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A Silent Oath

Summary:

Merlin goes into heat while Arthur's away on a hunting trip. Will Arthur come back or will Merlin have to suffer on his own.
Please don't hate me this is my first fic ever.

Notes:

(See the end of the work for notes.)

Work Text:

Arthur had woken up with a strange feeling in his stomach, a feeling that he got whenever something was going to happen. Not all things that happened were good and not all things that happened were bad. He pushed the feeling away as the sound of heavy - reluctant - footsteps made their way into his chambers. Arthur closed his eyes so that he would be properly woken up by his manservant.

The sound of curtains being drawn was soon followed by a tray being placed on his desk. The manservant walked over to the ridiculously large bed-fit for a king-and pulled the covers open.
"Really Merlin, is it necessary to wake me in such a way", Arthur had been teasing and Merlin's lips frowned before lifting up to the Prince's mouth and giving him a long kiss.
Arthur's hands made their way to Merlin's waist. When Arthur had first held Merlin by his waist he was surprised by how feminine they had been, not to feminine to mistake him for a girl but still nice to lay his hands on. Now Arthur barely gave any thought to the waist except to give a stroke with his finger, he lifted his manservant onto his own body and opened the draw next to his bed. After a moment of searching he found the bottle of oil and squirted some onto his fingers before they started for Merlin's ass. He gently felt for the rim and then pushed one finger, two fingers until Arthur had his whole fist twisting in the hole.
The entire time Merlin had been whining and squealing and making such dirty noises it made Arthur want to gag him. He did just that, Arthur grabbed Merlin's underwear and stuffed it into the noisy mouth efficiently stopping all noise from making their way out of his mouth. Arthur rolled a nipple in his fingers while thrusting in and out of Merlin's hole with his fist. He felt Merlin stiffen before going lax and he realized in an instant that Merlin had cum. His head rested on Arthur's chest as he rode out his orgasm followed closely by Arthur groaning then sighing in an obvious release.

After a few minutes of silence, Arthur lifted Merlin and placed him beside himself so that he could get up and grab the tray of food. Once Arthur settled back into bed, he waited for Merlin to come back to senses and start feeding him. This little change in routine had happened after Arthur had gone without breakfast because he had become too tired in the morning before training had properly woken him up for the day. Merlin had been furious to find out why Arthur had fainted when noon had been nearing, just in time for Merlin to come stumbling in with lunch. Merlin had insisted on hand feeding him lunch and dinner that day-they'd never stopped and it soon became one of his favourite parts of the morning, second only to the morning sex.
"Arthur, help me sit up"
"Alright you lazy ass"
"You love my ass"
Arthur responded by giving a heated kiss and to that Merlin shoved a slice of orange in Arthur's mouth.

(Line Break)

After such a quiet morning Arthur was craving excitement, a hunt. So Merlin organized the equipment and the horses and the food.
Honestly, it's like he thinks I'm the one responsible for all this. No wonder the other manservants had been unable to live up to the Prince's standards. Although he was glad that none of them had been able to keep up, otherwise I wouldn't have gotten to know him properly.
Throughout Merlin's monologue, he had gotten everything ready and he was about to start with his own horse and medical supplies before he felt a pool of heat in his navel. These were the times when Merlin regretted being born an omega. There was no way he could ride a horse. It would be unbearable-but he had to make do. Merlin pushed back his heat but he still felt flushed and hot, he hoped Arthur was still an oblivious prat or else he'd never be able to go and protect his royal backside.
But, as always, luck was not on his side. Seriously, he was Magic. Shouldn't luck always be on his side. Arthur realized after a moment of confused silence that something was wrong so he ordered him to stay at the castle and check with Gaius why he was so flushed. Merlin was so tired that all he could do was nod and mumble an agreement with a bowed head so as to not tire out his neck. This however made Arthur nervous and worried.
"Merlin are you sure you're alright", Arthur tried to hide the worried tone in his voice as he subtly raked his eyes over Merlin to catalogue his symptoms, "you never agree with me".
Flushed. Twitchy. Shaky. He could barely keep himself upright. Did he catch something from the lower town?
"It's nothing Sire, just a bit tired I suppose". Merlin fought to keep the tremble in his voice hidden and it seemed as though he was successful because Arthur dismissed him with a simple "you're dismissed".
Arthur and the Knights of the Round Table ( please note the sarcasm there) made their way into the forest but not before looking back at Merlin who only waved at them with a small grin. As soon as the knights were no longer visible, Merlin rushed to the castle and then paused, seemingly confused about where to go.
Arthur's chambers or my room.
His legs decided for him and he crashed into Arthur's chambers and decided that yesyesyesyesthiswasperfect.
Merlin set about making the room as comfortable as possible. A crackling fire, drawn curtains, and a bed that smelled like his Arthur. He made himself at home on the prince's bed, fantasizing about what would happen when Arthur came back.
Arthur walking in only to see the perfect omega there on his bed. Ready for the taking. Him rushing to his bed and pulling his own clothes off before doing the same to Merlin. Taking him right then and there with only Merlin's natural slick for lubricant. Oh it would burn so good. Would it make Arthur cum almost instantly. Or would Merlin have to work for it. Arthur walking into his room only to see an omega in heat, Arthur slowly walking over just to lift Merlin's head by his hair and grabbing hold of the pale, long throat and simply watching as the omega slowly turns red and chocking on his saliva. Arthur getting on his covers and lifting Merlin with both hands so as to be on top of Arthur. Arthur telling him to make use of himself and get him off. Him guiding Merlin to the tip and pushing his head down, continuing even after he gagged. And-oh, oh he already came. Merlin looked to where he came and made an eager sound, he brought his mouth to where the pool of cum lay and made his way through it finishing off with a small lick on the sheet.
Merlin looked up trying to see Arthur's face but realized that there was no Arthur and he made a pained face wherewashisAlphadoeshisAlphanotlovehimwasheabandoned. Tears glistened and fell from his eyes as he sniffed and clenched his hand into one of Arthur's clothing. He opened his eyes that he had not even realized were closed and brought the piece of clothing to his face, rubbing it and sniffing it. He didn't deserve Arthur, he was the future king, and he would be so amazing and fair and just. There was no place for him in that picture-he was of no use. So what if he could do magic so could others, Arthur would find someone who wouldn't lie to him for years and betray his trust.
Merlin got up on trembling legs, attempting to go to his own room but only made it to the fireplace before he stumbled and collapsed with a cry of Arthur's name on his lips.

