Exactly Emma, it's not like the sexual conatations of the Chamber are sitting out there for the whole world to see. They are hidden indepthly in the background and connections need to be made to other events in the novel. There is nothing wrong with that, authors have been doing that for thousands of years, infact apparently magic was around in Shakespeare's work! And they teach that in catholic schools! And they have been for hundreds of years! And if someone says that Macbeth or Romeo and Juliet don't contain sexual conatations then they are kidding theirselves.
It isn't at all perverted, it is mearly an example of the depth of literiture and you have to be pretty immature to not see that.