User blog comment:Miskos3/Fairy Tail 544: You're the King, Review/@comment-71.167.17.231-20170715102434/@comment-7418318-20170721220705

A magic that allows two women to have a baby together still makes more sense than Erza smashing a giant meteor and slashing a Dragon while having the majority of her bones shattered and said Dragon committing suicide out of nowhere right after...

They could just adopt Natsu and Happy as their children. Both are just big babies to begin with and would greatly benefit from some proper parenting being done to them. :P