Inucest Kinktober:

The 31 day Kink challenge!... err.. 25 day because I joined in late

A/N: So just my luck I stumble across the Kinktober 2018 prompt list when there's incest on the menu, so of course, I had to do an inucest Kinktober challenge. I'm going to try to do one a day but knowing my usual update rate… hehe we'll see.

Each fic is probably going to be set in a different universe. I'll try to make it clear in the story, but if there's any confusion, you can always ask me.

If you guys enjoy this series, do consider leaving feedback and comments because otherwise, it's going to be hard to stay motivated enough to do one a day. Just to make it harder on myself, I'm going to go for more than one prompt in a single fic every day. So here it goes.

Chapter 1 – Be Good For You

(For October 7 prompts: praise kink, aphrodisiacs, incest)

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Warnings: Inucest, half-sibling incest, dirty talk, cussing, yaoi, sort of pwp

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"Well done, Inuyasha," came his brother's quiet, deep voice, and Inuyasha blushed right up to the tip of his puppy ears. Sweat dripped onto the mat under his knee where he was crouched on the dojo floor.

He was breathing like he'd just run straight across Japan, and he'd incurred enough bumps and bruises to make every movement a freaking pain, but it was all totally worth it to hear those incredibly rare words of praise from his elder half-brother, and secret crush.

"Thank you, onii-sama," Inuyasha squeaked, refusing to look up.

The demon lord ignored his odd behaviour as usual. It hadn't been long since his father had brought home the hanyou and introduced him as his half-brother. There had been a period of stormy denial and anger, but by now, he'd sort of got used to the goofy boy.

Inuyasha, on the other hand, had more than gotten used to his newly discovered elder brother. The moment he'd laid eyes on him, the only thoughts in his head were completely and absolutely filthy. If the youkai lord ever found out, surely he would never speak to him again, maybe not even want to live in the same house with him.

So Inuyasha kept a firm lid on his pining, and only indulged in his dirty, shameful secret in the privacy of his own head. That was the only way he would get to be near him, after all.

But every now and then, when he heard words of praise from that normally cold mouth, he couldn't help but get… a little affected.

"This tea is well made," the youkai prince of the West commented, holding the cup to his nose and taking in the subtle, perfect aroma. It wasn't everyone who could make tea he approved of, after all. Many a chefs had tried and failed.

Lord Sesshoumaru looked curiously at his younger brother who had once again turned bright red. He seemed to do that a lot. Maybe it was a hanyou thing?

"Where did you learn to make tea like that?" he asked.

Inuyasha mumbled something that was complete and utter gibberish. He meant to say words, and form a sentence, but what came out was a garbled mess of nothing that he could in no way explain away. So he didn't even try. His brother anyway thought he was a complete fucking weirdo, after all.

The truth was, he'd been secretly stalking his brother's tea preferences for a while now. And practicing making just the kind of tea the youkai lord liked. The feather in his cap today was a secret ingredient he'd got from his mother's, a wonderful-smelling powder that he knew would go so well with the rest of the ingredients of the tea.

He knew he hadn't been wrong when he'd finished making the tea. In fact, it had turned out so good, that Inuyasha indulged in a cup himself, though he was usually strictly a coffee man.

"That's a good look on you," Sesshoumaru commented, standing in the doorway of his brother's room.

Inuyasha had been trying on the outfits he'd just bought. He tried them on before buying them, but things somehow always ended up looking different back home, and the return window would close if he waited too long to try them.

He'd been a little iffy about this current outfit; it was a bit outside of his comfort zone, and normally he would have taken a few more hours to make a decision on whether the outfit was worthy of being shown to his brother. But it seemed he wasn't to get the choice today.

On an unrelated note, Inuyasha was considering never taking the outfit off again.

That night, at dinner, Sesshoumaru was mildly surprised to find Inuyasha wearing the same outfit he'd seen him trying on earlier. Dinner at the house wasn't always a very formal affair, but that oufit was hardly appropriate for dinner. After all, any outfit that required a choker as an accessory to complete it was unlikely to be dinner appropriate for a young boy. But though everyone gave him an odd look, nobody said anything. It was just the family, after all.

By the time dinner was done, and they're retired to their own chambers, Sesshoumaru noticed he was feeling a little… odd.

He decided to go check on his father, ask him if he was feeling something as well. Maybe it was something they ate.

Inu no Taisho was, apparently, feeling fine. As was his mother, and Inuyasha's mother. Mystified, Sesshoumaru returned to his chambers.

He barely stumbled inside, when his eyes began to pulse red. Only with supreme effort, he managed to reign in his youkai that was roaring to be set free, and kept himself from destroying his entire room and the roof of the house by transforming indoors.

He couldn't understand it… what was happening? It couldn't be something he ate… they'd all eaten the same thing…

Except…

Inuyasha was lying on his bed, one hand down his pants, feverishly stroking himself, when he vaguely heard the knocking on his door.

Nothing in the world would have tempted him to stop what he was doing to get up and open the door, so he easily ignored it.

That was when the door was ripped right off its hinges and slammed against the inside wall.

Inuyasha turned his head and froze in shock, staring wide-eyed at the red-eyed spectre at his door.

