The Dragon King's Era: The Dragon's Nerve

Natsu x Kyouka

Summary: Natsu Dragneel becomes a prisoner of Tartaros after being frozen by Silver; will the heat free him of restraints?

Disclaimer: I don't own Fairy Tail.

Installment Tags: Demon, Torture, Overstimulation, Sadism

Confined deep into Cube's lair was a pink-haired young man stripped off his clothes, leaving only a pair of underwear on, arms tied up with the magic cancelling cuffs over his head as well as his ankles that spread his legs into a stance. His head hung low, unconscious with his surroundings. After losing the encounter with the Ice Devil Slayer, Natsu Dragneel was taken prisoner by Tartaros.

The demon who took charge in keeping eye on him was Kyouka. She was a member of the Nine Demon Gates, and she had heard what happened when she was in progress of extracting Jellal's whereabouts from the scarlet-haired woman from the guild Fairy Tail. Kyouka sneered, feeling disgusted at lowly human wizards trying to hinder them from their purpose; the resurrection of E.N.D. Fueled by her feelings, she commanded Yakdoriga to look after the girl.

As she entered the cell where Natsu was cuffed, she narrowed her eyes, examining the boy in front of her. Kyouka took a few steps closer, propping his chin up that stirred the man away from unconsciousness. Natsu's eyes opened a little, wrists budging as he becomes slowly aware of the situation.

"Oh, awake I see." The female demon smirked, tightening the grip of her slender fingers on Natsu's cheek, her sharp fingernails pressing hard on his skin that made him wince slightly.

"G-give… Erza.. Mira.. back." He mumbled through gritted teeth, preventing her to sink her fingernails further. It gave him a small wound, blood flowing slowly from it to the demon's fingers.

"That's their names? Those girls are indeed beautiful… too bad I ruined them." Natsu's eyes widened, glaring at the woman in front of him. Those words were ample enough to fire his anger, but he couldn't seem to activate fire or anything that uses magic. Kyouka chuckled, easing up her hold on the dragon slayer's cheek then trailed her finger down to his chest where she made her curse active.

"You...! AH-!" The man was cut off by an intense pain coursing through his body, any little movements made his body ache. T-This is her power? He tilted his head back, groans of pain coming out from his lips

"It's time to ruin you too…" She whispered, amplifying the pain sensitivity of her prisoner. Natsu gritted his teeth, thrashing and pulling against his cuffs. His determined onyx orbs pierced through the female demon which made her want to play with him some more.

"F-Fuck you, I'll never…" He gasped, and the hurt subsided. Kyouka licked her lips, using her enhancement curse from pain to pleasure which shocked the male. Natsu felt weird, it was something he rarely felt nor thought about but the demon's fingers on his torso wasn't painful now.

"Never submit?" The female demon mocked, caressing his taut muscles that contrasted with her soft skin. She had small interest for males, let alone a human. Sayla was the only one who received her ministrations, but something else radiated from Natsu, one that made her feel he had the potential. Kyouka was going to see for herself what he's capable of. Said male had flush on his cheeks, his body getting hotter and uncomfortable.

He saw the demon in a new light; her voluptuous figure along with her generously-shaped breasts—how her skin felt soft against the roughness of her skin. Slowly, his mind becomes clouded with immoral thoughts. Natsu felt weak, in an absolute submission. An internal war between his rationality and libido which Kyouka kept stirring and enhancing.

"Stop it…" The dragon slayer rasped, feeling himself getting aroused with each second passing by. The female looked straight at him, her hand traveling downwards to the forming tent on his undies. She touched it lightly, but the amplified pleasure made Natsu moan and bite his lower lip at the unwanted response of himself. Kyouka looked down, eyes widening slightly at the sheer size of his member that was practically begging to be taken out of its tight constraints. She felt herself get excited at the sight, no man or demon she saw in her lifetime can compare to his, and the temperature he had was hotter than everyone else.

"You interest me." She held him tightly, making him curse.

"F-fuck off. Let me go!" He tugged on his cuffs. Moving his hips back in a futile attempt to get her hand away from his erection. Natsu fought his lustful desires, a flash of rationality against his thoughts of fucking a demon to submission, or just the idea of shoving his throbbing length in a demon's cunt to get revenge for his captured comrades.

