Twilight "alicorn" Sparkle has to do some daily chores as a princess. However, those things will have to wait - she finds an unusual pet on the streets while walking home. Twilight decides to bring this pet as her own.
A few days after the find, more unusual pets are found on the streets; ones with long, sharp claws, ones with beads in their hair and some are just giant, green snakes! Then Twilight finds out these pets can do amazing moves.

(If this was already made into a story, don't blame me. I had no idea about the idea being made if it was already.)
(A crossover with Pokémon and My Little Pony. May include chapters for each time she finds each Pokémon, leading to thousands of chapters. Also includes info about Pokémon X and Y.)