Estella, chocolate and Pikachu actually don't mix very well.
Take it from me.
Seriously.
If you were to feed chocolate to a electric-type PoKéMON nowadays, things might get out of hand.
Feeding Pikachu chocolate was like the biggest crimes I've ever made that almost gave me a one-way ticket to juvie.
One fine morning, I was working with my book, but my Pikachu needed attention and so I petted it and gave him an Oran Berry that he absolutely enjoyed, then, continued working with my book.
But then my stomach grumbled, and so I made my way to the fridge and saw a fresh, unopened, cold, Cadbury Dairy Milk, and I was literally in heaven for a couple of seconds.
I opened it, but Pikachu went curious and sniffed it from afar. I found it weird at first but then I shrugged it off and I went back to my phone to work with my book.
I placed my chocolate bar beside me on a small plate, but Pikachu was still curious about it. And so, not minding and overlooking the situation, I gave him a piece.
He chewed on it cautiously, but when he gulped it. . . Hell blossomed from deep below. A town-wide electric spike happened when Pikachu let loose the largest ray of yellow thunder into the sky!
And then, because of the rarity of electric PoKéMON in our community, I was the only one who had one. Naturally, I said my and sorry's and I swore never to give him a chocolate bar. . .ever again.
Please, never feed him chocolate. . ,