The Curious Sofa (ISBN 0151003076, 1997 reprint) is a classic 1961 book by Edward Gorey, published under the pen name Ogdred Weary (an anagram). The book is a "pornographic illustrated story about furniture" (according to the cover). According to reviews, there is nothing overtly sexual in the illustrations, although innuendos (and strategically deployed urns and tree branches) abound. The New York Times Book Review described it as "Gorey’s naughty, hilarious travesty of lust". Gorey has stated that he intended to satirise Story of O.
The story may also be found in Gorey's book Amphigorey (1972, ISBN 0-399-50433-8).