Author's Note: Hooooooly fuck. I can't believed how badly written this original piece was, I only noticed when I re read when taking a crack at writing a sequel. I still rather like this story so I didn't change it too much, just polished it up in places, it's probably longer than the original as well. I am still probably going to write the next chapter of this due to my encouraging reviews so thank you so much to everyone that left one! I hope to have the second chapter up as soon as possible but until then enjoy the hot Merthur smut.

Arthur didn't notice it at first, he took it down to just being a rather appealing day, when it was hot and bright and everything looked particularly good.

But there was no mistaking the pleasant scent emanating off of Merlin whenever he stood close by, dressing him in armour, or standing at hand to replenish Arthur's wine whenever the goblet was empty.

And Arthur loved it.

Merlin smelled utterly intoxicating, absolutely delicious. It was only when Arthur started looking forward to seeing his manservant throughout the day; he suddenly started seeing him less and less.

Only in the morning when Merlin would throw open the Prince's curtains, letting the light stream in, would Arthur see the dark locks glowing behind the gaze of the morning sun, and that flawless white skin kissed by the bright light.

And Arthur would inhale that beautiful scent which had become his manservant.

After quickly dressing his Prince, Merlin would take his leave.

Running endless errands for Gaius it seemed.

And Arthur would pine for him all day.

Meanwhile the young warlock was in turmoil. His body battling these new sensations: the Heat.

It had been strange waking up one day with a painfully throbbing erection and a heated fever. After relieving himself only then Merlin's did the fever die down.

But the relief didn't last long as when Merlin attended to the Princes chambers, he found himself transfixed at the sight of his sleeping master. Lying face buried in the royal pillows, golden blonde hair spilling onto the fabric. The rich quilt tangled around his waist, exposing the toned muscles of the Prince's back.

The fever immediately came back, along with another aching erection.

Merlin couldn't pull his eyes away from Arthur's powerful body, honed with vigorous daily training. He wasn't sure how he had never appreciated it before.
With a gulp the warlock tore his eyes away, grabbing some dirty laundry and folding it over his arm to hide the tent in his pants.

He awoke the prince hurriedly and briskly went on with his morning duties. Answering in non-committable grunts to Arthur's occasional questions, as the prince seemed unusually cheerful and talkative that day.

This went on every moment that Merlin spent with his master. Watching the prince train was particularly torturous. There was something about the way Arthur battled and defeated his opponents which made Merlin's blood boil with lust.

Eventually the warlock sought Gaius for counsel.

"I don't understand. This has never happened before." Merlin finished after explaining.

Gaius seemed to be lost in thought for a few moments before sighing, taking off his glasses and slowly wiping them on the hem of his tunic.

"Well Merlin, it appears to me that you've entered your first Heat."

The young warlock shook his head disbelievingly. "But I'm a Beta, I'm sure of it." Merlin protested in denial.

"Most people stay neutrally a Beta until they are mature for mating. Once you reach of age is when your true form shows. I'm sorry Merlin, but you're an Omega. Being around an Alpha like Arthur for so long must have brought upon this directed heat. You'll just have to endure it, my boy."

Merlin sat down numbly on the bench as Gaius tittered in pity.

Him. An Omega.

Back home in Ealdor, It was unimportant whether you were a submissive or not. But here in Camelot, prostitution was rife, and illegal trafficking of Omegas was a growing -however frequently overlooked- issue.

Male omegas could rarely bear pups. The only thing they were good for was sex.

No one would take him as a mate, and in his current state of Heat, Alpha's would be drawn to his raging pheromones and Merlin would have no choice but to submit to any Dominants whim.

After seeing the dejected look on Merlins face, Gaius sighed, moving to away for a moment and then returning with an old book.

"Merlin, I can prescribe you with concoctions to balance out your hormones. This will suppress the nature of your Heat, and I suggest you take a few days off as well." Gaius offered as he flipped through the book, already searching for the right potion.