That's it!

The dragon slayer thought quickly, if the female demon was enjoying him resisting, then he should not give her the reactions she was looking for. He bit his lower lip, the sharpness of his fangs on his soft lips making him moan from the back of his throat. Natsu kept his noises down which irritated Kyouka, so she switched the pleasure to pain again. Playing with the male made her sadistic tendencies to be fulfilled; her attention was indeed peaked from the resistance he was showing. He was the same from the Erza of the other cell.

Kyouka tightened her grip on his member, the pain almost making him faint. "W-Wait..."

"Oh?"

Natsu panted, looking at her through his bangs which were a bit down from his sweat. It was a great deal of both pain and pleasure, he admitted to himself but there was something he wanted to do to outwit the female demon in front of him. Sure, he was a total blockhead in other places but this, for him, was a battle.

"A one-sided battle isn't fun, so take these off..." He spoke cautiously, tugging on the magic-cancelling cuffs on his wrist and ankles. Kyouka looked at him, raising an eyebrow. Has he lost his mind? Feeling confident that she would still have the upper hand, the female smirked slightly.

"You're an enemy." She replied, grabbing Natsu's damp, pink locks from the back of his head roughly then tugged them down, exposing his throat that made him hiss in pain.

"A deal then?" He muttered, the enhanced ache that he felt was not really helping his consciousness. He had fought a lot of enemies before, but none with curse powers that stripped off his strength. If he had to, he would do any way to defeat this sly woman that's been torturing him.

Kyouka let out a small "hm" towards the dragon slayer, prompting him to elaborate on his offer. She was well aware that Mard Geer would find out that she's wasting time on these 'insects' though because she was on the high horse, she chose to listen to the man on her mercy. After all, she's going to ace whatever he had planned for the both of them.

"I'll play with you; whoever gets exhausted first is the loser, and will fight alongside the winner." Natsu said through gritted teeth, the feeling of the enhancement wearing off so he took a deep breath of relief. Throughout the experiences as a mage, and a young adult, he got quite the maturity and the adult stuff that came with it. He looked at Kyouka which had a smug smirk plastered on her face.

The female took her headpiece, showing her green hair and the fullness of her face as well as her coat. She was also confident in her body that made Natsu feel irked.

Let's see who'd have the last laugh.

As a man, the figure that was in front of him was undeniably sexy. At that moment, he needed to feel driven or he could lose. His training has proven to him multiple times that he had quite the stamina, this type of battle shouldn't worry him. Right?

Natsu stared at the curvaceous woman in front of him; she rivaled almost every beautiful female in other guilds and places he's ever ventured in. However, her affiliation being a demon might have some difference in the feeling, not that he had any intimate relationships with women before. Except bathing with Erza and seeing Lucy naked, that is.

"What can you do, human? Are you thinking that you can best a demon?" The big claws for hands she had disappeared, licking her lips as to entice the young man. "If you satisfy me, I'll let the girls go... but if not, you are all going to be my toys, forever." She chuckled, leaning in towards Natsu's sensitive ears to breathe warm air, biting his earlobe.

Natsu felt her curse again, this time bringing the amplified pleasure back. It meant she accepts the terms, so he thought of retaliating against her but her hand that was immediately on his cock just made his mouth open slightly, the rough friction of his underwear and how the demon massaged his growing length overwhelmed him instantaneously.

Had he complained about it, then she sure as hell would enhance his senses even more.

Kyouka began to lick the area on his neck, tasting the slight saltiness down towards his chest. Natsu's abdomen clenched at the sensation of her wet warmth, biting back a moan to erupt from his lips. His hands balled into fists, watching the demon make her way down on him.

His silence annoyed her a bit, if there wasn't a scream of pain or moan of pleasure, where's the fun? Kyouka tugged the garters of his boxers down, the sudden action making his erection spring up and touch the cold air of the prison cell.

For a human, he has an impressive size.

The dragon slayer's fully erect cock stood proudly, the veins on the thickness of his length throbbing of excitement; almost having a mind of its own. Natsu noticed the stillness of the demon, and took this chance to taunt her.

