As long as they're only describing the act in text it's legal. If there are photos, it's obviously right out. If there are illustrations, then the courts haven't definitely settled the question last I heard.
Not necessarily. Remember that pedophilia book that got Amazon some flack? A rogue sheriff in Florida had one of his deputies buy the hard copy and then arrest the writer for "distribution of obscene material depicting minors engaged in harmful conduct". Horrible precedent for several reasons.
True, but that case has yet to be settled. Either way as far as I know the US government has made no move to ban the book, and even if they do get a conviction it will be under local laws and not federal laws.