"Thank you Gaius, but I can't take time off or Arthur will want to know why. I don't think I could bear it if he comes down to investigate." Merlin said, and immediately regretted even thinking of Arthur as his body heated embarrassingly in response.

The physician nodded in understanding, pretending not to see Merlin cross his legs and blush. He set to work brewing up the much needed potion.

"I do suggest you take a cold bath in the meantime, Merlin. That should take an edge off.

Merlin agreed, he steeled himself with deep steady breaths, and left to tell Arthur he would be out for Gaius for the day, before grabbing himself a cold bath.

Arthur paced his chambers restlessly. Today Merlin hadn't even turned up to work; instead it had been George who shook him awake that morning. Much to the extreme disappointment of the prince.

Arthur couldn't quite place these feelings he had. All his thoughts somehow kept slinking back to his sweet-smelling manservant. Even his father began to notice, as Uther asked him out of concern one luncheon as whether he was falling ill, in regards to Arthur sat sullenly in his seat, a slightly predatoral look across his features.

The truth; Arthur was not ill, But he was worried Merlin might be.

If Merlin had indeed fallen sick, then Arthur could do nothing. The thought infuriated him.

Arthur suddenly realised he didn't even know where Merlin was. Anything could be happening to his manservant right now. His Merlin.

He mentally kicked himself for allowing Merlin to go unaccounted for so long, as a sudden wave of protectiveness rose in his chest. Arthur felt the guttural instinct stirring in his gut.

He had to find Merlin.

It had been a vain attempt, but Merlin had eventually given up, resigning to taking an unpaid vacation to twist and moan in the sweaty sheets of his bed.

Gaius's potion did little to suppress the Heat, and all Merlin could do was fist the sheets as he panted and fought to stay in control of his own body.

He'd woken up that morning slick and hard. The lust took over and Merlin had found himself rutting against his bed until he came.

Since then, the Heat kept coming in powerful, unbearable waves; there was nothing the warlock could do that sated it for long.

Merlin knew exactly what he needed, though.

He needed to be mated. He needed Arthur.

Arthur was the one his blood lusted for; he was the Alpha that had brought upon this Heat.

And it was all Merlin could do to not sprint straight up to the Prince's chambers and posture himself before the Alpha, begging to be taken.

Arthur ignored George's protests as he shoved past the man, making his way to the physician's chambers.

Damned if he had jousting practise now. There was one thing on the Prince's mind and that was Merlin.

It was as if with every beat of his strong heart, the other boys name thrummed throughout his entire body.

He charged down a large winding staircase, already able to smell the delicious scent of his absent manservant, as though he could detect Merlin had recently passed through here.

Which meant that Arthur was getting steadily closer to him.

Arthur's breath sped up, it came out in thick heavy pants, and heart racing as he neared the Omega which had been enticing him for what felt like so long.

He stormed into the physicians chambers and headed straight for Merlin's room.

He was so close now.

Without noticing that Gaius was not present, the prince pushed into his manservant's room and froze.

Merlin was stood there, shirtless.

Arthur took a few moments to take in the site of Merlin's naked chest, shining in beads of sweat, rising in erratic short breaths which visibly hitched when the Manservant laid eyes on Arthur.

There was a deafening silence as both men just stared at each other. When suddenly Arthur charged forward and pulled Merlin into a bone-crushing hug, burying his face in the warlock's neck.

"Oh for the love of - I was so worried about you, you idiot! And you were here this entire time!"

Merlin stumbled back into the wall against the ferocity of his Prince's embrace, before wrapping his arms just as tightly around him.

"I'm...sorry..." Was all Merlin managed to pant.

The proximity between them was driving Merlin crazy, he closed his eyes and tilted his head back, letting the Prince nuzzle deeper into his neck.

"Merlin...I was..." Arthur started to speak, but was becoming enthralled by the scent the younger man was emitting. He dug his nails into the warlock's bare flesh and inhaled deeply, causing the Omega to gasp, eyes fluttering.

