothes on going to the theater. Maybe she indeed does so, something reluctantly, but accepting the stupid rules of society. Or perhaps, "Nah, it's legal now, isn't it?" Is the answer, turns out she's religious nudist. Well, he doesn't insist, and perhaps even express his delight about her habits, physically, if we're so inclined (but not necessarily). The whole thing even could be from boyfriend's POV also.
Or alternatively, even just fishing for a suggestion of a story wherein something like that's done already (by rules of infinity, there must be plenty).
Nudity 24/7/365 just won't work
Of course, outside of strictly controlled environment or fantasy land. Some obsessed nudists claim to approach that in reality though, how believable such accounts and how much "obvious" caveats are ignored remains open.
But in this context, it isn't needed at all. It can be entirely situational, the nudity lasting just hours or even mere minutes, just that it's the starting condition hinted but not explicitly revealed until later.