I got this idea yesterday and then I have been worked on it since then :)
Alright this will be a beautiful love story between Prince Arthur of Camelot and Merlin of Edinburgh and yes Merlin is not a prince he isn't crown as a prince so I don't want to call him a prince.
WARNINGS!: there will be slash, there will be abuse, Merlin doesn't have magic (I couldn't fit magic in the story) and Merlin's past a different (as you properly can guess), Arthur past is not different it's just...well read to figured it out ;)
And if there are spell mistakes in the story then please tell my English is not perfect! :)
As for someone can see I have made the story more readable, which is thanks to "cristina reid" who told me it would be better this way, which I of cores agree with :)

In the land Longford, lived Queen Josselyn and King Thomas happily, they were loved by the people and could easily walk between them. The Queen was known for her beauty, she had long curly raven black hair, there reach her hips, her eyes was deep blue and she always wore blood red lipstick. Every man adored her and wanted to have affair with her but, she was only interest in her husband King Thomas because he loved her as she was and not because of her beauty. King Thomas was a high man, black hair and blue/grey eyes, he was a caring king there always was fair.
King Thomas met Josselyn when he was in a tournament in her father's kingdom. When they saw each other for the first time they fell in love. Thomas won the tournament and then asked the king for his daughter's hand, the king blessed them. Thomas took the princess to his kingdom where they got married, she became his Queen and the people loved her straight away, because she was caring and lovely.
2 years later the Queen became pregnant and gave birth to a healthy son, which they named Merlin.
The boy got his mother's deep blue eyes and her raven hair, from his father he got the smile and hands.
Merlin didn't got raised by servants or a like, he got raised by his mother and father, they gave him all their love and caring as they raised him.
Everything seemed to go peaceful in the kingdom but, then war came between two other kingdom, King Thomas new one of the kingdom good, the king there was one of his good friends, so he went out to help his friend in the war. Unfortunately the king died in the war. The Queen was miserable when she heard her husband was dead, she was alone with her 6 year old boy. No one could cheer her up her husband's death took it to hard on her that she had thought to end her pain but, she kept herself going for her child.
Josselyn started to drink and let the maids take care of her son.
On day her sister Eleanor, who also lived in the castle forced Josselyn to hold a feast for all the kingdoms nearby.
A week later the feast was held and the Queen met the charming King Charles of Edinburgh, they started to talk and drink. He looked a little like Thomas, he had black hair and green eyes.
After the feast they started to write and he came often over to visit her with his son, Edmund. Merlin and Edmund became fast friends and Charles and Josselyn became fast lovers.
After a year seeing each other, Charles asked her to marry him, she said yes without any hesitation, she moved with him in his kingdom. Josselyn sister then became the new Queen of Longford.
Unfortunately Josselyn became deadly sick and died after a few months, Merlin was 8 at the time.
Charles then took care of the little boy.
Though Merlin had no idea that from that time, his life will become a nightmare.
It started not even a month after the Queen's dead that Charles started to go into the boy's chamber, watched him sleep, sometime Merlin woke up seeing the king watching him, though the small boy didn't take much in it.
But, after sometime Charles began to abuse the boy daily. Merlin was too scared to say it to anyone.
When Merlin was sixteen Charles came into the room while he was sleeping, Merlin woke up when he felt weight on him he looked at the king and knew what there would happen.
"Pl-ease...don't milord"
Charles however ignored the boy's begging, he forced the underwear down and went straight into the boy, Merlin couldn't stop a scream. Merlin took his head to the side, wanted it to be over.
Tears was running down Merlin's cheeks.
The king's thrust was hard and like every time Merlin could feel blood. Merlin had never stopped fighting the king but, unfortunately Charles was too strong for him.
"So good" Charles moaned above him.
"Fucking slut aren't you?" Merlin whimpered against the king's hard thrust.
"You are mine and only mine get that?" Charles hissed, started to go faster, Merlin screamed.
He knew no help would come, because it was the king no one had the courage to help Merlin, not even Prince Edmund. No one mention the abuse, no one talked about it.
"Fuck! so god!" Charles groaned.
Merlin closed his eyes, "my little fucking toy!". Merlin kicked though he knew he never would hit the king but, he couldn't stop kick out and scream.
"Shut up!" however Merlin didn't. He never did.
"So...close" the man moaned, it didn't take long before he came, collapsed onto the skinny man. After some time he went out the boy and then walked out the room leaving the crying Merlin behind.
It happened every night when the king was there.

