The Gray's anatomy - Rachel Armstrong

It is fiction. Science Fiction. About the human race some time off in the future being put under scrutiny by a very superior bunch of aliens who are cold hearted and cruel, obsessed with surveillance technology and none to keen on mess, nor the sensual and erotic. Some of the greys become very taken by earthlings. They find our bodies to be interesting, our emotions and hang-ups charming. They like the way we procreate, and get into the human sex thing in a very big way. Weird hybrids result. Interstellar emotional chaos breaks out. The ruling Grays come to view Earthlings as viral, like a bad dose of something that needs rooting out. A Star Chamber is convened, and the renegade Grays who love the earthlings are called to argue in their defense.