Shadowhunters || Jasmodeus || The Mark of Asmodeus II || Jasmodeus || Shadowhunters

Title: The Mark of Asmodeus II – The Mark of Jace

Fandom: Shadowhunters: The Mortal Instruments

Disclaimer: All rights to the Shadowhunters show reserved to Ed Decter, the books the show is based off and its characters belong to Cassandra Clare. This fanfiction on the other hand is entirely mine. No money is made with this, though reviews are more than welcomed.

Tags: m/m, established relationship, fluff, possessiveness, explicit sexual content, anal

Main Pairing: Asmodeus/Jace

Shadowhunters Characters: Jace Herondale, Asmodeus, Alec Lightwood

Summary: Jace is healed from the poisoning and adjusting to Asmodeus' claim and his magic.

The Mark of Asmodeus II

The Mark of Jace

It was both practical and funny to be a Shadowhunter and have demons cower before him and attempt to skitter away as fast as they could. Demons could sense the Mark of Asmodeus, Asmodeus' sigil burned into Jace's chest. In fact, it would warm slightly whenever he neared demons while on the surface world. Didn't do that in Edom, thankfully enough, because that would grow old fast. But up here? It was like a warning. A warning for Jace, which was incredibly handy during a demon hunt quite frankly, but also a warning to the demons. The slight warming was a side-effect of the sigil emitting a magic pulse. One that let the demons know that Jace was Asmodeus'. That he had been claimed by the king. A thought that still send a thrill through Jace.

He was grinning, buzzing with excitement, as he returned to the Institute. It was a great feeling to be back home. Both, the Institute but also generally the mortal plane. Though he might have enjoyed Asmodeus' company and attention, and even the demon sparring sessions Asmodeus had arranged for him, it wasn't the same as going out on a hunt. Not to mention, he had missed his family. For weeks, he had been stuck in Edom, away from those he loved.

"Hey, Alec," Jace stuck his head into Alec's office.

Upon seeing his parabatai, Alec perked up. Weeks. Weeks with Jace gone, with Jace nearly dying, not knowing if he would see his parabatai ever again. Alec got up and walked around the table, pulling Jace into a tight hug as soon as he was within reach. Ever since Jace had returned, every time he saw his parabatai, it was like this. An all-consuming hug. And Jace wasn't going to complain about it, he had missed Alec just as much. Smiling, Jace buried his face in Alec's neck.

"Did the mission go well?" Alec asked, once he was ready to let go of Jace.

Jace snorted softly, shrugging. "Honestly, it's ridiculous. Ever since I got the mark, demons run away from me. Which, does make the job easier. I can just herd them toward the others."

Alec hummed, furrowing his brows. When Magnus had returned from Edom with Jace and told him what had happened, there had been very mixed feelings for Alec. The overwhelming relief that Jace's life had been saved, but also the suspicion concerning Asmodeus' intentions. He knew from Magnus about the demon, so the logical conclusion was that Asmodeus was using Jace as a bargaining chip against Magnus now, trying to get a foot in with his son. But seeing Jace, especially when he talked about Asmodeus… Alec had never seen Jace like that. Happy. In love.

"Are you coming home with me, eat dinner with Magnus and me?"

Alec was trying to make up for lost time, spending more off-time with Jace now. And that was nice, it was good spending time with his parabatai again. But there were other people Jace wanted to catch up with too – Maxie, Izzy, Clary, even with Simon was spending more time now, training the mundie turned vampire. And, of course, Asmodeus. He'd gone back to Edom, to visit the king's palace, repeatedly now. A few times, Asmodeus had also come to the Institute. And one very awkward dinner had been shared between Magnus, Alec, Jace and Asmodeus at the loft.

"I'm afraid you'll have to eat alone," Jace grinned just a little bit. "Asmodeus is taking me out for dinner and he said he has a 'surprise' for me."

Alec looked at him doubtfully, as he usually did when it came to Asmodeus. Jace didn't take offense to it. He knew how wild it was that he was dating a demon king, and he understood that Alec was coming from a place of protectiveness. His hope was just that, given time, Alec would warm up to Asmodeus, see that the king wasn't working an angle.

"Give me a call tonight then?" Alec suggested. "Let me know what the surprise was."

Jace nodded. And that wasn't even just about keeping tabs on Asmodeus. Alec just liked to know Jace was safe. Which was why he'd come here first thing after the mission, let Alec know that he was still in one piece. Jace had died, Clary had brought him back, just for Lilith to poison and nearly kill him again. It was completely understandable that Alec was very, very, very protective of his parabatai right now, and Jace was happy to indulge him. He was glad to be alive, and he was glad to be back here, with his parabatai, and everyone else he loved and had missed.

