AU? Prequel? Whatever! Noctis is the King, everything's pretty alright, and he has a very awesome relationship with Ignis, but they're both pretty aware that the royal line needs to continue and they need some baby making for that.

Cue a third person who can help with that part of the equation. Could be Luna, Iris, Aranea, Ravus (idk make it work). I'd prefer it not be Prompto or Gladio, but mpreg is fine. Ignis fucking Noct while he fucks the other partner is love, but do what you feel. Consensual please.

Bonus: dirty talk?