In case you're not a Pokémon fan or haven't played many games, one interesting thing is that you can take them to a place to breed, and there's a Pokémon that's perfect for that: Ditto.

A Pokémon capable of transforming into any Pokémon. Basically, you're essentially prostituting Ditto so it can have with all the Pokémon you put there (even though they lay eggs for some reason, it doesn't matter).

What if I used one of those books Jai made so Ditto could transform into any Pokémon that looks attractive? And what if they all had more exaggerated features? For example, a more voluptuous Mewscara or a more muscular Aggron.

That would be a good idea. Unfortunately, I don't know how it's done or how it works, but the idea is there.