Credit goes to MathewMii, this was a gift for JamesG.
View his post on his page
https://www.furaffinity.net/view/37511374/

Story:
Mona is the Crown Princes of TurtleReef, a giant massive kingdom on the back of a titan sized Torterra. Unlike most royal members this kitty can be mischievous and sneaky. Mona has great admiration and respect for Mercury for saving him from a band of Aggron thieves, Merc even let the cat keep a Lairon diaper since Mercury and Kimo have to give the leader to the king. Mona also enjoys playing with Kimo, Mercurys Poochpamp and partner. The cat is known to sneak away from the kingdom at times to either join Mercury by hiding in his Kimo diaper and not revealing himself until they're out of TurtleReefs borders. Mona also isn't some helpless prince since he's also a capable fighter due to some training from Juan and studying some of Mercury's movements. Mona also is constantly wearing Pamp armor to protect himself and the forger even gave it 3 different forms with Raticate being the weakest to a Pampaku form which protects Mona from diaper attacks and even gives him access to very weak versions of Pampakus 4 attacks. Though Mona doesn't wear the Pampaku hood around Mercury since it upsets him. If Mona does end up wearing the Pampaku hood too long he starts stirring up like Pampaku, though Mercury rips the hood off if he wears it too long. Kitty can also get very angry if anyone ends up wearing Mercury since kitty finds anyone wearing Mercury demeaning unless its him, Pampaku, or the King. Mona can also go Dyna max so even Mercury, Crescent, and Zazz don't mess with the cat. If Mercury, Crescent, or Zazz are not around the cat is known to do stuff on his own with his faithful butler Tai not far off. He also likes to pose as a ships figurehead when going out to sea. Mona also enjoys playing around with Crescent, but forbids him from fighting Mercury within the palace walls. The two are only allowed to fight in TurtleReefs proud arena, when two legendaries fight it out in a diaper competition, it really draws a crowd.

Relationship with Mercury and Kimo:
Mercury and Kimo saved Mona from a band of thieves, the king was overjoyed that Mona was home and befriended a Lugia since Monas ancestors had a Lugia in the royal guard. The Mercury offered the king of lifetime contract in exchange for living on the island. Mona enjoys Mercury and Kimos diaper antics which is why he sneaks off with them when they go off on an adventure. Mona also enjoys messing around with Kimo since Mona always has diapers for the pooch to nom on. Mona even stays out of sight with Kimo to avoid attention and even poke some fun at Mercury's clients.

Relationship with Crescent, James, and ShinKitsune:
Mona saw Mercury rip and tear up a party invitation for Crescents tea party since they don't get along, Mona decided to sneak off instead, after traveling to Mt. Silver, he met with the Legendary himself. The two had alot of fun since Crescent was similar to Mercury, and he really made Mona laugh at the plushie games with Shin and tried it himself. They also had their own little plushie tourneys as well as enjoyed playing some tricks on James and Shin and really admired his Pailveon. Mona wanted to have more fun with him, so he convinced Crescent to move to TurtleReef. Crescent said yes and soon all him, all 9 Shins, James, and Pailveon moved to the island kingdom. Mona wanted Crescent to live in the palace, but since Mercury lived there, he decided to move to a cave just outside an ancient temple where he studies archaeology. If Mercury's away or off on a job, He'll sneak off with Crescent in his Shin pamp to either go after bounties, or aid him in finding relics. Crescent invites for his parties and Crescent never turns down an invitation from Mona, though when he's at the palace Mona orders guards to stand down when they point spears at him.

Mona always enjoys being with Mercury and Crescent, so if Monas with them and they end up as diapers, kitty will get real mad, and you don't want to see Mona mad.

Mona belongs to JamesG
Alola Meowth belongs to Game Freak