Hey Neko here, this is my first story and I hope you like it. I will post the other chapters later on if anyone enjoys this but yeah, have fun :)
Disclaimer, I do not own Fullmetal alchemist

A mother and her two children were walking through some markets on a Sunday, the sun shining on a cloudless sky as if tempting them to find comfort in the shade.

"Mummy, it's so hot, can i go get ice-cream for Al and I back at that store we passed a few minutes ago?" 5-year-old Edward asked his mother.

"Of course you can hon" she replied, feeling slightly bad for dragging them out in the heat, but she knew they enjoyed the Sunday markets just as much as she did. She handed him 20 cenz and told him not to take too long and that they would be inside a small children's store just up ahead, looking at toys for Al.

Ed took the money and ran off, full of energy, his golden hair bouncing slightly as he ran. He ran past several stores selling jewellery, clothes, fruit and such until he was walking past a dirt path leading into the forest and noticed a young man, probably in his twenties with long black hair lying down under a tree. Worried for the man who could possibly be injured, Ed ran up to him and shook him. Big mistake, the man grabbed him and held his hand over his mouth, dragging him a little further into the forest and into a clearing surrounded by trees, before letting him go.

Ed was about to turn on his heel and run for the hills when he noticed the man holding some strange kind of stick in his hands which he could feel power surging from, his time practicing alchemy helping him notice this.

Curiosity won over and he asked, "what's that?" Whilst pointing at the strange object.

"Hm, this? Well, I-I could show you" the man had a surprisingly high voice for someone his age, as if he was anxious, which he might've been. Ed nodded slightly and before he could say anything, the man pointed it at him, startling Ed, and muttered a few words. Ed felt a weird tingling sensation go through him and shivered, then it was over. He felt slightly dizzy so he sat down on a rotted log and waited for the dizziness to pass.

Once the dizzy spell had passed, he looked up at the man confused, who was looking at him thoughtfully, before he said, "hmm, not bad for a first try, but to beat those other darn sorcerers in the tournament I need it to work properly" then he must've suddenly realised something, because he looked at the ground and muttered, "oh no, w-what've I done, poor child will be harassed and ridiculed, if not downright murdered, I-I need to try and help" he looked back at Ed, who was still confused, before pointing the wand at him yet again, and muttered some more strange words, causing the tingling sensation to spread through his body again. He was glad he had already sat down or he would have fallen over from the dizziness it caused.

"Okay, now child, all you need to do is think that those ears of yours are human, and they will stay that way until you wish otherwise, but only if you wish. Of course, the words should be spoken, since thinking it would obviously expose you, but I can't change that tail or your teeth, so just stuff the tail in your pants and I doubt anyone will notice a change in your teeth since they were quite sharp to begin with" the man nervously wiped his hands on his pants, definitely anxious, before gesturing to Ed to try it.

Confused, Ed looked down and noticed he had grown a white, fuzzy tail, a few pats on his head confirmed he also had wolf ears, which he also assumed were white, he gasped in surprise, trying not to scream since that would cause attention before he remembered the man's words and said out loud, "I wish for human ears" feeling a little silly whilst doing so.

The man looked excited, though, clapping as if he had just discovered the cure for cancer before he said, "Alright, you should be good now, stuff that tail in your pants and don't forget what I said, you can only change your ears by wishing out loud, don't tell ANYONE, or else they would kill you. Poor child, I am really sorry for this, but i have to go. Be careful" was all he said before he disappeared with a poof.

Ed stood there for a few seconds in shock, before he realised his mum would start worrying if he wasn't back soon, so stuffing his tail into his pants as quickly as humanly, or chimera-ly, possible he raced towards the ice-cream stand and bought two ice-creams and walked as fast as he could to the toy store, so he didn't drop the desserts.

"Why did you take so long Ed? I was starting to worry" his mother said to him as he met them outside the store and handed young Al his ice-cream, who took it gratefully and starting licking it immediately.

"There was a line when I got there, so I had to wait for a little, sorry mum" he made up an excuse before hugging his mum, the whole ordeal making him slightly upset he couldn't tell her. She hugged him back, unaware of what her child had gone through before they continued through the markets, one of them now not quite completely human.

As the years passed, Ed had become adept at hiding his not so human half, no one ever questioned the teeth anyway. But he always wondered what would happen if they ever discovered his secret. He had heard about human chimeras through his books and knew they would be sent to the higher ups for experimentation, so he never told anyone, although nightmares about people finding out haunted him almost nightly.

So he kept his wolf half hidden and grew up as a normal child, that is, until his mother died and he joined central, people apart from his family began to care about him and he knew they could never find out or he would never be able to deal with the rejection.