Carnageland — David W. Barbee

Alien invaders. They want your planet, they want your money, and they won't stop until they have it all. Invader 898 is about to embark on his first assignment, but when he is sent to a backwoods planet on the far side of the universe, he's stranded with millions of fairy tale whores, pornographic fables, and magical hermaphrodites. Armed only with his Doomshooter and the strange singing trumpet betwixt his legs, 898 must complete his mission while resisting the temptations of the fantasy creatures. For an invader, victory means promotion and failure means the pink slip of death. Carnageland is a perverted odyssey of sci-fi and fantasy, shaken and stirred so that only one may emerge alive.