As a young lad, I always wanted to attend an all-girls boarding school, but there was always one major obstacle (some would call it a minor obstacle) standing in my way. I'm actually not the least bit obsessed with real-life girls' boarding schools anymore, but I still love the CINEMATIC ones where the girls all look to be about 20 and apparently they get expelled if they DON'T look sexy as hell in a school uniform.
This is not really some sex fetish though. I do like some softcore porn films set in boarding schools ("Vanessa", "Felicity") and some sex comedies ("Private School", "Boarding School"), but I also like straight dramas ("Picnic at Hanging Rock", "Lost and Delerious"), horror movies ("The House that Screamed", "Phenomenon"), and more innocent comedies (the British "St. Trinian's" films) even though many of them don't have shower scenes or hot girl-on-girl action (not that there's anything wrong with those things either).
Anyway, I doubt anyone will ever write a book on this subject, but I'd be up for hearing any recommendations my fellow cinephiles have. . .