Malinda Lo: Inheritance

As any good sequel should, Inheritance resolves the threads left hanging at the end of Lo's previous novel, Adaptation.

Now that the presence of aliens on Earth has been revealed, the Imrians come forward and we learn why they are on Earth, and what they have been doing. Reese and David face massive media attention and government scrutiny over their experience with both secretive government organisations and the mysterious aliens. And they must come to terms with the changes in their personal lives and relationships brought about by Reese's attraction to the alien Amber.

Satisfying at many levels, not the least being the willingness of both Reese and David to explore more fluid understandings of sexuality and relationship.