The Sacrificial Chamber

Every mating season, the alien overlords make a selection. It is a fact of life that all humans accept. For Alex, the yearly selections are a mild annoyance. She knows she is not the physical type the creatures desire, so their eyes slide right over her. At least, they did. Something new is coming. The Supreme Overlord is participating in the selection for the first time since their arrival. And apparently, not all of the aliens have the same type.