My idea is based on the New Perspective fanfics If you don't know what the New Perspective series is it's a series of fanfics where Pokemon rule the world and they treat the trainers like little kids and infant
https://www.fanfiction.net/community...iverse/125201/
My idea involves Serena being adopted by a Delphox who is actually Serena's Braixen evolved and Delphox adopts Serena to pay her back for being a nice trainer and decides to make Serena her baby despite Serena's protests
Also another idea i had for this was the Showcases Serena would enter could now be changed to baby pageant type of things where the parent Pokemon enter there babies in to and Delphox would enter Serena in them.
One last idea i have to add to this is maybe when Serena is at a daycare she'd run into her rival Miette who'd be treated like a toddler in pull ups and she'd tease Serena over being in diapers.
I'd like to be Serena if your interested you can be Delphox also if you want to be other Pokemon i was thinking Delphox could be married or have kids who'd act as Serena's older siblings.
And you can be Miette if you want to do the idea i had for her.