(Line Break)

The sun was just about to set as Arthur and his knights reached the gates of Camelot and Arthur felt something was wrong. He urged his horse and the others to speed up so as to get to the castle quicker. As they were riding at a slightly quicker pace Gwaine made kissing noises and comments about Arthur wanting to get to Merlin as fast as possible and, because it was true, Arthur had no retorts to make.
As the castle came into view, the stable-boys came forward to take the horses and care for them. Once Arthur had made it onto the ground he sniffed the air while keeping his face slightly down so as to not embarrass himself.
My chambers.
Flushed.
Shaky.
Could he be in heat?

Arthur ran (if anyone were to ask they'd be given a sharp glare and a muttered 'it was a brisk walk') towards his chambers, eager to see Merlin while in the state he must have been in, but the closer he got to Merlin, the stranger he felt. Why There shouldn't be anything wrong with Merlin, no one would dare to go into the prince's room without permission from the appropriate authority. So why did he feel a discomfort in his chest? When Arthur opened his door and looked inside, he realized after a heartbeat just why he felt weird.

(Line Break)

Merlin was lying there on the floor trembling like a leaf on winters morning. Arthur rushed forward while taking his cloak off and wrapping it around Merlin in an effort to stop the trembling.
"Arthur", Merlin's voice held a tone not unlike one he heard whenever a family had cried in agony over a fallen knight, "Arthur, you're going to be a perfect a king and I'm sorry that I'm so useless. I can't do anything right anymore and I'm sorry".
Merlin's voice cracked and the tears that had been holding onto his eyes were finally let out.
"Sh sh sh Merlin, no need to cry, I've got you now". Arthur dragged Merlin into his lap and started rocking in a soothing manner, stroking the tear-tracked cheek with his thumb. "Come Merlin, tell me what's wrong. Has someone said something to you? Please, just tell me and I'll deal with it". Arthur's voice had gone so low had there been anyone in the room with them, they wouldn't have heard it.
Arthur gently lay Merlin onto the floor before getting up with a groan and lifting him up once more to lie in a more comfortable place. His bed-fit for a king. Or two people. Arthur held Merlin to his chest and he put his arms around his shoulders and waist.
"Darling, tell me what's wrong".
"I'm just not good enough for you, I've lied to you the entire time I've known you". Merlin takes a small gasping breath before continuing, "I have magic my lord, I promise I use it only for you-only you I swear.
"Alright Merlin, it's fine I know you wouldn't betray Camelot-oh alright, and me".
Arthur took Merlin's hand and pressed them to his own lips, making a silent oath to do help Merlin in any way possible.
Merlin's hand was brought up to pursed lips while he was making a silent oath to make Arthur the Once and Future King.

End

Notes:

Please don't hate me this is my first fic ever and the only reason i posted this was because just had to let people see this.