Loving the Cor/Prompto content out there so gonna throw in this one. Let me see Cor's reaction that he's gonna be a father when Prompto tells him he's pregnant and that is something Cor never expects in this lifetime. Maybe this happens in WoR setting or whatever you choose. Cor be that dotting man, always caring and loving Prompto in every step of the pregnancy.

Bonus:
-The child's name is Talcott