ihadabadday | The Black Book - AU - Locked to seaweed

"You're gorgeous for me. My perfect mate. You're going to give me, us, such pretty children. They're going to be brilliant like you are." He said in a rush. His cock was fully hard and he shifted a bit, putting it on display for Sherlock.

"I want you to give me such pretty children. Fill me with so much of your seed that it has no choice but to catch. And when I'm round and heavy with our child, I'm going to fuck you. You'll feel my swollen belly against your body as I spear you on my cock."

He couldn't help it, he ran a hand over his belly, almost protectively.

He wanted to fuck Sherlock until the vampire gave him everything. "You'll suck my cock and drink from my breasts and my neck. You'll never need anyone else."

"Mmmm.. fuuuuck." Sherlock had to force himself to slow back down again. Oh bloody fuck did he want that, to breed John and watch him grow round with the product of their love, and then let John fuck him while he's huge and heavy and full of their child.

"Nnng.. John.. p-p-please..." just listening to that was almost too much. He sighed in relief when he undid the flies of his trousers and pushed them down, almost releasing his cock- only a thin layer of the soft fabric of his pants stood between them. He kicked his trousers off and his pants went a moment later, showing him fully hard, flushed and already dripping.

"S-s-how me how you will fuck me.. when.. when I impregnate you.. please, John.. I need you."

John moved and got on his knees in front of Sherlock. He licked his lips and then leaned in, taking the head of that dripping cock in his mouth.

He groaned and moved his hand back to tease and brush over Sherlock's hole. He couldn't impregnate Sherlock, but he would show the vampire how he needed to be fucked.

He wanted to ride Sherlock's cock when he was travis, his milk swollen breasts bouncing up and down.

"Ohhh... fuuuuuck." Sherlock did indeed grab onto John's horns. They were short and stocky, and there was not a lot to hold onto, so he compromised and kept his left hand on John's right horn, and put his dominant right hand in John's hair, which he held on tight.

He knew he wasn't going to last long, but John hadn't said that he was going to let him come while he sucked his cock, so he bit at his lip and tried to will his body to not go off like a rocket.

Which was hard when you had someone like John flicking his slightly forked tongue over the tip of his glans.

He pulled off Sherlock as he pushed two fingers into thevampire.

"You're so tight. I should make you wear a plug all the time, so I can fuck you whenever I want. Or rent you out." He teased.

"Would you like to satisfy a hoarder of demons with bigger cocks than my own? If you were human, they'd rip you in two."

"Nnnng...." He was tight, he hadn't been fucked by John in over a week, and that had been in his human form. It'd been much longer since he coaxed out John's demon form to fuck him.

Just the thought of wearing a plug, being so full of John's demon come that despite the plug it would STILL leak out made him groan and shiver. "Yy-yes.. please.." He begged.. "You... can watch me... watch them t-t-take me... Then.. use me to make sure that it's your come and not theirs inside of me.. Then p-plug me up, so your seed won't go anywhere.. Please..."

He wasn't even sure what he was begging for now.. something.. ANYTHING

John nuzzled his hard cock, smiling. "Anything that you want my love. Anything at all." He then added a third finger into Sherlock.

"Hands and claws and tentacles holding you down while cock after cock is stuffed into your abused arse. Or toys. Or tentacles. I bet you could fit ten in your hole."

"Ahhhh..." Another long, sticky dribble of precome leaked from his cock and it twitched, throbbing against John's skin.

Having three thick demon fingers, complete with claws inside your arse was something he had to get used to. John has to be careful, but Sherlock trusted him utterly, and John had never, ever hurt him, intentionally or accidentally- that had been something they had talked about the night they bonded, but it had never happened in the months that they had been together.

God, thinking about cocks and tentacles and who knew what else shoved inside of him made Sherlock groan, and another fat drop of precome formed at his slit. "Yessss.." He hissed out. "Pp-please John. Let me be your fuck toy... I.. I am yours.. body and soul..." Even though he technically didn't have one of the latter.