"Fuck Merlin. You smell so good." The Prince groaned, tightening his grip on his Manservant.

Arthur pressed his nose deeper into Merlin's throat and growled appreciatively.

Merlin squeezed his eyes shut. Praying that the alpha would not turn his attention to the warlock's prominent erection, so close to pressing itself into the Prince's thigh.

As Arthur nuzzled the Omega, Merlin was grateful that Arthur wasn't quite yet sure what was going on, and was acting on pure instinct. Even so, Merlin was well aware that he may be the only one with any self control at the moment. Self control which was unfortunately fading – fast.

The Omega's gasp turned into a soft moan as he palmed the Alpha's shoulder blades, squirming between the stronger Prince and solid wall.

His mind swam, as he fought for rationality. Every cell in his body was screaming yes. The Heat building to an unbearable point.
Arthur could feel the Heat too, his growls instinctively growing more dominant. The Omega felt so good, so right pressed up against him like this, entwined in his arms.

On that very thought the Prince felt the urge to feel Merlin. To touch and palm and squeeze his body.

Arthur let his hands trail. Palms rough and strong after many years of physical training, they slid over the smooth pale flesh of the trembling warlock, right up to his chest, shoulders, then back down to stroke his bare stomach.

Merlin's back arched in pleasure, his skin burning like fire at each touch. But it was a pleasurable feeling - Intoxicating, even.

The result of Merlin's movement gave Arthur room to press himself harder against the Heated submissive whose straining erection was now rubbing against his own, creating delicious much needed friction.

With that Merlin threw back his head and moaned. The sound sent a bolt of pleasure straight to the Prince's cock, which growled and sunk his teeth into the warlocks flesh.

Merlin jolted, gripping Arthur's biceps and whimpered. He tried weakly to push the Alpha away, but with no chance of succeeding.

"Arthur..." Merlin moaned, squirming in the Prince's grip.

In response to the warlocks lack of submission, Arthur desperately grinded against the whining male.

The reaction was immediate. Merlin keened and suddenly grabbed his Prince's hair, tugging as he arched again in pleasure.

The only thing Arthur could think of was just how fucking amazing that felt.

He grinded again, this time grabbing the warlock's hips and holding him steady.

"Arthur stop!" Merlin gasped as the Heat pooled over and spiked in his stomach. He grabbed at the last sliver of rational thought he could muster, and with unknown strength, jerked away from Arthur's hold.

Before the Omega could sprint from the room, Arthur flung out an arm and caught him. The action sending them both flying to the floor, where they lay sprawled in a heap.

Arthur knocked the breath out of Merlin by slamming on top of him. The Prince after years of close physical training and combat easily gathered his bearings first, and straddled the winded warlock.

"Arthur please, think about what you're doing." Merlin panted, struggling beneath the stronger man.

There was a small part of Arthur that was screaming at him to stop, an instinct telling him he was hurting the Omega, when it was his job to protect.
Arthur faltered, momentarily regaining control. However it immediately vanished when he caught sight of the sweating Omega panting beneath him, eyes blown back with lust and chest heaving with desperation.

It was almost enough to send Arthur into a rut.

"Merlin..." He growled, attacking the warlock's neck with his lips.

Merlin let out an embarrassing mewl and bucked his hips before he could stop himself.

Spurred by this action, Arthur began to grind down. Enticing more submissive sounds from his manservant beneath him.

Which each second Arthur grew harder and harder, the noises Merlin made were sending feelings straight to his groin.

And the pheromones pouring off of him...

Arthur rutted hard down onto Merlin, he was so, so close to ripping off the remainder of Merlin's clothes and taking him right there on the floor.

The only thing stopping him was the persisting knowledge that Merlin was not consenting to this.

There was a crash in the other room and Arthur froze, snapping back to a reality which was not the Heated Omega.

He heard Gaius calling out for Merlin, and the sound of heavy books being dumped on the table.

Merlin whimpered softly.

