ihadabadday | The Black Book - AU - Locked to seaweed

"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.

"Yy-yes, Sir." He grunted when he was pushed down to his knees. It pushed the plug deeper and he moaned loudly, his spent cock giving a little twitch. He licked his lips and opened his mouth, flicking his tongue against the glans, tasting salt and sweat and brimstone, liking up the come that was surprisingly still trickling down, the last of his leavings.

And he was still hard.

Fuck.

There was no way Sherlock could take much inside his mouth, he wasn't even sure that he could get the entire head, but he opened as wide as he could and slid forward, getting almost all of it inside before he started to gag and had to pull back.

"I.. I'm sorry, Sir." He said, his eyes downcast. "I will try again." He knew a bit more of what to expect now, and he changed the angle of attack a bit. This time he was just barely able to get the entire glans inside. He couldn't keep it all the way in for long though, so he pulled back a bit, leaving most still inside.

John panted as he moved his tail in and out of himself, shivering. "One day my entire cock will go down your throat. I will be able to slide in and fuck your face. Would you like that?"

He grabbed Sherlock's hair and pulled him forward, forcing more of his cock in.

"I'm fucking myself with my own tail. Would you like to see that?" He asked. His voice was shaky, but still controlled.

Sherlock eagerly nodded. Deep inside he was fairly certain that he would never be able to get that much down his throat, it seemed like a physical impossibility. But for his Sir, he would try. He would be a good boy and try to take all of him.

His eyes went wide, he coughed and gagged when his hair was pulled and more of John was forced inside of his mouth. Tears streamed down his face and he desperately needed air. His body wanted to pull back, but John wouldn't let him. He was going into fight or flight mode, he could feel it.

He heard John's question, and tried to nod, but his body was still trying to get the huge length out of his mouth so he could breathe again.

John pulled Sherlock off his cock and smoothed away the tears. "Good boy. Such a good boy for me. You'll be able to swallow it all one day." He knelt down and kissed Sherlock's bruised, but already healing lips. He smiled.

He then turned around and moved onto his hands and knees. His tail was moving in and out of his hole. So filthy.

Sherlock sniffled. He wanted to be good for his Sir. He wanted to be able to take it all. He knew right then he was going to find a way to practice. He knew that it would take a long time, but somehow, he would figure out how to get past the gag reflex and relax his muscles enough to take it.

He kissed his Sir back eagerly, sighing softly when he pulled back. He could kiss those lips forever. But his gaze was drawn to where John was using his tail on himself. Even with the wide triangle shaped tip, it still went easily in and out. He groaned, watching, entranced.

And he wasn't surprised when his length started to pay attention as well, going from soft to slightly hard as he watched. It was still pretty spent, but it was trying its best to get back into the game, it seemed.

"Do you like it? Knowing that I can fuck myself while fucking you, forcing you to take my giant cock?" John panted. He was still so incredibly hard. He moved one hand to stroke himself.

"I know I could get your cock in my hole alongside my tail." He shivered and rubbed his thumb over the head.

"Soon I want to call some people I know to use you my good boy, shoving their cocks in your mouth and hole, making you swallow their cum."

"Nnnng.." He wanted to answer, but he was rendered speechless, watching John both use his tail on himself and stroke himself. He wanted that.. to know that John's tail was inside of himself while John was rogering him, slamming that giant length in him, over and over.

Well, that was doing it, he was almost hard already. That hadn't taken long, but when you are watching your lover please himself two different ways while telling you all the filthy things that he wants to do to you, well.. that's a bit of a given.

"Yesss..." Sherlock was able to barely hiss, while he started to touch himself as well. He wanted to be Sir's good boy, let his friends use him while John watched him swallow and be covered in them, sticky and used and wrecked and debauched, a plaything for Sir and his friends.

John lifted his tail a bit, stretching his hole. "Be a good boy and put your cock in me. I want you to breed me. I want to grow gravid with our child."

He shivered and lowered his shoulders to the ground, keeping his arse in the air. "Please. Breed me."

Even though Sherlock was still in a major subspace- John had proved to be good at getting him there and keeping him there, he wanted to be good and breed his Sir. He stroked himself a few more times to make sure that he was nice and hard- that didn't take long. '

He was still totally covered with his Sir's come, so he used some as lube and stroked it on him, to slick him up. He crawled over to John and, without any preamble, pushed inside of him. After having that wide, broad, flat tail inside of him, he slid in easily, helped with the.. natural lube.

"Nnng... S-s-ir.." He groaned, pushing all the way in with almost no effort.

John cried out and pushed back. Oh it felt good. So very good. He shivered. "Good boy. Now thrust. Don't stop until you come deep in me."

He wiggled his hips, whimpering. He loved this. Being in control, but he also loved submitting. This bonding was perfect.

"Y-y-yes sir..." He couldn't have stopped, even if he wanted to. Feeling his Sir around him, tight but not overly so, wet and lubed with his own seed inside of him, it was enough to drive him crazy.

He was his Sir's good boy. He was.. He would be a good boy and breed him and give him so much that he had to become gravid. He started to thrust, not even starting slow, he started at a blistering pace. He needed to be a good boy.. he needed to breed his Sir.. he needed to come. Sherlock was grunting and panting with each thrust, going as deep as he could each time.

John had never wanted to have children before Sherlock. But now... Now he did. He wanted a family with this vampire. Regardless of what everyone else wanted for them.

"Good boy... Breeding me so well. It will catch soon." He panted, "I'll grow big with our child. Our brilliant child..."

He kept working his handover his cock, panting. He was close. So he stopped. He wanted to cum all over Sherlock's face.

"Wh... when you come, get something to plug it in me." He ordered.

Sherlock beamed at the praise. He was Sir's good boy. He was doing well.. It spurred him on even more. He could feel Sir stroking himself, and he found that he wanted it all over him.

"S-s-ir... if... I'm g-g-good.. c-can.. I.. have your s-s-eed?" He asked while he was still pounding into him. It had take all of his concentration just to be able to speak those words. He could already feel his bollocks start to tighten up. He knew it would only be a few more moments before he couldn't hold back.

They did have one more plug, it was a lot smaller, so it wouldn't hold in the seed as well, but it should be good enough to let it stay in there until it hopefully caught. At least they both hoped so.

The Black Book - AU - Locked to seaweed_writes

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