I'd say it is a parody. But, regardless of the intention, the result is the same: another anime with extremely sexualized underage girls.
Also there was an interesting feminist reading of the show as the nudity being a metaphor for sexual liberation, or something like that (yes I know how I am sounding, and no, I don't intend to defend the show sexualization, as said the result is the same) but I saw it a long time ago and can't remember how this interpretation holds up.
Having said that I remember liking the show a lot, but I can (or could anyways) endure that kind of stuff.
Also there was an interesting feminist reading of the show as the nudity being a metaphor for sexual liberation, or something like that (yes I know how I am sounding, and no, I don't intend to defend the show sexualization, as said the result is the same) but I saw it a long time ago and can't remember how this interpretation holds up.
Having said that I remember liking the show a lot, but I can (or could anyways) endure that kind of stuff.