Big Sis Bonnie and Little Brother Ash

So I had this idea for while since I seen Display-This-Anyway's images of an age regressed Ash being taken care by Bonnie like here-


So I decided to go full circle and have Bonnie age up to a young teen to take care of her new "little brother" Ash so think of it of Ash and Bonnie swapping ages and Bonnie now being the big responsible sister for Ash who is now a little kid and too young to go on a Pokemon journey.

So how they swapped in the first place... Maybe Team Rocket trying to make Ash too young to be a Pokemon trainer or maybe one of Clemont's devices going haywire and causing Ash and Bonnie to swap ages.

PS. I was thinking about adding a younger version of Serena to the pic for a bit of Amourshipping but if you guys want something like either in story or image format like me know in the comments below.