The Black Book - AU - Locked to seaweed_writes

[ihadabadday]

He was lucky with his expertise he was able to find a job relatively quickly in a field he was familiar with. John looked down at his mobile as the alert came through. Christ. It was going to take him at least twenty minutes, if he was lucky, to get to the scene. But, he packed his things into the case and headed out.

He had been in Afghanistan for five years. First as a medic, then a doctor, and finally a hunter. He still was a doctor, but he had been assigned to an elite unit in the desert. Part of him felt a bit odd about all of it. But he didn't quite mind.

He made sure he had everything before he left.

He heard the annoyed voices, before he saw anyone as he entered the room.

"Oi. Who're you?" A man with two days of stubble and mussed black hair asked.

John paused and looked him over before his eyes landed on the gentleman in the suit with salt and pepper hair. There he was. "DI Lestrade? I'm Doctor John Watson, the new Occult Specialist, I just started last month." He gave him a smile, wanting to be nice, but not too friendly. People got jumpy around the occult. He saw it all the time in Afghanistan, and even here in London.

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[ihadabadday]

He groaned, wanting to get lost in the kiss. Sherlock certainly knew what he was doing and it felt like he wanted to give into all of it. But he didn't want to rush into anything. Especially not an adrenaline fueled one.

And then Sherlock grabbed his arse and... It shot a wave of lust through him.

John pulled back, putting his hands on the man's shoulders. "Hey, woah, slow down..." He smiled at Sherlock. "This is sudden. I want to, but we don't have to rush."

[seaweed_writes]

Sherlock moved his hands off of John's arse, and leaned just far enough away that he could speak.

"Fascinating." He said, as one hand dropped to his side, and the other took John's opposite hand.

"What?" He heard John respond.

"There are stories.." He said, all the time gently pulling John into the room and settling him into the middle.

"..About humans who can resist a vampire's Thrall." Sherlock reached back and turned on the light.

"It's a well guarded secret that..." He looked John in the eyes "...Those stories are invariably not true." He looked down, and invited John silently to do the same.

[ihadabadday]

Why had the kissing stopped? It was sudden, but he was alright with it. The kissing was brilliant. He let out a breath and moved with Sherlock further into the room.

And then that brilliant vampire was talking and John wanted to swear and and... He knew, he fucking knew. Shit.

His eyes flicked downward, feeling his stomach drop. "Sherlock..." John raised his head, looking at the man, "Why am I in a trap circle?"

[seaweed_writes]

"There is no magic or talisman that is powerful enough to protect a human from a vampire's Thrall within thier territory." Sherlock said, ignoring the question.

"They immediately enter a compliant state and only respond to direct questions or commands." Now, it was time to find out what he had needed to know since the first time he laid eyes on John Watson.

"Which leads to the question... What ARE you?

[ihadabadday]

He tried to pull his hand away. But it was held tight. "Hold on a second..."

"No wait let me explain."

John couldn't help the slight panic thsy was creeping into his voice. Sherlock didn't understand.

No. This couldn't be happening.

[seaweed_writes]

Sherlock still had a hold of his hand. John looked like a deer in headlights, he was pale and sweating. It was quite obvious that he was hiding something, but Sherlock didn't know what it was.

Yet.

He was about to.

"The circle is harmless, as you know, but whatever creature you are, it will reveal you. "

John was looking away from Sherlock, down at the circle. He tried to cry out. "Wait!"

But Sherlock spoke the word, still holding onto John's hand.

"CONFINE."

The entire apartment was bathed in an almost blinding white light, brighter than the brightest sunny. day. There was the intense crackle of magic, red beams mixing with the white light.

It seemed to last forever, though it was really only a few seconds.

And when it cleared, Sherlock couldn't believe his eyes.

[ihadabadday]

John clung to Sherlock's hand as he felt the power of the circle around him start to flow over. He dropped to his knees, his free hand coming up and grabbing his hair. And oh...

Oh...

The power faded and he was trembling ever so slightly.

He lowered his hand and looked up. "Let me explain..." John said as he flexed his wings.

[seaweed_writes]

Sherlock went paler than usual, his eyes were wide, his whole body stiff.

And yet, he was still holding John's hand. Only now each finger was tipped with sharp, thick onyx black claws.

"A DEMON." He said, his voice shaky. So that was what John was. He was a demon.

But.. it made no sense.. if he was a demon, then why was he hunting his kind?

"A demon, hunting demons for the Yard." He said. "Are you a spy?"

[ihadabadday]

John's eyes widened and he put his hand up. "No, no!"

"It's a long story, but I do not work for the Underworld."

He rose to his feet. What was Sherlock going to do? Report him? Banish him. He was nervous and worried. He finally had thought he found someone similar to him. But he hadn't seen this coming.

