Venus Plus X — Theodore Sturgeon

Charlie Johns is living a relatively quiet life in New York City when suddenly, someone snatches him from 61 North 34th Street and delivers him to the strange, future world of Ledom. In this world, technology has triumphed over hunger, overpopulation and pollution -- and gender is a thing of the past. In Venus Plus X, Charlie must decide if a world in which there is no preoccupation with sex is truly a utopia.