Arthur felt a pang and sudden regret, pride getting the better of him as he jumped up off of his manservant and charged out of the room, shoving past Gaius as he did so to save being caught in such a raunchy situation.

Merlin whimpered again but this time at the loss of the needed warmth from the Alpha's body.

He had wanted Arthur to stop because they just couldn't, yet his body had needed nothing more.

Angered at his own conflictions, Merlin sat up on his elbows as Gaius burst into the room.

"Heavens sake, Merlin!" Gaius exclaimed.

"I leave you alone for 10 minutes and you end up in a state like this! I assume that was Arthur who just went charging past. At least he came to his senses. Honestly, it would be a good idea to have you two separated in a more secure way until you come down from your Heat."

Merlin didn't reply but turned away to hide his throbbing erection. Gaius got the message and sighed, leaving the room to pour Merlin another ice cold bath.

After the encounter in Merlin's chambers, Arthur threw himself into work.

It wasn't that the memory of the ordeal was embarrassing -which it was- but the mere thought of it stirred the pent up lust within the Alpha.

He wanted Merlin.

No.

He needed Merlin.

The need to claim the Omega, who was just begging to be mated, was painfully great.

Arthur had no idea how long he could last.

Obviously, his father, the conservative bastard he was, would be thoroughly against the idea of Arthur having a male mate.

Not because Merlin was male, but because he could not bear pups. However the fact that he was male was also taboo on its own.

The Prince sighed. This would last as long as Merlin's Heat, which due to their previous encounter would now be prolonged.

Arthur could just imagine the warlock touching himself to relieve the Heat, all day just lying on his bed, drenched in sweat and pumping his cock – no fingering his hole, slick with need, whilst moaning the Alpha's name over and over.

The very mental image caused Arthur to groan out loud, to which George looked up from where he was polishing the Prince's shoes.

"Anything the matter, sire?" He enquired.

"No. Dismissed, George." Arthur answered curtly, the sudden desperate need for time alone taking away the necessity of politeness.

George bowed and left, shutting the door in his wake.

As soon as the door clicked shut Arthur groaned again, steadying one hand onto the desk, he thrust the other down his pants, to grip his eager cock.

He growled as he jerked himself roughly, the pleasure almost forcing him to his knees as he brought back that image of his fuckable manservant furiously masturbating to sate his own lust.

The Alpha felt that feeling stir up in his chest again, his blood set on fire as his skin already began to sheen with sweat.

Arthur's own hips rolled in time with his jerks. In what felt like no time at all, he began to feel the familiar pool of heat in his lower stomach, telling him he was close.

Letting Merlins name slip through his lips, Arthur's pumped his cock twice more before spilling his seed all over his hand, his head thrown back in a rather animalistic moan.

After Arthur came, he sighed in shortlived relief.

This couldn't go on. Arthur had to do something about it, and soon.

He wasn't even the one in Heat, yet he still felt the pain of utterly forbidden desire.

The Prince found himself retiring early, stripping himself of almost all clothes, and climbing beneath a single sheet.

It was going to be a long, hot night.

Arthur awoke to the sound of a breathy moan.

He shot up in bed, disturbed from a dream where he was rather violently fucking a begging Merlin atop his breakfast table, and went immediately into a defensive stance.

The Prince grasped a sword from the side of his bed and zoned in on the intruder, pinning him to the door of the wardrobe, blade at the throat.

"Arthur..." The intruder moaned in an all too familiar voice.

"Merlin." The Prince breathed.

Without asking why Merlin was even there, he flung the sword away, grabbing the warlock by his already bruised hips and smashed their lips together.

The kiss was messy, needy, and heated. Within seconds Arthur had dominated his manservant's mouth with his tongue, hands trailed beneath his shirt, scraping the flesh and ripping the garment right off.

The action of ripping away his shirt left both men breathless, they pulled apart panting hard into each others mouths.

Merlin's hands were roughly twisted into Arthur's hair, pulling them closer together. He could feel the warmth and strength rippling off the older man and Merlin moaned with need.

