This is pornography pure and simple, but the authors are attempting to make it a force for good. The book has a "free love" style ethos and may test your open mindedness. The art is deliberately old-fashioned and full of period elements.
Besides simply being yet another brillian piece by Alan Moore, this is just a remarkable idea. Wendy (from Peter Pan), Dorothy (Wizard of Oz) and Alice (..In Wonderland) meet at a hotel at they all realize that each of their "stories" really is repression of their first sexual encounters.