Ron does a great job in this post explaining the difference between Bacchanal and Penthouse Letters.* I believe it was 'Anyway' that pointed me at it.
* (Note to younger readers: a long time ago, before the world wide web, people had to buy magazines to look at naked people and read naughty stories. Yes, it was a dark age. Thank us oldsters that we invented the internet so you didn't have to worry about that, you can go out and try to hook up with hot babes on myspace by text messaging them with a cellphone, or whatever the hell kids do these days.)