Thanks to -myapplejuice for motivating me to write this story. She texted me this idea, but I already invented this one but hadn't any motivation to write it.
But here we are!

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As princess of Muspelheim, you were forced into marriage. At the age of 21, in human age, your parents decided to have an agreement with one of the remaining realms.
Your parents had an arrangement with the King and Queen of Asgard. They had offered a visit, to meet their son, Thor.
You agreed to your parents' choice, knowing they would only choose the best for you.

Later that day, you would travel through the Bifrost to Asgard where the King and Queen would wait for your arrival.
You are dressed in a long, red flame dress. The dress matches with the colour of your eyes. Your black hair was half in a loose bun and the rest was resting on your shoulders.
You walk down the stairs, to receive compliments from your parents and your maid. You shot them a humble smile.

"Are you ready, honey?" your mothers asks gently while getting a hold of your hand. You nod, "yeah, I actually am." "Let's go then," your father smiles.
     The three of you travelled through the Bifrost to Asgard, welcomes by Kind Odin and Queen Frigga. "Welcome to Asgard," Odin greets warmly. The Kings and Queens did their talking and you examined the beautiful area.

"Princess Y/N, I want you to introduce you to our son, Thor," Odin says with pride in his voice. Thor enters the room and his eyes land on you, causing him to smile.
     "My lady." Thor's deep voice filled the room as he sincerely kissed your hand. "My prince," you say, bowing slightly.
     "Thor, why don't you give her guided tour through the castle?" Frigga asks sweetly. Thor nods in response, "of course, mother. My lady?" He gestures you to walk forwards.
     You glance over your shoulder to your parents, who are smiling with pride.

Thor guides you to the library, a place you always prefer to be. You watch with amazement the giant library, "it's beautiful."
Your eyes land on a person with black, raven hair. His blue eyes crossed your scarlet red eyes. "Ah, brother. I want you to meet princess Y/N of the Muspelheim realm," Thor beams.
Loki swiftly walks over, his eyes fixed into yours. He gently gets a hold of your hand, bows lightly and softly kisses your hand. You feel his soft lips on your hand and a shiver is sent down your spine. "I am Loki, my darling."

Thor led you out of the library. You took a final glance over your shoulder, seeing Loki staring at you. Why did King Odin say Thor was his only son when Loki is Thor's brother?
"I didn't know you had a brother," you comment confused. Thor chuckles in response, "he is my brother. He's adopted." Was Loki not enough to be a prince of Asgard?
"Isn't Loki enough to be a prince of Asgard?" you ask with compassion in your voice. "He is a Prince of Asgard," Thor scowls.

"That's your hammer, right? Mjölnir?" you ask. Thor nods proudly, "Whosoever be the worthy shall have the power." You glance at Thor with a questioned look, "may I try?"
    Thor smirks and gestures with his hand towards his hammer, "be my guest." You wrap your hand around its blade. You assumed to deliver more strength than necessary.
     Thor's eyes widened in shock. "So, does that mean I'm worthy?" you giggle.

Thor took you to the dining hall for dinner. King Odin is sitting at the head of the table with Queen Frigga on his right, your father on his left with your mother next to him.
     You greet the Kings and Queens and take place next to your mother. Thor sits across you and Loki sits between Thor and Frigga.
     Everyone ate and talked. Loki had caught himself staring at you, more than once. The young Prince caught a few glimpses of the new Princess.

Halfway the evening, your parents decided to go home. You would stay a week to bond with Thor.
"See you next week, honey," your mother kisses your cheek. You smile sweetly, "see you next week, mother." "We love you so much, you know that right?" your father asks, taking you in an embrace.
"I know and I love you too."

You had your own room, near the rooms of Thor and Loki. You enter the room, noticing your clothes in the closet.
While changing into your nightdress, your thoughts wander to the other prince, Loki. There is something about him. The princess needed some fresh air and opened the door to take a stroll in the gardens.

You held up your palm as you stood near the water. A little fire lit up from your palm.
The fire disappears as you hear a snapping branch. ''Show yourself,'' you demand. To your surprise, Prince Loki stepped out of the shadows. ''Prince Loki, I didn't see you there. My apologies,'' you apologise and bow. ''No need to bow, my princess,'' he says softly, walking closer.
''What brings you here?'' he asks curiously. ''I was in a need of fresh air,'' you say, fixing your eyes into his. Your hands elegantly lay on your back. ''And what brings the Prince outside?'' ''I am no prince,'' he says in a cold manner.
''You are a prince,'' you comment calmly. ''Yet, father doesn't introduce me.'' ''Does that matter? I still found you.'' Loki finds himself lost in your scarlet red eyes, so enchanting.

''Even though I am bound to Thor, that doesn't mean I am not allowed to get to know you,'' you say, the corner of your mouth curling into a smirk. Lokie shows one of his smirks and agrees.
     ''May I take you for a walk?'' Loki asks gently, extending his hand. Loki feels like he's on fire when you accept his hand. You, on the contrary, feel cooled down by his touch.
     Loki leads you through the gardens of Asgard. ''May I ask you something?'' you ask, stopping in your tracks. Loki turns to you and nods, ''of course. Tell me.'' ''Where are you from? Thor had told me you are adopted,'' you say softly.
     Loki's expression hardened and let go of your hand. He turns around and walks away without saying anything. ''If you think you are a monster, you're wrong!'' you call after him. Loki stops in his tracks and anger builds up.

