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]

John smiled and stepped closer. He nuzzled Sherlock's neck, inhaling the vampire's scent. "Mmm... We can do that." He pulled back and smiled. He then reached down and palmed his soft cock.

"I do want to swallow you down, feel you harden in my mouth." John knew what words could do.

[seaweed_writes]

"Nnnngg.." Sherlock moaned and closed his eyes when John started to grope him.

Without really thinking about it, he bucked a little under John's touch. To his absolute amazement, his cock was.. at least trying.. to show some interest. It pulsed and twitched in John's still human hands.

"J-John..." He stuttered slightly starting to think that if the half demon kept this up, he may just get his wish..

"Tell me.. more.. tell me all about it." He loved dirty talk when it came to the bedroom, both giving, and recieveing it I w-want to hear about everything that you will do...".

[ihadabadday]

John went to his knees in front of Sherlock and looked up. He ran his hands along his thighs and smiled. "I'll lick the tip of your gorgeous cock. Sucking your pre-come away. I'll run my tongue under your foreskin and then pulled it back with my hand so I can wrap my lips around the head."

He leaned in and licked at Sherlock's soft cock. He could see the interest stirring in the vampire. He smiled and nosed at his testes. "I could lick your tiny hole open and slide a slim vibrator in, press it against your prostate."

[seaweed_writes]

"Ohhhh... fuck.." John's words were indeed having an effect on Sherlock. He shut his eyes tight and leaned in so he could brace himself on the wall, he wasn't honestly sure if he would be able to stand any other way, since all the blood in his body seemed to be rushing to his cock, which was already starting to fill and harden.

"Joohhhnnn..." It was the neediest that Sherlock had ever sounded. This was so good, but it wasn't near enough. "I...h-h-have a vibrator.. in... t-the beside table." He had gotten it recently, and he wanted to thank whatever god or devil was watching over then that he had. He'd been rather pent up recently, after having gone through a rather long dry spell.

That seemed to be over, now.

And he wasn't sure that he could trust his legs to actually stand on their own without leaning like he was now, much less walk to the beside table and back.

[ihadabadday]

John pulled back and sat back on his heels. He looked up at Sherlock and grinned at him. "Then go get it. I want it in you when I ride your long cock." He told the vampire.

He smiled up at his mate. He had the urge to take and take and take until he was sated. He knew there was a low probability that he would actually be impregnated... But the mere act of taking the seed into his body... It was enough to send him spiralling.

[seaweed_writes]

Damn him, Sherlock thought with a bit of a smile. He knew he could hardly walk.

But somehow, he managed to walk- or really more like a shuffle- to the bedside table, where he grabbed the vibrator and came back to where John was still kneeling, naked and still slightly damp, and already starting to get hard. It was quite easy despite his position to see the thick, long length already jutting out of those damp, thick, sandy brown curls.

Sherlock was feeling a bit naughty though. Instead of turning it on, he just stood there and waited for John to say or do something.

"Well?" He asked, a bit of sass in his tone.

[ihadabadday]

John watched him and grinned. "Well what Mister Holmes?" He moved one hand to wrap around himself. He stroked himself slowly, leaning back, to give Sherlock a show.

"I want to ride your cock until I come all over your chest. I want to feel your seed paint my insides. Knowing there was the tiniest possiblity that I would carry your child."

[seaweed_writes]

Sherlock's eyes were wide open now, watching the 'human' John stroke himself and knowing that really, his true form was more than twice that again, just hiding.. waiting to take or be taken.

He licked his lips, then reluctantly moved his eyes from John's cock, to the vibrator in his hand, and then to John's eyes. "I... I thought you wanted to suck me while I use this?" He said holding the vibrator up. It was a swift and hard change of direction, the whims of this half demon were fleeting, apparently.

"So, which is it, Mister Watson? You can't do both.." He teased a bit.

Even as he teased though, he shivered. What if.. what if he really was able to impregnate John? What would that be like? How would look, heavy with child. Could he even look like a human, or would he not be able to shape shift while pregnant? Not that Sherlock would mind of course.

