Plot points:1)Xander centric
2)Xander is paired with whoever dresses as the avatar for the main paring.
3)Takes place during the Halloween spell episode.
4)Xander dresses as a captain of a ship.
5)The ship Xander is captain of appears in the solar system, but their is a way for Xander to get on the ship, be it by shuttle, fighter craft, transporter, or some other way.
6)Somebody dresses as the avatar of the ship Xander is captain of. Even if it didn't have a avatar in it's original reality/universe.
7)The captain and the Avatar are married.
8)Optional:They have a ki...