Hello readers! This is my first ever Thor fanfic but I've fallen in love with the brother's bromance after I watched both films. I hope you enjoy it but I must warn you that some chapters will be angsty and sad. Loki is 15 nearly 16 years old and Thor is almost 18. Sif and the warriors three are around the same age as Thor.

Disclaimer: I own nothing but I wish I did :(

Chapter 1

It was almost silent, like the trees ruffling in the wind. But Loki still heard it. Thinking that it was just Volstagg having a midnight feast, he rolled his eyes and tried to go back to sleep.

BANG!

Now that was no ruffling tree in the wind. Loki's eyes snapped open and he jumped out of bed. He grabbed two daggers his drawer and made his way to Thor's room. "Thor," He whispered, walking towards the sleeping figure.

"Thor, get up." He said a little louder, earning a grumpy moan from his brother.

"I thought I told you not to bother me about your nightmares." Thor said as he glared into the darkness.

"I didn't have a nightmare." Loki replied, almost glad that Thor couldn't see the anger in his eyes.

"Then what is it? I'm not in the mood for midnight chats." The older boy said lazily.

"I think there's someone downstairs." Loki answered.

"Are you sure it's not Volstagg?" Thor asked, annoyed.

BANG!

"Judging by the noise downstairs, if it was, he might be being murdered." The younger God said, knowing that will get his brother out of bed. Thor sighed angrily before grabbing his sword and leading Loki downstairs. They followed the noise all the way to the Weapons vault.

The two permanent guards were unconscious and the locked door had been blasted open. Thor stepped forward and touched the ice that was building up on the broken door hinge. He looked at his younger brother, eyes wide. "Jotuns…What are they doing here?" He asked.

"The casket. Why else?" Loki ran past Thor and into the Vault but immediately stopped.

Right in front of him was a towering frost giant. He glared down at the boy as if daring him to fight. Thor pushed his younger brother behind him, his grip on his sword tightening. Sure, Loki was brave but he couldn't fight. A Jotun would kill him instantly. There was a crackling sound and the frost giant's arm began to freeze over with a deadly layer of ice.

"Go hide, brother. I'll take care of this monster." Thor whispered to his brother.

"No way, I'm staying here." Loki replied stubbornly.

"I'm not arguing with you, now get out of here." Thor glared at him. Loki rolled his eyes and hid behind a pillar, while Thor pointed his sword at the Jotun.

They lunged at each other with battle cries and their weapons clashed. Thor slid between the frost giant's legs and slashed at his legs, before jumping up and slicing through his blue back. The Jotun whipped around and slashed his blade at Thor, scratching his shoulder. Thor retaliated by creating a gash on the Jotun's side. The frost giant held the wound and stumbled before catching himself and punching Thor in the jaw. There was a sickening crack and Thor was thrown to the other side of the room, crashing into the shields as he went. But he immediately jumped up to attack the Jotun again.

Loki ran forward, just in time to catch the frost giant's fist as it aimed for Thor's chest. There was a cold sensation running through his hand and he yanked it away just in time to see a cerulean colour fade from his hand. He closed his eyes and let his magic run through him as he clenched his fist. The Jotun lifted a shaky hand to his heart as he trembled violently before falling to the ground, dead.

"What did you do?!" Thor exclaimed.

"I saved your life. Your welcome." Loki replied.

"You know that's not what I meant. How did you kill it?" Thor asked.

"With magic." Loki answered like it was the most obvious thing in all of Asgard.

"How long have you been able to…to kill things…that quickly?" The older God asked, wearily.

"For about a year." Loki replied casually, like it wasn't news to him that he was so powerful.

"If you can fight then why don't you train with me and our friends instead of retreating to the library? Why don't you show people what you can do?" Thor asked in confusion to why his brother his something so amazing.

Loki was about to answer when Odin and Frigga strode into the room. He looked at Thor's bruised face and then down at the gash in the Jotun's side before pulling his son into a hug. "You did this? My son, you shall be rewarded. You've saved all of Asgard." He praised, not even sparing a glance at his youngest son.

"Are you ok, Loki?" Frigga asked the dark haired boy.

"I'm fine." He replied.

"I would never let anything happen to my little brother." Thor said smiling.

"I don't need protecting." Loki snapped and left the room. Thor narrowed his eyes and chased after his brother.

"What is wrong with you?" He asked with concern.

"I wish everyone would stop treating me like I can't look after myself." Loki looked at Thor, his green eyes seeming to stare into his soul.

"Then why didn't you tell father that it was you who killed the Jotun?" Thor replied.

"Like you and Odin gave me the chance. He wouldn't believe me anyway, he'd think it was petty of me to ruin your moment of glory." The younger boy answered, still glaring at his brother.

"If you showed people what you could do, then he would believe you. Why do you have to hide it?" Thor asked, angry at how stubborn his brother was.

"Because I don't want to end up like you." With that, Loki ran. Not to his room, not to the library, he just had to get away. Thor wouldn't understand how different he was. He'd used his magic in training before but they called him a coward, a cheat. Magic wasn't glorified like sword-fighting was, neither were long distance weapons. He knew how to fight, though. When was it cowardly to want peace?

Loki didn't know where he ended up or how long he ran for. This part of the castle was dark and cold enough to unnerve anyone but Loki liked the silence, the seclusion. He sat down, leaning on the wall behind him. Conjuring a book, he began to read.

How was it? Good, bad, confusing? This is my first Thor fanfic so please tell me if I'm doing anything wrong. I really shouldn't be posting this yet but I have major writer's block on all three of my stories so yeah. Please review, they light up my day! See ya soon!