A/N - Again, I am so sorry that there's not Hunk, Allura, or Pidge. I will still do oneshots for them if you request them and maybe if it get enough demand for them I'll add them to the preferences but for now I don't have enough creativity to do them. It's not that I don't love them any less, I just can't think of anything for them right now. If you want to request a oneshot for them or any of the other characters (even if they're not in the preference list) then go ahead!
Shiro-
You're Coran's niece. His mother, after having him and splitting up with his father, got married to an alien from the planet Colora and had your mother. Your mom dated Zarkon a long time before Voltron was created and get pregnant with his child, having you! Then less than a year later they broke up...
Keith-
You're Lance's twin sister, older by 12 minutes. and a prodigy by Garrison standards. You graduated from the Garrison two years early when you were 16 and went on the Kerberos mission with Shiro. As expected, you were captured by the Galra on the Kerberos mission and were turned into a gladiator but your story as a gladiator was very different from Shiro's.
Lance-
You're Keith's younger sister When Keith joined the Garrison, you came with him.
Matt-
You're Shiro's younger sister and a former teacher at the Garrison.
Kinkade-
You're Commander Iverson's niece.
Griffin-
You're the middle Holt child and the only Holt other than your mother that stayed on earth before joining the Atlas crew.