Lust: Four Letters. Infinite Possibilities — Geoff Ryman

What if you could have sex with anyone in the world?

The ultimate fantasy? Or a nightmare of self-discovery? Michael Blasco, a young scientist investigating what happens to the brain during the process of learning, suddenly finds himself on the other end of experimentation. On the way home from his lab one night he runs into Tony, a fitness instructor from his gym who he harbors a crush for, on the same platform waiting for the subway. When Michael imagines Tony naked, a pleasant fantasy to spice up a dull journey home, an extraordinary thing happens: Tony strips then and there on the platform and offers himself to Michael in front of all onlookers. Horrified, Michael flees. But back at his apartment, Tony reappears, as if by magic. And disappears again, when Michael wishes him away. Being a scientist, Michael recognizes an experiment when he sees one, and sets out to test the parameters of his newfound gift. In quick succession he conjures up Billie Holliday, Johnny Weismuller, Daffy Duck, Picasso, Sophia Loren, even his younger self.

The world is seemingly there for the taking. But what does Michael really desire? Mad with lust and losing all scientific objectivity, he runs the gamut of his fantasies inventing new lovers and calling up old ones, until, sated and morally bankrupt, he's forced to confront himself. What happens to the heart when it gets everything it desires?

From the renowned author of Was and 253 comes a witty, disturbing and intensely erotic fable for the modern age.