She Came From Outer Space

Octavia is sent to the ground alone to test it, but is taken in by a grounder chieftian who has no idea what to do with her. So of course, he marries her. But what happens when the drop ship comes down a year and a half later, carrying none other than Bellamy Blake? How will her husband and her brother get along as another army converges on all of them. rated T for mild fun.