John pulled his fingers out and stared up at Sherlock. "Bend over the bed." He ordered.

He loved these moments, when all they could think about was their pleasure. The give and the take.

Nothing but the two of them mattered. Not mother, not sire, nothing. It was just them.

Sherlock knew what was coming, he did, and yet, he still always felt that small flash of disappointment when John pulled his fingers out of him. But was always a fleeting feeling, because something much, much larger was about to fill him to the brim.

He walked over to the bed and leaned over it, his knees on the floor and his arse on the end of the bed, his body on the bed itself, his hard, leaking cock was trapped under his body.

"Please John." He begged. "Please plug me, so you can fuck me again and again and I will always be leaking your come out of me." It was a fairly new acquisition, they were getting toys slowly, one at a time, while they figured out what the liked and what they didn't, still feeling each other out while in the bedroom, as they had only been together 2 months. They hadn't even had a chance to use the plug yet. Because both of them were pretty much size queens, they found about the largest plug they could, though it was still not as wide as John's Demon cock. He hoped it would hold enough of his seed inside.

He hoped he was about to find out.

John got up, though a little shaky. Without a word, he went to the closet to retrieve the plug and some lube. He brought it back to the bed before setting it down next to Sherlock.

"Your arse is gorgeous." He whispered as he ran his hands over it.

He picked up the lube and opened it, spreading some over himself and then around Sherlock's hole.

Sherlock licked his lips when John put the plug down next to him. It was a very basic plug, black, in an almost diamond shaped design. It had a very wide base, then a short area where it was much skinnier, then it flared back out to about as wide as the base, and then it tapered to a rounded point. It didn't need to be long, it just needed to be wide to keep Sherlock nice and stretched.

And it was.

He moaned and closed his eyes. Sherlock loved it when John talked dirty to him, but even more when he praised him at the same time.

"Ahhhh!" The lube was cold at first, it was a bit of a jolt to the very sensitive nerves around his opening> But with a bit of time and John warming it with his much warmer body temperature, it became quite nice quite quickly.

He smiled and then pulled his fingers away. John loved seeing Sherlock like this. So needy. So everything. He kissed the small of his back, nipping with his own fangs.

John straightened as he pulled back and grinned. He positioned the tip of his cock at Sherlock's hole and began to push in. And in.

He didn't stop until he was entirely seated in the vampire.

"Ahhhhhh!!" Even after two months of being his mate, even with three fingers of stretching, it still hurt, it still stretched and burned and stung.

And he loved every single second of it.

He shut his eyes tight, moisture pricked at the corners of his eyes. He desperately held onto the sheets under him and tried desperately to rut against the sheets, but it wasn't enough friction to actually get himself off.

The pain ramped up and up and up and just when he was at the threshold, John was fully inside of him, and the pain and endorphin started to switch to pleasure, intense and overwhelming.

"M-m-ove... god.. fuck.. move.. please.." He begged the demon.

John smoothed his hands over Sherlock's hips as his tail wrapped around the man's thigh. "Look at you, so desperate." He cooed, "what do you need?"

He knew. Oh he knew. He wanted to hear it though. He wanted to push and push and then shatter Sherlock. So all that they both knew was one another and nothing else. No one trying to control them, use them as pawns.

"Joooooohnnn..." He whined, not even sure if he could get anything else out than that. He knew that John knew what he needed, and yet, he was still being made to say it.

"F-f-uck me.. John... I need you... P-please..." He shivered at the warm tail around his thigh. It was both grounding and erotic at the same time.

"I... need you... I need you to fuck me and stroke me.. and l-let me come... " The plea ended with a loud groan and he tried to buck at the sheets again, but it was no use.

"I should make you a mold of my cock, so you can have it in you when you're breeding me." John said as he rolled his hips into Sherlock. He groaned at the tightness.

Or maybe a fucking machine as well. That way the desperation his mate felt... He felt.