"Alpha..I...I need..." Merlin mewled needily, palming his Prince's locks.

It was at that moment of total submission did Arthur lose every ounce of control.

He grabbed the Omega roughly by the hips and swung him round, throwing him onto the bed.

Merlin gasped breathily as he hit the sheets, then Arthur was on him once more, literally pouncing on the keening warlock, tongue and teeth trailing down his naked torso as he keened and moaned.

Arthur's actions were rough, hurried, and desperate for so many things impossible to do at once.

The Alpha assaulted his chosen Mates chest with bites and sucks and rough kisses, which trailed down to his sensitive stomach, where dragged his teeth along the burning skin.

"Alpha please! I need!" Merlin moaned again, tortured by the teasing kisses. He threw his head back onto the rumpled royal sheets, and bucked up his hips again to brush his throbbing cock against Arthur's chin.

The exposed Omega shivered with lust, his entire body convulsing in the pleasure as Arthur immediately engulfed his throbbing member into his hot, wet mouth.

Arthur sucked hard, eliciting a scream of pleasure from the writhing man on his sheets.

Merlin thrashed, his legs looped around the Prince's neck and squeezed, forcing his cock deep down the Prince's throat.

Arthur choked slightly before gripping the already bruised hips of the moaning male, and holding him steady, completely at the mercy of the Alpha's assaulting mouth.

The Prince lapped his tongue lovingly around the warlock's length, closing his eyes as he hummed in appreciation of the sound of Merlin's choked sounds of pleasure.

The sounds Merlin was making were mostly incoherent moans of pleasure and encouragement, but occasionally as Arthur's tongue worked the Omega's cock skilfully he would cry out the others name with eyes screwed shut as he twisted against the Royal sheets, and the word "Alpha" stuttered out between thick moans.

Merlin came without warning, his hot cum shot down Arthur's throat, and his head fell back in a silent scream.

Swallowing without pause, Arthur flipped Merlin over drinking in the sight of his manservant's pert, white ass. He growled in appreciation, squeezing and kneading the Warlock's cheeks before spreading them to expose his needy hole.

Merlin was already slick, open and ready, practically begging for Arthur to take him right there.

Instead, Arthur thrusts two fingers inside the hot, tight, and wet hole making the submissive cry out at the intrusion, jolting in part pain and pleasure.

Arthur cooed softly, instinctively stroking the younger man's hips with his thumb in attempts to calm his Mate.

"Relax Merlin." He murmured planting soft kisses along his spine, suddenly pointedly aware that the other man was a virgin.

The Omega whimpered but pressed back against Arthur's fingers, signalling him to carry on and Arthur found Merlin adjusting easily. His ass greedily sucking in each finger that the Prince added scissoring and stretching inside.

It didn't take long to have Merlin's steady pained whimpers turn to ones of pleasure.

Soon Arthur was adding a fourth finger, and the warlock was fucking himself hungrily on each one.

Arthur's mind was a red haze of lust, preparing the young Warlock -however satisfying it was- just wasn't enough to sate the desire to bury his cock deep inside the other male, thrusting hard and making him lose control like he was now.

He yanked out his digits roughly, making the Omega whine at the loss and clench around the sudden feeling of emptiness until he felt Arthur lining his cock up to Merlin's hole, who with a roll of his hips, pushed in.

Merlin's mouth fell open to scream, but no sound came out as the sensations threatened to overwhelm him. He was so full of the Alpha's cock, which was perfectly thick and hard and deep. Arthur too, was entranced at feeling of finally penetrating his Mate. Merlin was just so slick and hot, and despite the preparation with the Alpha's fingers, he was still almost unbearably tight.

Meanwhile, now lying on his front, Merlin mewled and buried his face into the sheets, his thighs quivering at the sensation of Arthur pressed so hard inside him. He fisted the sheets, twisting his trembling hands right into the fabric, as Arthur panted, hands on the Omega's back and cock seated balls-deep inside his slick hole.