He turns around to look at you. He turns himself into his frost giant form. His eyes are bright eyes and his skin is baby blue. ''I am a monster,'' he says in a deepened voice.
You lower your hands, ''if you are a monster.'' You lift your chin and your eyes shot fire. Loki watches with an open mouth when he sees your flaming wings. ''I am one too,'' you say in a low voice. You transform back and stagger backwards. Loki swiftly walks to your side to catch you.
''You. Are. Not. A. Monster,'' you assure him. Loki cold heart melted by your flames and shot you a gentle smile. He spins you onto your feet and holds you close. You shift your eyes to his chest and back.
''As much as I want to stay like this, we should go to bed,'' you comment. You knew you couldn't fall in love with Thor's brother, you are going to marry the God of Thunder. Loki seems disappointed but he does understand, you are going to marry his brother. ''Ah, alright. Let me escort you.'' You could hear the sadness in his voice.

Loki escorts you to your room, both have your hands on your back. ''Here we are,'' he says in a soft tone. You turn to him, ''thank you for escorting me.'' Loki bows the slightest to show it's nothing, ''goodnight, princess Y/N.''
You close your eyes and wrap your arms around his neck. Loki was caught off guard and froze in his place. You notice he doesn't respond and pull back. ''Goodnight Loki,'' you mutter and enter your room, without glancing at the stunned prince.
You fell onto your bed, mentally slapping yourself for such a stupid move. You are about to marry his brother, for God's sake. Turning to stomach, you fell asleep.

The next day, you attended breakfast in silence. You paid more attention to Thor than towards Loki, which affected Loki. Thor introduced you to his friends. You weren't quite comfortable between them, they are all so tall and broad.
''Which weapon do you prefer, princess Y/N?'' Lady Sif asks, showing her sword in her shield. ''I never worked with weapons,'' you say, blushing. You held up your palm to show the fire, but Lady Sif started to talk again. ''She looks more like your brother, not a warrior.'' ''Lady Sif! I will not tolerate you talking to Princess Y/N like this! She is and will be my queen.''
Lady Sif was taken back for the moment and then scoffed. ''Don't worry, she is just jealous,'' Thor whispers. It causes you to chuckle.

Days later, you were sitting in the library, near the window. Your nose buried in a book when you felt the sofa sinking in. You glance up, expecting Thor, but you lay your eyes on Loki. You shot him a small smile and concentrate on your book.
''I want to apologise for that night,'' he starts and continues when you don't look up, ''I didn't want to create feelings for you. Not now you are about to marry my brother.'' You now glance up from your book and fix your eyes into his. ''Don't apologise,'' you whisper, ''I was afraid to develop feelings for you too. Even though I know I am going to marry Thor.''
Loki gently gets a hold of your hand, ''do you want to spend the day with me?'' You nod and smile.

Both took off to the forest. You created a fire Phoenix and it flew around without affecting any trees. Loki created a snake made of water.
You changed the Phoenix into a snake and both snakes are twirling around each other. Fire and water, perfectly balanced. As it should be.
"Did you know that I'm able to pick up Mjölnir?" you giggle. "Really?" Loki chuckles, "I bet Thor was surprised." You nod and mimics Thor's face.

"I like you, my lady," Loki sighs and denies eye contact, "I can't help it." You look at the man and smile weakly, you had to confess Loki didn't leave your thoughts these days.
     "You didn't leave my thoughts either," you said, waiting for him to look at you. When he did, he had sent you a small smile. "Rum away with me," Loki tries.
     "You know I can't do that. Not to Thor, to my parents, to my kingdom," you say, feeling lost.

You turn 360 degrees to show Frigga and your mother the dress. ''Well, how do I look?'' you ask anxiously. Today was the big day, you were going to marry Thor Odinson. Your mother looks at you with tears in her eyes, ''you look so beautiful. My beautiful girl.'' She wipes a tear away. You giggle, ''stop it, mother.''
''I couldn't agree more with your mother, you look beautiful,'' Frigga compliments. ''Thank you, Mrs,'' you blush. She giggles and comments, ''you will have to call me Frigga soon, dear.''
You didn't feel happy, your heart didn't belong to Thor. Thor is an amazing, sweet, strong man but your heart lies by someone else.

Your father waits for you to walk you down the aisle. He begins to tear up as soon as he sees you. ''Ah, my little girl. So beautiful,'' he awes, pressing a kiss on your temple. ''Thank you, father,'' you blush.
You hook your arm into your father's and began to walk. You see the look in Thor's eyes as he sees you and it still makes you blush. Loki watches you walk closer, she looks astonishingly beautiful. Loki eyes his brother and Thor looks back, ''she is beautiful, isn't she?'' ''Yes,'' Loki breaths.

You give the flowers to your maid of honour, which has become Lady Sif. She smiles and accepts the flowers. Thor gently gets a hold of your hands and looks you in the eyes.
The man does his talking and starts with the ''I do's''. ''Do you, Thor Odinson, take Miss Y/N M/N L/N to be your wife?'' Thor smiles and sighs before answering, ''no.'' Several gasps were heard and Loki looked up confused. ''I want Princess Y/N to marry someone where her heart belongs and that's not with me. I would love her as my sister,'' he says, turning towards Loki.
Tears started to form in your eyes. ''Loki, brother. I want you to marry this beautiful Princess.'' Loki looks at his brother with many emotions in his eyes. He embraces his older brother, ''thank you.''

Loki turns to you and takes your hands in his. Both are smiling like crazy. ''Do you, Loki Laufeyson Odin, take Miss Y/N M/N L/N to be your wife?'' ''I do,'' he says softly. ''Do you, Y/N M/N L/N, take Loki Laufeyson Odin to be your husband?'' ''I do,'' you smile.
''I declare you now as wife and husband. You may now kiss the bride.'' Loki cups your cheeks and presses his lips on yours. You snake your arms around his neck. You pull back to look him in the eyes,

''I love you.''