At the morning sat Merlin, Edmund and the king ate en silence, they never talked while eating, what should they talk about? Merlin had never really talked since the abuse started, he was always scared and jumpy. Edmund never knew what he should say, he knew what was happening at night and sometimes also in the morning, even at midday if Merlin haven't behaved, though it had been a long time since Merlin had go against the king. He knew it was useless to start a conversation, Merlin would not answer or only will come with a short replied and his father was impossible to start a conversation with so he had learned to be quiet.

After an hour the dinner finally was finish. Edmund went out on hunting. Merlin didn't hunt or fight with a sword or anything, the king didn't want him to, he didn't want his "toy" to die or have a scar, so Merlin stayed inside for the most of the times, so he wouldn't get hurt.
Merlin decided to go to his chamber so when he was done eating he stood up and walked to the door but, got stopped by a hand grab his arm, Merlin turned back to see the king, he knew the look
"come here" Merlin however shook his head.
"Please not now!" he cried he tried to get his arm free.
"Yes now" the king's voice was slow and deadly, though Merlin was a stubborn man he pulled his arm free and then began to walk to his chamber, he glanced behind him, the king was walking after him, Merlin knew he shouldn't had go against him but, he was tired he just wanted to be in peace.
He got into his chamber fast he went to close the door, so he could lock it but, Charles was faster he pushed the door opened, so Merlin almost fell, he looked at Charles.
"Please not now milord" though the king didn't care against Merlin's will Charles dragged him to the bed, he throw him in it, Merlin tried to get out of the bed but, Charles was on him fast, he hold the boy's hands above his head squeezed Merlin's wrists hard, which made Merlin hiss. When Charles took his hand down to pull the boy's trousers off Merlin felt his eyes get hot,
"I'm sorry milord...please don't do this" he begged, though the king ignored him he pulled them down and then the underwear, he then went down to Merlin's ear,
"you are a bad boy!" he hissed.
Merlin screamed when Charles forced himself inside him, the scream was deadly and everyone in the castle could hear it.

Edmund had just come in, he had forgotten his cloak for the hunt but, then he heard his half brother's deadly scream he sighed, guessed Merlin had go against the king since the scream was that loud. He then got the attention to two guards who look clearly uncomfortable, he then saw it was because they were new, he sighed and went over to them.
"Names?" both guards bowed,
"Triston sire!" one of them said.
"Peter sire!" the other one said.
Edmund nodded.
"Well. Peter and Triston...you better get used to this because it will happen a lot...and don't mention to anyone else if you want to keep your heads".
The both guards glanced at each other and then at the prince the bowed in respect, "as you wish sire" the both replied, Edmund nodded satisfied and then went up the stairs to get his cloak.

"St-stop pl-please..." Merlin whimpered, he kicked out but, as always the king ignored his begging. Merlin screamed everything was so violent, the thrust fell like he was being cutting in half, his screams was so loud and always he hoped that someone would come to his rescued but, that would never happen.
"Mmmm...that's it!" Merlin cried and screamed, wished it soon would be over.
"So tight! so god!" Merlin screamed, it was too hard, he could fell the blood running down.
"ST-STOP!" he screamed.
"Shut up boy! no one will come for you little toy!" Merlin knew he was right, no one would help him for anyone else he was just the king's release.
After what felt like forever the king finally came into the crying boy.
When the king had his clothes on again he looked at the boy on the bed, he went down to hiss in his ear, "don't you dare disappoint me again" and then he walked out.
Merlin slowly went up to sit in the bed, the covers around him, he gritted his teeth he looked behind him to see blood. He then heard a movement by the door he looked up to see Edmund, sympathy was writing on his face, Merlin eyes was red from crying. Edmund gave him one last sad look and then closed the door to give Merlin privacy,
When the door closed, Merlin let himself break down.

So what do you think? ;)
I know Charles is pretty evil isn't he, just like I wanted ;D
Please review - then you will make my day! :)