/break\

Dinner was, as always, a real treat. Though Jace wasn't entirely sure where Asmodeus' riches came from, they were plenty. And he liked spending them on Jace. Not entirely selflessly so. After all, the dinner they shared at the high end restaurants all over the world, Asmodeus got to enjoy as much as Jace. And every piece of jewelry and tailored clothes finding its way onto Jace's body, Asmodeus got to enjoy the sight, and the additional claim. The demon was very possessive. Everything on Jace that spoke of the king's claim pleased Asmodeus immensely.

Jace wasn't going to admit that this possessiveness pleased him. Sometimes, a little doubt crept in. When he heard the way people at the institute would talk behind his back, when he saw the concern even on his loved ones' faces. That maybe it was a long-con after all, maybe Asmodeus would dismiss him now that he had his freedom. So every bit of claim from the king reassured him that no, Asmodeus wanted him. If it was only his freedom he desired, he could have left already.

Jace's eyes wandered down to the ring on his finger. The sigil of Asmodeus was delicately carved into it. Like it wasn't enough that the sigil was sitting over Jace's heart, on his chest. Then again, not everybody got to see him shirtless, the ring was more easily noticed. Possessive demon.

"Dinner was lovely," Jace noted, his fingers tracing the rim of Asmodeus' sleeve.

The king's eyes drifted down to Jace's hand, an amused smile tugging on Asmodeus' lips. His angel was too adorable, he would never ask for something as childish as holding hands. Asmodeus slipped his hand into Jace's, linking their fingers, because he knew what Jace wanted even if Jace wasn't going to voice it. Pleased did Jace lean into him at that. So easy to read. At least for Asmodeus.

His eyes took in all the little details on Jace. His shirt was unbuttoned enough that from this angle, Asmodeus could look down at just a piece of his sigil peeking out. There was the amulet around Jace's neck that Asmodeus had given him two weeks ago. The dark-red suit and black dress-shirt that Asmodeus had tailor-made for his consort, which had been a delightful afternoon spent with a flute of champagne in his hand, getting to watch Jace pose and try it on.

His Shadowhunter was beautiful all on his own, but Asmodeus delighted in prettying him up. The washed-out jeans and worn-out shirts he wore at work had a certain appeal, but a ten thousand dollar suit looked all the finer on his pretty angel.

"Where are you taking me?" Jace sounded impatient.

It made Asmodeus smirk. His Shadowhunter wasn't used to being spoiled and he was soaking it up. However, he was not the patient kind, so if Asmodeus teased him with a surprise or gift, then Jace would grow endearingly antsy. It made spoiling him all the more fun for Asmodeus. With their linked hands, Asmodeus pulled his lover closer, close enough to kiss his temple.

"Patience, beloved."

"You know exactly that I'm not good at that, Charming," Jace narrowed his eyes.

"Oh, you mean because you always force me to tie you to the bed if I want to draw our love-making out?" Asmodeus' voice was low and sultry, making Jace shudder. "Just because you can't keep your greedy hands to yourself and want to flip us over so you can ride me if I don't move fast enough? Which, I do enjoy that very much too, but if I want to take you apart slowly, you have to lay still."

Jace's eyes narrowed further and his cheeks took a beautiful pink hue. The impatience of the young. Asmodeus wondered if his Shadowhunter would grow more patient with the centuries, or if this was going to stay the same. Mh. Peculiar, but Asmodeus suddenly couldn't wait to find out, feeling impatient himself for the first time in a long time. Impatient for the eternity with Jace that laid ahead of him. His consort was perfection, truly made to be his.

"Here we are," Asmodeus hummed softly as they reached the building.

"The… Empire State Building," Jace blinked as he looked up. "What… are we doing here?"

Asmodeus smiled teasingly as he guided his lover inside, greeting the concierge and heading toward the private elevator. Jace kept trying to stare a hole in his head, but Asmodeus stayed strong until they were just a few floors from their destination, he caved to the cute glare.

"Hotels are quite impersonal and it is growing boring, to me, to take you to a different hotel every time. And your… institute… is simply not worthy of a king and his consort," Asmodeus made a face at the thought of that place. "It has been a few weeks now, and I know this is your home, so I have decided it's time for me to get my own place. Make a home here too, give you a place to come to whenever you feel like it, even if I am not in New York myself."

"You… got a place?" Jace blinked, looking stunned. "For… us?"

"Yes," Asmodeus smiled pleased. "You are my consort, Jace. And I think we need a place of our own, that doesn't feel like a… frat-house full of soldiers."