"What's wrong? Won't that fit?" He smirked slyly, thrusting his hips forward a little and making it touch the female's cheek. Kyouka gritted her teeth and held it firmly, but his girth didn't let her hand close fully around it.

"Still got the nerve, I see." She muttered, using her enhancement curse to amplify more of his pleasure senses. Natsu felt it, his cock reacting to the touch. He felt insanely hot, and in a good way. But too much of this could make him lose quickly, so he closed his eyes and focused on something else.

Shit, happy thoughts, happy thoughts!

As soon as his head projected his blue cat, he sighed in relief. Well, at least he could distract himself to not get too immersed in the pure pleasure she was giving him. The female demon took notice, beginning to stroke him. Natsu's precum made it easier for her to move her hands. She looked at the tip and was inwardly amazed by the amount of lubrication he was producing. It was even more than enough to enter an unsuspecting woman's pussy had he had the heart to become evil.

"A-ah, mm..ngh." The pink-haired boy breathed, the relief of getting the pleasured sounds out of his throat becoming more of a need than his wants of suppressing his moans just to not add more towards the woman's ego. Just how much more can she enhance how good this feels?!

Kyouka's ears perked up at the low, husky sound he produced. It was her turn to smirk, leaning in to flick her tongue over the frenulum and over the tip, which she knew were the sensitive parts. The length felt unusually warm; and the thought of having it inside her moistened the area between her legs. It was vulgar, she thought, having a lowly human defile her womanhood.

The demon caressed the dragon slayer's balls, seizing its weight. Natsu's face was flushed, his breaths getting deeper as he controlled his body's reactions against the assault. Kyouka's tongue and fingers were playful; getting spontaneous with each and every touch that he couldn't predict. Seconds felt like minutes as his arousal spiked up until he felt her lips suck on the tip of his cock.

"Fuck!" He cussed out loud, swallowing back the drool forming in his mouth. His hips thrust forward, wanting more of the warmth the demon provided. Said female hummed, pleased at the reaction. He's finally submitting; just how humans are when granted the pleasure and lust~

His knees felt weak, and for the first time was thankful for the cuffs over his head. It helped him stand upright although the gravity seeming to get stronger put a bit of pressure on his wrists. Natsu bit his lower lip and began moving his hips, in sync with how Kyouka was bobbing her head up and down on his throbbing meat. Her tongue played with each area as soon as she takes it in her mouth, giving it a suck whenever she moves away. He badly wanted to have full control, so that he could fuck her mouth as hard as he wanted.

Getting the hang of the enhancement curse, he took a forceful thrust that made the demon take every inch of him that reached the back of her throat. Startled, Kyouka gagged and immediately pulled back. Natsu's length were coated with her saliva, a thin string connecting the tip to her tongue.

"That's how you want to play, hm?" The female demon was now challenged for real, taking the fabric off her breasts which made it bounce due to its size. Natsu took notice, her alabaster skin and the pink nipples sitting the top of her huge tits making him want for more.

She pushed her breasts together, wrapping it on the male's length. The feeling of the softness that enveloped him were far different than her mouth. Kyouka spat in the middle, making her skin slippery before moving them up and down.

"Fuck my breasts if you want. Just submit to your desires..." She urged. Natsu swallowed a dry lump in his throat, and like an obedient slave, he did; slow and savoring the feeling of her tits. He was just about ready to cum at that point, and the demon knew. The cell was filled with noises coming from the titfuck, his small moans and pants.

"I-I.." He muttered, clenching his pelvic muscles in order to stave of his orgasm, although his cock was producing more precum and it was already red at the tip, twitching as it prepared to let go of his stored-up cum. "Damn it...!" Natsu hissed, Kyouka taking the tip in her mouth again, using her teeth to nibble on the sensitive glans. He couldn't take anymore, and with a loud groan he began to cum in her mouth which surprised her greatly, getting a mouthful of his essence before breaking contact. Natsu's cock shot more on her face, her eyes widening.

"T-This much from a single..." She gasped and looked at the male who was panting harshly, his body twitching from the pleasure of heaven... or hell.

