My first fic in the Pokémon fandom, and it's for Hey You Pikachu! of all things. But I also haven't been keeping up with the newer games, so there's not much I can say about those.

You had seen Pikachu throwing them before.

You couldn't quite see what they were, but every so often, Pikachu would just start throwing little yellow objects that he seemed to pull out of nowhere.

Infinitely curious as to what these things were, you decided to try to catch one. Thankfully, Pikachu often threw more than one of them, so when one finally came whizzing by your head, you didn't hesitate to catch it. Your fingers closed around the ball-like object, and you felt an odd sense of triumph.

Pikachu didn't notice, and went back to rummaging through the garden.

Satisfied that Pikachu wasn't immediately going to snatch it from your hands like he did with everything else, you decided to inspect what you'd just caught more closely, only to gag as a pungent odor hit you with the force of a tidal wave. You held the offending object out at arm's length.

It smelled absolutely horrific. It smelled overwhelmingly of Pikachu and... something else. You didn't think you wanted to know what that 'something else' was.

It looked and felt a bit like a tennis ball, though a bit softer and squishier. It was yellow with a thick brown stripe, and was covered in a slight fuzz.

Something about it disturbed you, almost like you were holding a piece of Pikachu himself. You looked over at him in concern. But no, Pikachu continued to run across the garden without a care in the world.

You turned your attention back to the ball. So what was this thing?

Slowly, you walked over to Pikachu. "Hey, Pikachu? What is this?" you asked.

Pikachu looked up upon hearing your voice, eyes filled with curiosity. His eyes panned down to see what you were holding, and his expression darkened.

...

That was the last thing you remember after having woken up sprawled out on the ground, feeling like you were hit by a truck.

Or lightning.

You groaned as you sat up, a little woozy.

The ball was gone.

You tried looking for it, but there was no sign of it. It very well could have been vaporized.

You glared at Pikachu, who was paying no mind to you. He was just walking along, holding a carrot that he had no doubt picked up from the garden and humming a cheery tune. He was seemingly unconcerned with the fact that you had just been zapped to within an inch of your life.

Did Pikachu have no empathy? Was he secretly a psychopath?

Good god, and you share a bed with this creature. You'll probably be dead by morning.

Pikachu, meanwhile, was off somewhere eating a balloon.

I actually couldn't find any details about this particular object online, so I had to find an N64 emulator with mic support (Simple64) to figure out what the item was:

yellow ball
A yellow ball of unknown origin
"What on earth is this?"

It wasn't particularly informative. :P