BoingBoing has a good compilation of information and links regarding the not-quite-epic but pretty substantial struggle between Alan Moore's desire to use the character of Wendy from the Peter Pan stories (a still active copyright in the UK) in a sexual setting. That debate in itself is old hat, and has gone the rounds for decades whenever fan fiction becomes well written and popular enough to stand on its own.
"It presents this material in a way which is every bit as sensual and beautiful and at times, startling, as the actual sexual act itself can be. I think that was probably why we did it. The sexual imagination, which is the biggest part of sexuality, is not well served in our culture, and I really don't understand why that should be.
The only way that we can talk about or refer to sex -- we have two choices: we can either do it in grubby works of pornography that will be read by people who are desperately ashamed of what they are reading, or we can discuss sex in the clinical manner of sex manuals or The Joy of Sex. Neither of these things have got anything that I, or probably most other normal people actually associate with our sexuality."