Surprisingly for her, Natsu was still ready to go, judging from how his length still stood with a string of cum hanging from the tip. Kyouka now had someone to keep up with her, and she plans to test how long he would last. Tired of kneeling down, she stood up, her hand stroking the male's lively cock before whispering in his ear.

"Your turn to pleasure me." She whispered wantonly, cutting the chain between the cuffs. Natsu's knees gave in, kneeling down with his arms on his sides. Kyouka turned her curse off, and stripped off her black panties, which were damp because of her wetness. His sensitive nose picked up the delicious smell. Natsu was already taken in by pleasure, his eyes clouded by it. He looked up at her, getting a view of the area between her legs.

The female demon's slit was already moist, the juices produced by her cunt slowly flowing on the apex of her thighs. She grabbed Natsu's hair and took a step forward, getting him just right underneath her pussy. The closer she was, the stronger the smell. Without waiting for her to say anything, he took a whiff and nuzzled her wet slit. As a woman, she was sensitive to touch, especially when the tip of his nose went right to nudge her clit.

Kyouka felt the little things he did. The warm air meeting her sex making her quiver a little, due to the fact that she was shamelessly excited for what was about to unfold. Natsu went by instincts, as resisting wouldn't be much of a help anyway. He stuck his tongue out and gave her a long lick, flicking his tongue on her swollen nub that made her gasp. Her taste was surprisingly sweet, like a forbidden fruit. It was kind of addicting that he went for more, pressing his face against her moist heat to get more of her juices.

She was biting her lips, knees buckling as her hips followed the dragon slayer's tongue. Kyouka didn't expect for it to feel so good with a man licking her, and with a fire mage that had considerable amount of warmth than her lover's average body heat. They both heard how the male devoured her sex. Natsu smirked slightly, feeling the strength going back to him as he worked his tongue with vigor.

The woman moaned, albeit holding back. Natsu sucked on her clit and nibbled on it, his chin getting coated with her essence. Kyouka felt close, her eyes closing as her grip on his head tightened, desperately moving her cunt against his unpredictable mouth.

H-how could a human... do this to me?

Natsu looked up at her through his bangs, eyes narrowed with a glint of smugness in them. Kyouka found it as the last straw as getting her face watched turned her on further, gasping a quick declaration of release before tilting her head back, thighs convulsing as the breathless man underneath her took all her cum in his mouth. He gave her a few more licks to let her ride her orgasm, sighing as he pulled away. Feeling weak from the fresh release, she let go of his hair and looked down at him.

"You're formidable than I thought you'd be, human." Kyouka rasped, bringing her fingers down to her slit and accumulating her juices mixed with his saliva to taste it for herself. Natsu watched, his cock aching for more action. The demon knew this, so she spread her pink, glistening folds.

He almost growled at the sight, wanting to pounce and emerge victorious on their battle of stamina.

"What do you want?"

Natsu opened his mouth, hesitating for a moment before glaring up at her.

"You."

"Say it again."

Feeling bold, his free hands grabbed on to her hips, using his strength to bring her down the cement floor. Even without magic, his physical prowess was notable. Kyouka's eyes widened slightly, feeling herself ass touch the ground, being pulled close to her prisoner. Natsu went to grip her shoulders and pushed her down, successfully towering over the demon who was earlier having the upper ground against him.

"I need to fuck, and it's all your fault!" He spat, using his hand to touch the area between her legs. The female was stunned at what happened, in a blink of an eye. She thought she might have awoken a monster—an insatiable one at that. It was a thought that excited her even more, her body responding to his touches accordingly. Kyouka just replied him with an amused smirk, groping her own tits and playing with it to tease him.

"Is it? It was your idea." She spoke, pinching her own nipples that made her mewl and buck her hips towards his fingers. "Ah, yes... that feels good. mmh~"

Natsu bit his lower lip, aggravated by how she acted. He now wanted to break her, to own this entitled bitch and make her submit. He inserted two fingers inside her tight hole, rubbing his fingertips on her upper walls as his thumb went to work on her clit. The attack made her hips arch, letting out series of moans that pleased the male.

"You're used to this, aren't you?" He sneered, quickening the pace of his fingers. As the female's voice turned a high-pitched one to a whine, he knew he hit her sweet spot. Natsu focused on getting it, curling his fingers inside her. Kyouka's walls tightened around it, not wanting them to be pulled out as her juices run down his fingers, flowing down slowly to the floor.

