ihadabadday | The Black Book - AU - Locked to seaweed

A loud groan ripped it's way from Sherlock;s throat. "You... want me to see how many times in a row I can fill you with myself?" He asked. Sherlock couldn't stop himself now. He took his own cock in his hand and used a bit of spit to lube his hand before he started to stroke in earnest. He was already rock hard, so he had to be careful and go slow.

"What is our record in one night for fucking, I wonder? Do you remember?"

"For filling me over and over with your cock and semen?" He groaned as he thumbed the tip of his cock.

The blonde gasped and rolled his hips into his hand.

"I... Fuck. I think seven?"

Oh, he remembered that night. William had been... 2 or 3, it was close to his birthday. They'd left him with John's mother for the weekend, and John took the weekend off and Sherlock informed Lestrade that he was not available for any reason at all.

They hadn't even gone anywhere, it had been one of those.. 'staycations' though Sherlock loathed that stupid word.

They hadn't done anything but fuck each other the whole weekend. He had no idea how John hadn't fallen pregnant then, but he hadn't. One night was John's, in his Demon form he managed to fuck Sherlock 9 times before they wee both too exhausted.

And then it was Sherlock's turn. He'd managed to bugger John 7 times before he just couldn't go on.

"You turned into a Demon and fucked me 9 times the night before." He rumbled, laying John back and then kneeling over him, rocking so their cocks aligned and rubbed against each other. "I was sore and walking wrong for a week. Even oblivious Anderson noticed, but he knew better than to ask."

Sherlock groaned at the contact between them. "And then I fucked you 7 times the next night. I think I could have gone more if you hadn't shagged me so rotten the night before."

He chuckled and arched up, pushing their hips together.

"Oh... That was a wonderful weekend. I wonder if you can fill me eight, nine or even ten times." John groaned.

"Putting me on my hands and knees and buggering me over and over until all I know is you." He purred.

John hooked one leg around Sherlock's hip, pulling him in. Closer.

"Nnnnnnggg..." Sherlock leaned down and whispered in John's ear, in a low, almost dangerous sounding tone. "I intend to find out."

Without any warning, he pulled away from John, and rolled the man over onto his stomach. His hands went to John's arse, pulling the cheeks apart. "I'm not even going to bother stretching you. By the time the night is over, you'll be so open from my cock that I'll be able to push inside with no resistance at all. "

He leaned his head down and licked a stripe up John's fissure, from perineum, over the puckered hole, then up to where his arse met his back.

"On your hands and knees. I want to fuck you properly."

He gasped when he was forcibly moved. Oh. He loved it. The blonde shivered and moved onto his hands and knees at that order.

He bit his lip when he felt that tongue over himself. Oh. Oh. He shivered and rocked back.

Fuck. Yes. More.

"Sherlock... Please." He begged.

"Please, what, John?" He teased. Sherlock wrapped his hand around his cock and held himself while he teased JOhn's hole, rubbing his head against the hole, and ALMOST pressing in, but then pulling back away.

He rubbed himself against John's arse cheeks, leaving little trails of precome glistening on his skin.

"I want to hear you say it." He almost pressed again, then pulled away a second time.

John whined needily as he felt Sherlock tease him. Torment him. He shuddered and closed his eyes. "Please... Fuck me." He begged.

"Shove your cock in me and have me. Over and over. Please. Make it so my slutty hole doesn't close, just drips your cum."

Like a flash of lighting, Sherlock moved. He used one hand to hold John down, and the other to guide himself as he shoved his cock inside of John- no lube, no stretching, just one quick, hard thrust. At the same time he bit down on John's neck. He knew he had to be careful about draining too much, but he had to feed.

While his fangs pierced John's neck, he rocked hard into John,. There was nothing soft or gentle about it, it was hard and sweaty and needy and desperate.

John cried out against the pillow. Oh fuck. Oh. It hurt, the pain of being stretched open, the fangs in his neck. But he loved it, every moment of it. He shuddered.

Fuck. Oh... fuck.

He clawed at the bed, shuddering with each thrust. Each swallow. Sherlock knew how to send his pleasure higher and higher.

"Yes... That's right... Take it.. take me!" Sherlock grunted and rocked, letting go just long enough to tell him that, then he went back to drinking from John again.

"Mmmmfff.." He licked at John's neck where it was bleeding and thrust harder and harder. He could feel the first orgasm building, growing in him, and it urged him on. He needed to take and take and fill the hole and take John fully.

He was a mess under Sherlock, his cock was leaking and he was sobbing and gasping into the pillow. Oh fuck. Fuck. He shuddered and pushed back.

More. More.

He wanted to be wrapped in his mate. Wrapped in the smell.and embrace. Every part of him.

"Mmmf.... RRRRGG!!!" Sherlock bit down harder. His whole body stiffened and he thrust hard enough to push them both forward as he came. he came and came, deep spurts of his seed inside John's already gravid body.

Sherlock thrust over and over, a little softer each time, until he was spent, and he lay on top of John, now licking at the two small wounds, and staying inside John while his cock softened inside.