[seaweed_writes]

A long story, huh? Sherlock thought to himself. This was a story that he was going to have to get out of John. But not right now. Right at this moment, there were more important things to think about.

"You're a DEMON." he said, again, still not able to believe it. He knew that John wasn't human, but he never would have guessed that John was a demon. That changed EVERYTHING.

But that still didn't change the lust that he felt for this man.. this Demon.

"Half demon. Listen.." John started, but Sherlock interrupted him again, finally dropping their clasped hands.

"A HYBRID?" He asked, incredulous. Was that even.. possible? " I have only heard stories." His hand went to John's horns, small and rounded, the points were sharp but not razor sharp, and he investigated the horns, touching every little part of them, feeling the texture and shape and every little part of them.

"When they find out what you are, you'll be banished. " He said, still rubbing John's horns.

[ihadabadday]

"Sherlock please..." John whispered.

He looked so frightened and worried. Sherlock seemed so fascinated. But what would happen when the fascination wore off? When he was just a novelty...

He listened to Sherlock speak, the words were frightening, but truth.

"I know."

And then... He was being asked to move in. "Huh?"

[seaweed_writes]

He didn't want to scare John, but the man deserved to know the truth.

"You'll be found out." He said, putting his hands on either side of John's face. "There will be a white circle or holy rune at a crime scene that will show them what you are. Someone will see too much death and murmur a prayer, and you will be exposed." If it was possible for John to go even more pale, he did.

"You try to hide in plain sight my working directly with dark magic. First the war, and now the unit..." He pauses. "But there will be a point when it will end. "

John sounded so defeated when he said that he knew.

But Sherlock already had an idea forming in his mind.

"Those laws still don't allow them to violate a vampire's territorial rights." He said, his voice getting more and more excited. He gripped John's shoulders hard. "You should move in with me."

John's surprised "Huh?" Just raised his excitement.

"If you live on my property, then no one can touch you, mo matter where you go, or what you are" He said, a big smile on his face. It was perfect.

"And once they know what you are, you will be even MORE useful!" He went a bit more somber for a moment.

"Well, as long as Mycroft keeps his fat hands to himself.

Of course he expected John to ask who Mycroft was. It was a slip of the tongue, to mention his name. "Don't worry about it." He flapped his arms in a dismissive gesture, hoping that John would drop it.

[ihadabadday]

John listened and felt his heart drop. He knew. He knew this couldn't last forever. That he would be found out. He knew that it would happen.

But what Sherlock was saying. It was plausible. But...

"So, you set this all up so I would be even more useful on cases?" That stung. He had thought that maybe... Just maybe Sherlock might have...

"Do you even..."

John hated that he was constantly being interrupted. Spoken over. He didn't like being railroaded.

"I'm what?" He asked dryly.

[seaweed_writes]

While he was hoping that John would be useful on cases, that actually was not his main intention, so he explained himself.

"I set this up simply to make certain that you were not a ghoul, or a construct sent by an enemy." Hell itself knows that he had made plenty of those in his 400 years.

"Or than you had some other condition that you were not aware of."

God, he was beautiful like this, so vulnerable and fucking perfect. Over his centuries, he had had plenty of lovers, but never a demon, and never, ever a man like John Watson.

"But instead, you're.... " He paused. This was it, the moment of truth.

When John asked "I'm what?" He leaned in and kissed John again. It started soft, and gentle. He pulled away just long enough to say. "Perfect." and then leaned back in, wrapping his arms around John tight and deepening the kiss.

[ihadabadday]

John wasn't used to showing his vulnerability. But it just seemed to come out around Sherlock. It was odd. Almost as if his subconscious trusted the vampire.

He looked up at him and then a slight shudder ran through him as this mad man kissed him. It was soft, gentle and everything he wasn't used to.

How was he perfect? He didn't understand. But then Sherlock was kissing him. More and more. Deeper.

"Shit Sherlock..." John managed when they pulled apart, his hands resting on Sherlock's chest, "What do you want from me?"

He paused when the vampire told him 'everything's, the expression on his face flat. "Wait, Sherlock... I appreciate your offer. But you know demon's blood will melt a vampire's face off. So..."

[seaweed_writes]

Sherlock's hands wandered lower, until they were just above the waistline of his trousers. Since John had no shirt on now, he could feel the warm, smooth planes of his skin.

When John asked the question, the answer came as easily as breathing. "Everything." He didn't have to hesitate or think about it for a moment. Oh god, he still wanted to bite the man, and as he whispered that one word into his ear, he almost did.

But then John reminded him why he shouldn't. Demon blood was death to vampires.

Sherlock drew back just a tiny bit. "I'm not asking you to be my blood servant." He replied. "It's logical and practical, and it would be brilliant.." Another pause.