The man leaned down to capture her nipple in his mouth, using his other hand to support himself while the demon mewled and thrashed underneath him. Kyouka felt so much, using her enhancement curse subconsciously on herself to make her go over the edge and cum. Natsu played with the hardened nub in his mouth, letting his fangs graze over the sensitive bundle of nerves before sucking hard, his finger-fucking making squelching sounds all over the room.

"S-Stop, nngh... lowly h-human..!" Her words were the opposite of her actions, her hips moving in time with his fingers as she grabbed Natsu's head to keep his mouth in place. He chuckled and hummed as he used his mouth on her tits, feeling the pride as he got the upper hand. Kyouka's walls clenched, and more juices came out which was noticed by the dragon slayer due to the additional warmth.

Not wasting a single minute nor letting her ride it for the second time, Natsu pulled his fingers out and quickly, without warning, shoved his entire length to the hilt that made the female demon cry out. He groaned, feeling the tightness grip him like a velvety vice. Her back arched, holding unto his arms and sinking her nails into his skin, her partner grunting at the sharp pain.

"You're fucking tight, huh. I thought you'd be loose because you look like you have a lot of men to fuck." He smirked, grinding his hips towards her. Kyouka bit her lower lip, feeling him ground against her swollen clit as well.

"I... I don't let anyone fuck me so easily." She whimpered, face flushing. She was ashamed of what she become—a mere helpless woman under his desires.

"Then, I'm going to make sure you won't want anybody else to fuck you." Natsu replied, pulling out slowly before slamming back in.

"Ah..~!" I can't believe this! Kyouka shuddered, giving his vein-covered cock some more lubrication. The warmth pooled on the cold cement, and it certainly made easier for him to fuck her in and out without much of a resistance, except for her walls that sucked him in every time he pulled away. Natsu made use of his mouth to lick her neck, sending jolts of electricity through her spine.

"You like that?" He whispered, controlling his breaths as he sucked her soft, creamy skin. He left marks where his mouth lingered, and trailed the tip of his tongue up her ear which he learned from her earlier. "It's fun to get the end of the stick, right~?" Natsu teased, leaning forward to put more force to his hips, fucking the demon's swollen cunt over and over. The meaty slaps and their moans were the only sound occupying the small room, and Kyouka was almost nearing her release once again.

"I'm. I'm. oh~ fuck-r-right there...!" She whined loudly, his cock hitting her sweet spot over and over. Her pussy squelching let him know she was uncontrollable already, convulsing around his length. Natsu felt the walls forcefully pushing him out as she was about to squirt, but he didn't relent. He used his thumb to rub her clit in circular motion, Kyouka's cunt spraying cum all over his lower body.

"Stop! I just, a... ah! Ah...ngh!"

"Endure it, you fucking demon, can't take a human's cock?" He growled, his eyes narrowed, clouded by a thick amount of lust. Kyouka thrashed, her hands all over the dragon slayer as her nails left a trail of scratch on his muscular back. Perhaps due to adrenaline, his body perceived the pain as pleasure which fueled him to pound her red pussy until he was satisfied. Natsu grunted, his cock twitching inside her; a sign that he was about to cum as well.

In order to last a bit more, he pulled out from her pussy with a wet pop, his length red and veins throbbing as a result of edging himself. Natsu forcefully turned her on her stomach, grabbing her hips and pulling her weak body against him. He was out of control, the desire he felt to dominate the female demon surfacing. Kyouka was drooling, probably the most pleasured moment she was in was her moment with her prisoner. Her eyes almost rolled her eyes on the back of her head as soon as he entered her heat again, grabbing her ass as he pounded away.

They were both covered with a thin sheen of sweat, even the male felt the hotness of the event that was unfolding. Natsu grabbed a fistful of her hair and yanked her back, fucking her with both desire and anger.

The female was a mess; her torso decorated with marks from her mouth, getting her pussy abused by the one she was meant to reduce to an obedient and submissive pet. The Kyouka full of herself was turned into his fuck toy, and it surprisingly excited her.