"You really hate the institute," Jace huffed amused.

"I hate how entitled everyone is to your time when you're there," Asmodeus actually glowered at that. "I can't have you for more than two hours without someone knocking at your door, wanting to spar, patrol, asking for your time, help or attention. And hotels are nice, but… not home."

"Your palace is home."

Asmodeus bit his lip, wondering if his Shadowhunter even knew what he was doing to the king. Calling the palace home. Not just Asmodeus' home. Just home. Leaning down, Asmodeus kissed the top of Jace's head just as the elevator doors opened.

"It is, but…" Asmodeus paused for a moment. "It's Edom. And it was my realm first. Your home is this world, and I think that we need a home in this world, in this city of yours. A place that is ours."

Jace looked at him surprised, before his attention was drawn to the penthouse. The couple walked in and Jace's eyes didn't even know where to look first. It was breathtaking. So spacious, modern, with expensive looking furniture and a wide window-front that gave them a stunning view over all of New York. Jace was immediately drawn toward the windows.

"That's… beautiful," Jace's voice was an awed whisper.

Asmodeus came to stand behind him, pressing against Jace's back. "I thought you might like it. I wanted us to be able to oversee your city, just as we oversee my realm from our palace."

Jace shuddered just a little at how Asmodeus called it their palace. Turning around, he leaned against the window and pulled Asmodeus into a deep, passionate kiss. The wall was half window-front, though to their right was a door leading out onto a large balcony, which was definitely where Jace was going to spend his mornings. That view was breathtaking. His fingers entangled in Asmodeus' hair, while Asmodeus' hands rested on Jace's hips.

"I want to take you in front of all of New York," Asmodeus whispered into his ear.

Of course he did. Jace huffed amused and bared his neck. Asmodeus' lips found it immediately, kissing and scratching his teeth over it. Marking his territory. With his arms around Asmodeus' neck did Jace hold onto his lover for support so he could draw his legs up, hooking them around the king's waist. Large hands came to cup the underside of Jace's thighs, slowly wandering toward his ass. Holding, squeezing, groping. A gasp escaped Jace's lips as he tilted his head back.

"Do your worst, Charming."

"Do not challenge me," Asmodeus' voice was a dark, foreboding warning.

Laughing softly, Jace nudged his lover's face so he could get a proper kiss. A deep and passionate one that left Jace's lips red and swollen and his cheeks flushed in a most delectable manner. His eyes were hooded and dark and simply looking into those mismatched eyes made Asmodeus want to kiss him again. The cocky grin on Jace's lips however stopped him, telling him that there was something his love wanted to say. While he waited, he cupped Jace's ass more firmly.

"You think I can't handle what you have to give?" Jace's voice dropped. "Am I not consort to the king? Do you think your consort can not handle what you have to give?"

"Oh, you are provoking me," Asmodeus growled delighted.

The demon used his magic to make their clothes disappear, leaving his beloved pinned against the window entirely bare. While one of his hands held tightly onto Jace's thigh, his other slipped beneath, reaching for his lover's hole. A gentle caress, teasing it, making Jace whimper.

"Don't be a tease, deliver on your promise," Jace growled. "Or else I'm getting down here, going to push you onto the couch and ride you for all you're worth, Asmodeus."

Mh. Jace was always serious when he used Asmodeus' full name. Most of the time, he called Asmodeus 'Charming', which had stuck since their very first meeting and it pleased Asmodeus immensely. Or by Asmodeus' outside persona – because introducing himself as Asmodeus, King of Edom didn't work too well with mortals and, to make it easier on his love, he posed as a warlock when it came to the institute. Ashema Deva. Or, Ash, as Jace liked to call him. Asmodeus embraced the nickname, once again. Never before had he gotten nicknames, after all. It always 'my king' or 'my liege'. So he loved having that, he loved his consort.

"You are so…" Asmodeus trailed his lips along Jace's neck. "Impatient."

He pushed a finger in, gladly embraced by his lover. Jace always sucked him in so well, so greedy for Asmodeus. And Asmodeus was happy to oblige. A second finger slipped in and he started pumping them in and out, slow and still teasing, spreading his fingers to open his love up.

"You look lovely like this," Asmodeus whispered pleased.

Jace, naked pressed against the large window, with all of New York spreading out behind him. Gorgeous. Leaning in, Asmodeus kissed his consort once again, deep and greedy. Jace's fingers entangled in Asmodeus' hair, holding him close. Asmodeus rewarded him with a third finger.

"C'mon, Charming, that's enough," Jace's voice had a whine to it.