[ihadabadday]

John chuckled. "I certainly can do both. I never said I would suck you to completion." He answered before shuffling forward a bit.

"Suck you until just before you cum. Then pull off and wait for you to catch your breath. Then I'll mount you and ride you. All while that toy is nestled in your arse."

John grinned at him and licked the top of that hard cock. "What do you say?"

[seaweed_writes]

The only answer he could give was a grunt. Between John sucking him off, and the toy in his arse, he wasn't even sure he could make it more than a few short minutes.

"Will you..... can you be yourself... please?" He asked, shifting a bit from foot to foot. He was rock hard, just with the thought of it, his cock jutting out proudly in front of him, long but thin, with its slight upwards curve.

He'd never admit it, but in addition to much preferring John's true form, the idea of being covered in that much come... well it made him shiver again, his cock gave a sympathetic twitch.

[ihadabadday]

John looked at him and swallowed. "Not yet. I want to ride you as I am right now. Everything will just get in the way."

He reached up and took the toy from Sherlock. John made sure the vampire was watching as he took it between his lips, sucking slowly. He began to move his head up and down over the toy.

After just a few minutes of that, he pulled back. "Would you like this in your arse?"

[seaweed_writes]

He was disappointed, but it was John's choice, so he nodded.

Those thoughts quickly dissipated though, when he watched John fellate the long toy, its pitch black and thin, but has ridges up the shaft and then ends in a flared bullet shape. He wanted nothing more than to have that in his arse.

Well. maybe there was ONE thing..

"Yes, John." He groaned out his answer. He could swear that John was trying to make him come before anything even started..

[ihadabadday]

John smiled and moved the toy to tease at Sherlock's hole. "You still seem loose from the fucking I gave you our first night bonded..." he mused before pushing the vibrator in as he took the head of Sherlock's cock in his mouth and sucked.

He began to move his head up and down, moaning. Yes. Perfect. He loved the way Sherlock tasted and filled his mouth.

[seaweed_writes]

Sherlock had wanted to give a snappy answer, but the moment the toy, still not even vibrating yet, went up his still slightly loose arse, he keened and bit his lip so hard he tasted coppery blood.

And then.

"OHhhhh.. Fuuuuuuuuck.." Sure, he'd ordered people to give him blowjobs before, used his Thrall on silly humans to do his bidding, but none of them had ever felt like John's warm lips on his cool cock.

He fought against bucking into John's mouth, taking him and fucking him right here, and letting him taste the come of a vampire. Instead he took John's hair in his hand and gripped tight, pulling it none too gently.

"I'd be tugging at your horns right now if I could.." He managed to moan out. "Would you like that? Are they sensitive when they tugged while you are on your knees, servicing someone?" He wanted to sound commanding, but it was hard to do when you were getting fucked and sucked at the same time.

[ihadabadday]

John moaned when he felt that hand tug his hair. It felt so good. Just as Sherlock felt good in his mouth. He moaned and slowly began to work his head back and forth. He didn't want Sherlock to get off too early.

He gasped at the words. No one had done that before. He looked up at him, shivering a bit.

Those words... he whimpered and continued moving.

[seaweed_writes]

Oh, Sherlock had heard the whimper, and he took full advantage of it.

Between the vibrator in his arse and John sucking him off, now decidedly slower unfortunately, he couldn't lean down much, but he leaned as much as he could and whispered... "Why don't we find out?" His voice was soft and smooth and deep like a dark chocolate waterfall. "Show yourself, and we can find out together...."

[ihadabadday]

John looked up at him and then pulled off Sherlock. He wanted to give in, let Sherlock play with his true form. But goodness did he want to ride that cock. He licked the head, running his tongue around it.

"Get on your back Sherlock..." his voice was hoarse, but there was no power behind the words. He he wanted nothing more than for Sherlock to hold his horns and fuck his face.

[seaweed_writes]

Sherlock sighed. Had he fucked up again? Been too demanding?

His fears were assuaged when John licked at his cock one last time, and then leaned back and spoke to him.