"Please..." She gasped, saying the word for the first time as her breasts swayed back and forth even for its weight. "Please... please." Kyouka whispered, like a mantra, her pride not letting her to say what she really wanted.

Natsu pulled her upper body up, both of them in kneeling position. It let him move his hand down to her protruding clit, supporting her body with his other arm and shared with her his abnormal body heat.

"Please what? Say it." He bit her shoulder, her ass rippling from the force of his thrusts. Natsu was panting, letting out small moans here and there. Kyouka found it arousing overtime, his breath on her ear as he shoved his entire length in her. His cock protruded from her stomach because of the angle, and her mouth quivered from what she wanted to say.

"I-Inside... me." She bit her lower lip, producing a loud whimper as her legs trembled, almost collapsing down had the male wasn't holding her.

"You lose." Natsu smirked, nibbling on her ear as he felt her touch his arms, his eyes widening as the enhancement curse became effective on him again. He also noticed how she quivered as she was getting fucked, and he knew she had applied it to herself as well for the last, mind-blowing orgasm he's ever going to have.

"Shit." He inhaled sharply, nuzzling her neck before biting it harshly as his balls tightened, and he became more desperate for release, his pleasure enhanced to a considerable amount of level. "You better take it all... mmngh!" Natsu groaned, feeling himself dump thick ropes of his white essence inside the demon's contracting walls, straight up in her womb. This made the female cum as well, her body twitching against his in utter bliss and pleasurable defeat.

Both parties were panting harshly, the enhancement curse wearing away yet again. Natsu let go of the female demon; because she was exhausted, she could support herself and dropped face first on the floor, her ass high up in the air and her swollen cunt oozing their mixed juices down to her thighs and the floor. The male sat on his heels, his cock laying limply on his thigh as the orgasm took so much in him. Kyouka's stomach was a bit inflated, making him grin in triumph.

"You fucking demons should know who you're fighting with..." He mumbled taking a deep breath before chuckling to himself. "I'm a Fairy Tail member, gonna do whatever it takes to win!"

OMAKE:

Natsu's POV

I don't know how much time had passed, nor was I aware of what happened next after my encounter with that female demon. I laid on the cold, hard floor, my consciousness being brought forward by familiar voices.

"..at..u!"

"...su!"

"Natsu!" Lisanna?

"I didn't know he's a pervert..." E-Erza?

Damn it! I twitched, slowly opening my eyes and pretending not to feel well. The first thing I noticed was white hair, looking at me with her face flushed as she laid down a pair of outfit for me to wear. How thoughtful... I smiled sheepishly, avoiding eye contact with the other female in the room which I felt had the aura of slicing me into pieces as soon as our eyes meet. Looking down, I sat up and began to wear it.

Erza was blushing too, in my peripheral vision; perhaps she knew what had happened, because she was just right next door from me. Fuck, she heard everything?!

I felt a hand grab the collar of my new black, gold-trimmed shirt with a skull behind it, swallowing nervously.

"D-Did you... did you..." She whispered, and it hit me what she wanted to know.

"A-Aye..." I replied, feeling my face heat up. The magic cuffs were off my limbs now which made me internally sigh in relief.

Suddenly being let go, Lisanna and I watched her cover her face in the corner, mumbling incoherently.

"Hey, Natsu. The demon you... defeated... we cuffed her already."

"Oh, thanks! How did you get here?" I inquired, back to my normal self.

"This!" Lisanna showed me a sword. "It heats up, so it was helpful for me to cut the metals back in the jail room."

Ah, I hope none of them tell others about what I did to that demon.

xOxOx

And just like that, they resumed the fight with Tartaros; although for one specific female demon, she wanted to capture one of the fairies.

Finally, an update after years of hiatus. That concludes our Natsu x Kyouka pairing. The next one might be Sayla, and the plot may connect to this, but I also have something else in mind.

The poll was also reopened, it might come first before Natsu x Sayla but that's all up to me. I guess. How has everyone been? Natsu and the girls can sound OOC, and some plots would be AU. That's just my friendly notice.

I also plan on doing Natsu x Crossover pairings. Let's see where I get more motivation from. Also, suggestions are welcome!

Read and Review guys.

'Til next time!

- NightCruiser