Torchwood
This is not the story I was expecting at all. It starts out with Torchwood-style mpreg, and then goes on from there in a way that I really liked. I love time travel stories that are all about characters crossing their own timelines, and working out who knows what at which point in their lives. This story completely fulfills that for me, as well as being a lovely romance between Jack and Ianto, with a great ending. Kid!fic, but of the very best kind.
Ianto’s gaze never left Jack; he watched Jack step closer as the Doctor turned, his attention following the Doctor’s gaze. His jaw dropped, his eyes went wide, and Ianto thought, I’ve been dead two hundred years, and that is what Jack looks like when he sees a ghost.