"Our partnership." Sherlock leaned in and kissed and licked at John's bare shoulder, while his hand moved down his smooth front and rubbed at the front of those trousers.

"We'd be perfect together." His voice was barely a whisper on those last words.

[ihadabadday]

His head spun from the words and the touches. Oh. Oh wow. He shivered, feeling his trousers starting to tighten. Oh it had been so long and he wanted... He needed.

"Wow..." he breathed, bracing his hands on Sherlock's shoulders. The man was now on his knees in front of him and he... Oh god. He wanted it. All of it.

"For a four hundred year old you move really fast." John looked down at him.

[seaweed_writes]

Sherlock made a pained face. He hated being reminded about how long it had been since he had taken a partner, and how absolutely rubbish he was at all of this.

"I told you I'm not good at this!" he snapped, but then came back to himself, and took another tact. He knelt in front of John, kissing his way down his front, until he got to the thin thatch of hair that lead down into the trousers, and whatever lay beneath. He had never bedded a demon, and had never even seen a half demon, so he had no idea what lay under his last layer of defense.

"Live with me." He said, kissing right below John's navel, his hands still on John's perfect arse cheeks. "We can hunt devils TOGETHER. I don't need to share blood to know that I belong with you." He knew this deep in his soul- if he's had a soul any more, that is. As a vampire, he lacked a lot of things that humans did, but a desire to love and beloved was not one of them.

[ihadabadday]

John moved away just a bit, staring down at Sherlock. He chewed his lip, thinking... He wanted. In the very base of him... He knew. He knew that Sherlock was it. It was an odd feeling, and one he loved and loathed and feared.

"I'm not saying yes, yet..." he swallowed. This was such a large secret. But he wanted to share it with Sherlock. It was right.

"But I'll tell you a secret." He leaned down to kiss Sherlock's forehead. "A demon's blood is only poison... If you don't have permission."

[seaweed_writes]

Oh...

OH.

That.. well, that changed everything. If... John wanted it, they could indeed share blood, John could me more than just a blood servant, they could blood bond. And if that was done, nothing in heaven or hell or earth would be able to tear them apart.

Now... Sherlock wanted. He wanted like he'd never wanted before. He'd taken blood servants, humans who catered to his needs and served him until they died or he grew tired of them and killed him. But he found that he didn't want John in that way. He wanted him as an equal.

A partner.

Demons were quite long lived, but he'd never seem a half demon before, and he didn't know if he had a longer lifespan than a human. But he would take as long a he could get with this man.

Sherlock leaned up, and John met him. The kiss was deep and passionate, but not desperate or needy.. If John wanted this as well, there was no need to rush. The had the rest of their long lives.

[ihadabadday]

John pulled back from the kiss and smiled at the vampire. "If you don't mind, I'm going to shift back..." but before he did that, he stretched his wings out, making a pleased noise.

He even let his tail stretch. God what a feeling.

He stepped back and let his power slide over him, his horns and wings and tail fading. Now he was just a shirtless human.

[seaweed_writes]

If Sherlock had to be honest, he actually preferred John's true form. He knew that it took a bit of exertion to keep himself looking like a human, and he wondered why he would want to look like those lowly creatures.

Never mind that he had been one of those 'lowly creatures', though that was over 400 years ago. He'd had plenty of time to get over that.

God, the power that lay beneath that skin, under those small but powerful wings and the sharp mind that lie under those horns.

"You.... don't have to... you know." he said, hating how stupid he sounded yet again. "Be.. human. If you want to be your true self around me..." his voice trailed off.

[ihadabadday]

John knelt down and touched his cheeks, now blunt human fingers running over the smooth skin. "I don't know the coming and goings of people in your flat."

He leaned into kiss Sherlock again, using a bit of teeth into it. The blonde pulled back and smiled.

"We have many years. But I don't want to wait..." he said. John was referring to sex.

[seaweed_writes]

“There are only three regular visitors to my flat. “ Sherlock said. You’ve already met Lestrade. My landlady, Mrs. Hudson occasionally bothers me, and very rarely, Mycroft.”

Sherlock hissed at the use of teeth and nipped back, barely controlling himself from biting down. But he held back.

Of course he knew that John was referring to sex. He had lived 400 years. He knew almost all there was about sex by now.

“Well then.” Sherlock grinned, pulling them both to their feet and taking both of Johns hands. “Let’s not wait.” Without another word he led John back towards his bedroom.

[ihadabadday]

As he followed Sherlock, he let the glamour fade naturally, showing his true form once more. Since Sherlock seemed to like it more.

Once in the bedroom, John sat on the bed. He grinned at the vampire and tugged him down to kiss him.

He ran his hands to Sherlock's hips and squeezed. The power that was under those clothes. He wanted the bruises.