Asmodeus absolutely loved pushing his lover into that needy little whine. Pulling his fingers out, Asmodeus grabbed Jace more firmly by the ass, pulling his cheeks apart and guiding him down so he could enter Jace. Even after all these months, Asmodeus still relished in every time that he got to be inside his lover. So tight and hot and perfect, as though he was made for Asmodeus. He held onto Jace, pinning him to the window and fucking into him hard and earnestly.

Asmodeus smirked against Jace's cheek. "The perfect way to break in the new place."

"I dunno, I would have maybe started in the bed," Jace huffed amused, burying his face in Asmodeus' neck. "But hey, we can start here, work our way through the penthouse."

"I love the way you think, beloved."

Stealing another kiss, Asmodeus picked up the pace. He pulled out nearly all the way before thrusting in again. Thrusting in hard, sharp angles, deep into his lover. Drawing all the most beautiful sounds from his consort, making Jace arch his back against the window. Asmodeus drank in the sounds and sight, fucking Jace with abandon. Moans spilled from Jace's lips as his orgasm was building up, the friction of his cock rubbing against Asmodeus' stomach every time Asmodeus thrust into him, enough to make him come. He clung tightly onto Asmodeus as all his muscles contorted and then went lax as he came all over his boyfriend's chest. Asmodeus groaned as his consort tightened around him, making the demon come deep inside Jace.

"Welcome home, love," Asmodeus grinned pleased.

/break\

Jace groaned softly as he rolled over, stretching wide. Every single muscle in his body was sore. After the window, they'd tested the couch, then Jace had made them lunch, which had led to sex on the kitchen table, then they had tried to take a shower, which included a blow-job for Jace. In the end, they'd finally reached the bed. Where Jace returned the blow-job favor.

The view through the window-front in their bedroom was as stunning as the view from the living room. Jace smiled softly as he watched the sun rise over New York. From this vantage point, he did feel like a king. Like New York was his domain. His eyes were drawn to the sleeping actual king next to him. Reaching out, Jace started to run his fingers through Asmodeus' hair.

"How are you already awake? Did I not do enough to knock you out until noon?"

"What can I say," the cockiest grin spread over Jace's lips. "I am the consort of the demon of lust. Gotta keep up, if I want to earn that title, mh?"

Leaning down, he stole a kiss from the demon king. Asmodeus grasped Jace's neck, pulling him closer, until the blonde was basically laying on top of him. Jace relaxed against him, smiling. Adjusting a little, Jace rested his head on Asmodeus' chest and pulled the blanket over them both. It was a bit chilly, they maybe forgot to close the balcony door after the midnight fuck on the balcony and now there was a draft all the way to their bedroom thanks to the open bedroom door.

"You really got us our own place," Jace whispered in awe.

His fingers wandered over Asmodeus' chest while Asmodeus played with Jace's hair. Purple mist started to gather around Jace's fingers as he concentrated on the magic inside him. Ever since Asmodeus had claimed him, a bond had been building between them. Strengthening with every day, even more so when they were physically intimate – which figured, with the demon of lust. It was similar to the parabatai-bond in that Jace could feel someone else's emotions, yet it also felt completely different. And with it, there was this pulse of Asmodeus' magic bleeding in. The stronger the bond grew, the more access did Jace have to the magic.

"You're getting good with my magic," Asmodeus commented impressed.

"Ye—eah," Jace tilted his head to grin at his lover. "Magnus has been teaching me how to control it. Ever since, uh, it kind of accidentally burst out during a mission. He chided me for like an hour, that if I already had access to your magic, I should have started to learn to control it."

"Mh," Asmodeus looked fondly at his consort. "You could have asked me too."

"I didn't want to bother you with it," Jace shrugged. "You're the king of your own realm. And I don't… Quite frankly, I doubt we'd get anything done because your dirty mind would go to teacher/student scenarios and we'd just end up having sex."

Asmodeus' eyes darkened as he kissed Jace. "Would that be so bad?"

"For having fun? No. For me actually learning? Yes."

Jace huffed with a smile and settled down against Asmodeus again. Home. This was home. Not the penthouse, that was still so new, but here, in Asmodeus' arms, with Asmodeus. He was home.

~*~ The End ~*~


Author's note: I got a comment on one of my other Jasmodeus fics and it sent me down the rabbit hole of rereading my Jasmodeus fics and when rereading this one, I was left thinking "well, no, this is missing something", because... there was supposed to be smut, there was supposed to be more spoiling of the Jace, there was also supposed to be a Alec-Jace scene, I can only assume that due to its nature of being a prompt fill, I ran out of time to put all that in when originally writing it due to the deadline. So. Have a second chapter that's inexplicably longer than the first, to make it all it should be! :D"