It took a few more moments for Merlin to adjust and Arthur to gather his senses.

The Omega soon began to rock his hips back in attempts to entice movement from the Alpha, and Arthur got the message that he was ready.

The Prince held onto Merlin's hips once more, and pulled out so that only the head of his cock penetrated his sweet-smelling lover and leaving Merlin whimpering in anticipation.

With a smooth stroke of the younger mans hips, Arthur suddenly and roughly plunged back into the Omega, drawing out a loud moan from both the men.

Arthur thrusted again.

"Mphh, Alpha... Yes!" Merlin managed to cry out. His blood rushed, and knees already weak as he finally experienced the pleasure of mating.

The Prince growled as he tightened his grip and pounded into his manservant over and over again.

With each thrust, Merlin made a new and even more delicious sound, and each one spurred Arthur to fuck the warlock harder and harder.

It was only when the Prince lent forward to bite his shoulder, did Merlin really scream in pleasure. The pain of the bite, hot and dominating, and the angle of Arthur's cock struck a chord deep inside the younger man and was drawing out the filthiest neediest sounds from the Submissive's wanton throat.

"Gods. Arthur yes! Right there, Arthur! Gods!" Merlin lifted his head from the sheets to pant deeply, each thrust knocking the breath right out of him and making his eyes squeeze shut in ecstasy.

On finding his prostate, Arthur shared Merlin's extra pleasure. At each thrust, the Omega clenched every muscle, squeezing the Alpha's cock to an almost painful point.

It was enough to send Arthur truly into a rut.

The Prince fucked his manservant with relentless force. Head thrown back once more as he began to pant harder. Spurred on by the encouraging sounds that his Mate was making, heat was already spreading through his body to pool in his lower stomach, and Arthur knew he wouldn't last much longer.

The sounds his Mate was making was driving him closer and closer to the edge. The warmth radiated between their bodies, back against chest, Arthur's strong arms wrapped hard around his Mate's stomach, supporting him against the powerful thrusts.

In the haze of pleasure, Arthur felt his knot beginning to swell. It stretched Merlin painfully, locking their bodies together and forcing the Alpha's thrusting to become more shallow, but still heightening the pleasure to nothing they'd ever experienced before.

Neither cared how much noise they made now, their only priority was the increasing speed and strength in which Arthur drove his cock into his Manservant.

Arthur swore as he became close to coming undone inside the younger man, Merlin's cries of pleasure now reduced to incoherent streams of moans and whimpers as the Alpha pounded harder and harder, the gathering Heat in his lower stomach threatening explode. And when it did, Arthur came.

If he even screamed; he didn't realise. The orgasm knocked him blind through a white sheet of pleasure, and the sensation of such an Alpha coming so hard, so deep inside of him, threw Merlin undone as well.

The warlock's orgasm followed suit, staining the sheets, as Merlin cried for his Alpha once more before collapsing beneath his Prince Arthur still knotted inside him.

The clenching of Merlin's muscles milked out the last of Arthur's orgasm and he rode through the pleasure, panting heavily.

Merlin's Heat was momentarily sated. He was mated.

But now he was suddenly cold.

As Arthur's vision returned, he felt his Mate's shivering and tightened both arms around the other's body, holding him flush against his chest and nuzzled the warlocks hair.

The Chill was a natural reaction to mating, now the Heat was subsided, came the coldness which encouraged the Mates to cuddle and nurture their newfound bond. Not that Arthur could pull away anyway, as his knot was still heavy and thick inside the Omega, still locked in their coupling.

But Merlin was too exhausted to care, he smothered himself in Arthur's warmth; already falling asleep from his body strenuous state over the past week, and the activities that just transpired. The prince too was beginning to feel a healthy exhaustion that only came from sexual satisfaction and he tugged the royal sheets around the both and buried his nose into his Mates hair.

"Mine." He murmured, inhaling deeply.

Merlin smiled again before drifting off to sleep.