Now, if all you're looking for is very simple branching (and very silly humor), try this:
DOWN TO THE SCUM QUARTER
A Choose Your Own but Get Someone Else's Adventure by Garth Nix
http://members.ozemail.com.au/~garthnix/Warning.html
This is the HTML format, with links. A printed version with page numbers is available in Nix's book "Across the Wall: Tales of the Old Kingdom and Elsewhere," highly recommended.