Natsu's Experiment

by Absolute Fairy Tail Trash

A crossover with Fairy Tail and Attack on Titan. Natsu accidentally opens a portal when he experiments with Lucy's keys, and some new people come out, along with a few giant naked man-eaters. Can the two groups work together to save Fiore, or will their differences destroy them instead? And how does everyone plan to get back? :) All anime.

1. Chapter 1: Keys, Fire, and a Strange Kid

Hey guys! Thanks for taking the time to try to read this. Enjoy.

Disclaimer: I don't own Attack on Titan or Fairy Tail, because if I did, this would so be canon.

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It wasn't Natsu's best idea, but what the heck! He wanted to know.

So on that breezy Tuesday afternoon in the Fiore kingdom, the salmon-haired dragon slayer stood over Lucy Heartfilia. She lay napping in her bed as the Fairy Tail festival had gone till 3 am last night (or morning, depending on how you looked at it). Happy handed the blonde's keys to Natsu, and they took off.

Back at their house, Natsu cackled as he took the keys in hand. His hands lit up in flame.

Natsu had expected the explosion, but the big black glowing hole, now that was different. "Uhh, Natsu," Happy nervously commented.

"I know, I know!" Natsu started freaking out. The metallic keys lay steaming on the ground, an impression in the dragon slayer's hand. The whirling whole kept getting bigger and started sucking things in.

"Nooooo!" Happy screamed. "That was my favorite fish poster!" But that wasn't the only worry. The cat himself was getting sucked in. His white wings appeared and he grabbed onto Natsu's scarf.

Natsu ran around, picking up things, lighting them on fire, setting them down, and repeating. The worry lines were deepening as Natsu regretted his choice. "I need to fix this."

"Aye," Happy nodded. Suddenly, Natsu's scarf slipped. Happy scrambled off as the scarf flew into the hole.

But then, something appeared. It was a teenage boy. He had dark eyes, brown hair, and was wearing a tan jacket with blue and white wings on it. His white pants were wrapped in dark cord, and two silver boxes sat at his hips. One of his hands was covered in dark blood. The other held Natsu's scarf.

"Is this yours?" the boy asked, holding out the scarf.

Natsu's mouth dropped to the floor. "Natsu?" Happy asked.

The boy appeared puzzled, but handed the scarf to Natsu.

"I'm Happy. This is Natsu. You don't look like someone from here. What kind of wizard are you?" Happy directed.

The boy's eyebrows squinted. "I don't think I'm a wizard. I'm Eren Yeager."