John lost control and his human form faded into his demon one. He shuddered and stretched his wings wide.

"Oh... Don't stop." He begged. Though he wasn't sure what he was begging for. Over and over. John clawed at the bed, trying to be careful with his nails.

"Nnnnfff." It was far from the first time that John had turned into a demon while Sherlock was inside of him, but that didn't make it any less strange to feel that magic shifting around him while they were still connected.

He felt the whoosh of air and the brush of the wings against his hair and cheek. Was it possible that John felt tighter around him? It should have been the opposite, but Sherlock could have sworn that John was tighter now.

Sherlock had never really gone fully soft, though he had almost slipped out of John as his cock had softened somewhat, but feeling the power and the magical energy under him and hearing John beg, he pulled out and stroked himself back to full hardness in just a couple of minutes, the he took his cock and pressed it against John's entrance, still leaking come from the first time.

"Don't stop.. this?" He asked, and pushed back in, all the way with one hard thrust and a grunt of exertion.

He muffled his cry into the bed as Sherlock pushed back into him. Oh god! John knew Sherlock was feeling a touch smug from getting him pregnant. Again.

But he didn't want it to stop. He wanted Sherlock to use him and use him.

The mere idea that they could get lost in one another...

As much as Sherlock wished that John didn't have to muffle his cries, there was a child in the flat. Sure, he was upstairs, but the walls were pretty thin, it didn't take much for the sound to travel.
And John tended to be pretty vocal- something that Sherlock absolutely adored.

The pounding was fast and heavy and relentless. He could already feel another orgasm blooming inside of him. He held onto the Demon for all he was worth, nibbling and biting at his neck and down his back and even at the base of his wings as he thrust harder and harder.

"Nnng... you.. want me... to come again.. d--don't you.. fill you up and keep bb-reeding you.."

John wrapped his tail around one of Sherlock's arms to keep him close. Close. He wanted the vampire in him, always. Taking him. He shuddered, his own body tight. He hadn't reached his climax yet, wanting to wait for Sherlock. Or something...

"Please..." he gasped, "Don't stop. Please. I need you."

He was spiraling down and down.

It never ceased to amaze Sherlock at how John could use being a Demon to his advantage. He had wings to wrap around and horns to hold onto and a tail that was practically prehensile. He could use them all, and they could also be used by Sherlock to his advantage.

Especially the horns. He loved holding onto those.

But this time it was John pressing the advantage, using his tail to his own advantage.

"I'll never stop.." He grunted through his teeth.. "Can't stop.."

Sherlock felt himself building and building until...

"NNNNGGGG!!" He thrust hard again, biting down at his back not to feed but just to hold on while his second orgasm hit him like a freight train He rode it out, thrusting with each pulse of his seed inside of John until he was spend again, panting on his back and still miraculously inside.

John groaned as he felt Sherlock fill and fill him. He shivered and let out a breath. His mate was amazing and... Amazing. He turned his head to the side to take a breath. His own cock was hard and leaking against their bed. They'd have to change the sheets before they went to sleep.

He shifted a bit, keeping his tail wrapped around Sherlock's arm. "You feel so good in me..." John managed. Sherlock had just fucked him silly, twice.

Sherlock went from biting at John's back to licking and kissing at his sweaty skin. With the slight movements, his now soft cock slipped out of John.

"I'm going to need a few minutes before I can try that again." Sherlock smiled, still staying behind John, but now starts to use his hands to rub up and down his sides, his thighs, almost everywhere except his cock.

"Do you want to come now, John, while I catch my breath?" He asked, barely brushing a finger over the very tip of John's cock, just a tiny little ghost of a touch.

"It seems almost unfair that I have come twice, and you not at all."

"No..." John shook his head, "No. I don't want this to end." He was worried if he came, that would be the end of it.

He stretched under Sherlock, pushing his hips back and reaching forward with his wings spread. His tail still held onto his mate's arm.

All of this was perfect. Wonderful. He shuddered and took a breath.

Sherlock chuckled. "It wont end if you come, you sexy Demon." Sherlock rubbed his other hand up and down John's tail. "Of course, it will mean the end of these sheets, but I think that's already a given."

He looked under John and licked his lips and groaned. That huge Demon cock was leaking copiously, probably more than Sherlock had even come twice. "Fuck." He groaned. "That cock of yours..." He knew he wanted to try to beat his record of fucking John but damnit, that cock. It felt amazing to be speared open by it and filled to overfull by all the come in those large bollocks of his.

John whimpered and pushed back towards him. He ached and wanted. He felt himself spiraling down and down. He wanted nothing more than to please Sherlock. Make the vampire happy. He shuddered and moaned into the pillow.

"Any... Anything you want. I'm yours." He whined.

Sherlock leaned in and whispered in John's ear. "And I'm yours, my love." He punctuated it with a kiss to the shell of his ear.

"And right now, I want to know what YOU want." He kissed again. "I'm so happy. You're carrying our child again. I want you to be happy. I want to show you how proud I am of you and how happy I am and how much I love you. "

The Black Book - AU - Locked to seaweed_writes

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