Sherlock was actually almost a bit glad that John had pulled off when he did, he wasn't really sure he could last much longer. He climbed up on the bed and laid down on his back, spreading his legs slightly. His cock was hard and fully erect in the air, flushed a deep red and leaking at the tip, the entire length moist with John's saliva.

He was going to get John into his demon form and fuck his face one day, he promised himself that.

But right now, John was going to impail himself on him- at least he hoped so.

[ihadabadday]

John groaned when he saw Sherlock move. He got up and made his way over to the bed. "You're going to fuck me while being fucked." He took Sherlock's cock in hand and lowered himself down ok it. He gasped when he felt it breech him.

Oh.

He shivered and released Sherlock and pushed down until his arse met the vampire's hips. Fuck. He was full. So full. John reached under them to turn on the vibrator before he started to ride Sherlock in earnest.

[seaweed_writes]

As with the time before. there had been no stretching, no preparing, just John, hot and wet and tight John all around his cock, enveloping his length with the deepest, darkest part of himself.

He'd been so busy thinking about John's hand on his cock, and then his body opening up to him that it took a moment for John's actual words to come to him.

"Wha.." was all he had time to say before John turned the vibrator on, and Sherlock SCREAMED. It was right on his prostate. His eyes went as wide as saucers, and he bucked up hard enough that if John hadn't been fulled seated, he might have actually been bucked off.

Sherlock was beside himself- the vibrator inside of him buzzed and hummed and hit just he right spots. He bucked and arched and thrust as hard as he could up into John, the sensations from both fucking and being fucked were almost overwhelming, almost too much, so close to the edge of overstimulation without being there.

"AHHHHHHH!" he could only cry and scream and rut and thrust and buck and try to not spontaneously combust with the combination of sensations.

[ihadabadday]

John gasped as he moved with Sherlock's wild thrusts. It was so good. He groaned and panted as he moved with them.

"I want you to come deep in me. Paint my body with your seed." He groaned.

He braced himself on Sherlock's thighs as he continued to move his cock bouncing as he did.

[seaweed_writes]

Though Sherlock heard John's words, he couldn't have stopped even if he'd wanted to.

And of course, he wanted nothing of the sort.

He was way too far gone to do anything but ride it out now. All he could think of was the end the release, the blessed, blessed explosion of pleasure.

"NNnng... Johhhhhn.. JOOOOOHHN!" He screamed out his lover's name as he came, the vibrations at his prostate and the demon's hot hole just too much to hold off any more. He literally pushed John up off the bed as he came inside of him, ropes of his thick, warm come coating John's insides, painting him, filling him.

[ihadabadday]

The intensity of the fucking and feeling Sherlock come inside him... John shouted as he climaxed. There wasn't as much release as when he was in his demon form.

He whimpered and then lay on top of Sherlock. His arse was smarting. But it felt so good.

He shifted and nuzzled the vampire's neck, licking where his pulse point would be. "You felt so good in me, breeding me..." he whispered into his ear.

[seaweed_writes]

Even though it wasn't near as much come as when he was in his demon form, it was still a nice amount, and since Sherlock was on his back it fell in a broken line of puddles from his chin and sternum down to sticky globules in his dark, thick, curly pubic hairs.

Sadly, as John lay on top of him, Sherlock slipped out, and he could feel his own come dribbling out of John's arse, over his bollocks and in his hair, mixing with John's, and down his inner thighs.

There was more than a little bit of Sherlock that wished that he would turn into a demon with his sharp canines and bite him, like he had the night they had bonded. But that thought faded away when John spoke.

"Breeding?" He asked, slightly confused. "Did I.... did it.." Surely he hadn't actually bred John... had he? And would John know? He had no idea about how half demon physiology and reproduction worked. Would he know if he was?

[ihadabadday]

"I don't know yet." John admitted, "it is highly unlikely. Like single digit probability."

"If you don't want children, I can get us some condoms." He swallowed, almost unsure what to do now.

John shifted a bit, flushing.