"Would you like that my mate?" He purred as he slammed his hips forward.

"Fuuuuuckkk..." The response was to both the idea of having a mold of his cock, and the movement of his lover's hips.

"AHHH!" The mix of pain and pleasure at the quick snap of John's hips, his cock slamming deep and fast made his eyes go wide and a scream of pleasure fell from his lips. God, he needed someone to touch his cock.. he was about to fucking explode if he wasn't able to relieve the pressure in his cock and balls.

"Yessss!!!" He hissed out, once again an answer to the movement and the question. "Yes.... please... more... I need... " His voice trailed off

"Touch yourself Sherlock." He whispered as he kept thrusting, "Touch yourself until you come. I won't touch you."

John tightened his hands, letting his claws dig in slightly. He then began to thrust harder and harder.

Sherlock was confused. Why wouldn't John touch him. Had he said or done something wrong? He wanted to ask, but when John started to thrust harder and faster, he couldn't think about anything else but being fucked and stroking himself.

Desperately, he reached underneath his body. He groaned with pleasure at the touch, knowing that it would be sweet relief. All Sherlock had to do was hold his cock, John was so strong with his thrusts that he was throwing his body forward with each jab into him. He would essentially fuck himself.

His other hand clawed at the sheets, but he couldn't get purchase. He was speared onto that gigantic cock, being tossed like a ragdoll while John used and abused him. with each thrust John made Sherlock stroke himself. He could already feel the pressure growing, he knew it would only be a few more strokes..

"Ahhhh... Mm-more.. p-p-please.." He cried. He wanted John to let go, to give him everything, to fill him and fill him and then plug him so Sherlock would never forget what had just happened.

He was close, right on the edge now.. just a bit more...

John panted as he kept thrusting, holding Sherlock. He shivered and bent over the man. "Look how well you're taking my cock. Such a good boy." He praised, "next time you should suck me off. See how wide we can stretch that pretty mouth."

He slammed in one last time as he reached his climax, filling Sherlock with his seed. It wouldn't do anything.

Oh god, the praise.. he loved the praise.. he loved being told that he was a good boy. Between that and the idea of trying to suck off John, being fucked by a giagantic cock and having his movements make him stroke himself, it was all just too much.

"AHHHHHHH!!!" Sherlock threw his head back and howled His whole body convulsed and he screamed again when John slammed into him again, almost sending him off the bed.. His seed painted the sheets under him while John came and came and came, filling him, going beyond filling him, until there was no room and it was leaking out around John's cock, but he was still coming. And Sherlock was still orgasming, the most intense he had ever felt. He wasn't even sure he was going to be able to stay conscious, he was seeing stars, it was so intense.

John grabbed the plug and then pulled out of Sherlock, only to shove the plug into the vampire. He stroked himself, sending more cum all over Sherlock's back.

"Look at you filthy slut... Covered inside and out in cum. I should make you stay like this while you breed me. Filled to.the brim with me." John hummed. "Or should I force my cock in your mouth and throat?"

"Unnnnnnff..." It was a rather jarring sensation for John to pull out of him while he was still in the midst of coming. He grunted when the plug was pushed into him. It was thick, thicker than himself, but not at wide as John, and he was so full that it displaced what was inside of him and even more leaked out of him, down his cheeks and thighs and onto the sheets.

He was filthy, wrecked, John was still painting his back, it seemed to never end. It was all over him now, back and sides and arse and thighs and legs and his own on his stomach and chest and hand.

"A-a-anything.." He gasped, his eyes pricking with tears. "Anything you want, Sir." He was falling fast. "D-d-o what you want with me... please... I am your slut.."

John grinned at that and then pulled Sherlock off the bed by his hair. He forced him onto his knees. "Suck me." He ordered, "I want to see the head of my cock in your pretty mouth."

He was so hard still. The mere idea of all of this. He groaned and moved his tail to push into himself.

The Black Book - AU - Locked to seaweed_writes

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