"What was in the fucking tea?" Sesshoumaru hissed.

It took a little while for Inuyasha's arousal-addled brain to process what had happened, but he finally managed to do it; somehow, he'd added an aphrodisiac to the tea, that had a very delayed, very slow, but apparently really fucking strong reaction, and now, they were both suffering the consequences of it.

"I'm so sorry, Onii-sama," Inuyasha babbled, puppy ears lying flat on his head. "I-I didn't mean to, really."

Sesshoumaru growled, and ran a hand across his face, making a valiant effort not to slash at the idiot in front of him. "Dammit, Inuyasha, you cannot imagine what my youkai wants to do right now… do to you…"

Puppy ears drooped even lower, before perking up suddenly. "I'm sorry – wait, to me?" he asked carefully.

Sesshoumaru gave him an odd look, and then looked away. "Yes, to you, you stupid hanyou."

Inuyasha ignored the insult in favour of a much more important question. "Wh-what does it want to do to me?" he asked tentatively.

Golden eyes pulsed red, and there was a sudden thrum of power from Sesshoumaru that made Inuyasha automatically scoot back on the bed where he was sitting. But the youkai lord controlled it, getting up from the bed, walking over to the window.

"…it's not appropriate," he told him. "We're brothers."

Well, that sounded promising.

"I really want to know, brother," Inuyasha said, trying his best to keep the eagerness out of his voice. "What is it?"

Sesshoumaru thought about not telling him. That was probably the wiser course of action, after all. But it was Inuyasha's fault he was in this mess, so he decided to say it, just out spite, to unsettle the hanyou.

"It wants to rip those clothes off your body and take you until you fucking pass out," the demon Lord growled, meeting his eyes.

Inuyasha swallowed nervously, unable to look away from those normally cold eyes now suddenly filled with passion. Sesshoumaru was the one who broke eye contact and turned away from him to stare out the window again. Inuyasha's brain helpfully decided to throw up images of just what it would be like to be pinned under that gorgeous beast, being used to relieve its basest urges.

"…I could go for that, sure," he managed out hoarsely.

He saw Sesshoumaru stiffen, and then the demon Lord whirled around to face him. "What?" he demanded.

Inuyasha was looking at him strangely. "We could… you know… I would – I would be ok with that… you know, if you want to… if you need to…."

"You're my brother," the demon Lord said hoarsely, eyes unwillingly roving over the lithe, gorgeous body.

"Half-brother," Inuyasha amended.

The demon Lord blinked at him for a moment.

Good enough, his youkai told him, but he ignored it in favour of staring at his sibling.

"I wouldn't want to force you to… just because-"

Inuyasha was shaking his head vehemently even before he finished the sentence. "No, no I've been wanting to… all this time… I want you…"

That was the last straw, and Inuyasha gasped as Sesshoumaru was at his side of the bed in an instant.

"What do you mean all this time?" Sesshoumaru demanded, teeth gritted with the effort of keeping his youkai, which was now all the more frenzied to get to the surface, under control.

Inuyasha squeaked, scooting away from him and bunching up the blankets in the process. "I-I no-nothing…"

Clawed hands gripped the front of his haori and hauled him closer to the incensed demon Lord.

"Explain yourself, hanyou, or so help me god…"

Inuyasha swallowed nervously, glancing down at the hand. He hadn't meant to say it… it just slipped out… but it didn't seem like the youkai was going to let it go. He could feel the heat radiating from the other demon's body; his youkai coming to the surface seemed to be causing his body temperature to rise… and he could smell is intoxicating musky scent… Oh what the hell. It's not like he could make this situation much worse…

"I- I know you'll probably hate me for this," he began hesitantly, looking into his elder brother's eyes. "B-but I've wanted you since the moment I saw you," Inuyasha said in a small voice. "I- I know it's wrong and you're my brother… but -but I think about you… when I lie in bed at night… just now when you walked in on me… it's you I was thinking about…"

Inuyasha never got to finish the sentence because he was pushed down on the bed at that moment, and petal soft lips landed on his and proceeded to devour his mouth.

Inuyasha kissed him back just as enthusiastically, pulling at the demon Lord's clothing.

It wasn't long before both were nude, Inuyasha dressed only in the silk choker he'd been wearing at dinner. A clawed thumb rubbed across it and Sesshoumaru looked down at him hazily.

"A collar for the puppy…" Sesshoumaru murmured, and Inuyasha blushed bright red.

"Shut up," he mumbled.

His other hand was trailing down his body, and Inuyasha writhed under him impatiently. "C-come on, take me already," he said.

"Are you sure?" Sesshoumaru asked him quietly.

Inuyasha felt something disgustingly warm and gooey in his chest at the elder's concern.

But damned if he was going to let it show. "Yes yes now fucking do it!"

That was all the urging the other man needed, and he lost no time in folding Inuyasha's legs up unto his chest.

"Do you have any moisturizer or anything?" the demon Lord asked him.

Inuyasha turned bright red. "Lube in the nightstand," he squeaked.

Sesshoumaru raised and eyebrow and smirked at him, glancing at the drawer he indicated.

"Have… guests over frequently, do you?" the youkai lord ask.

That was when Inuyasha remembered something. "No wait a minute I'll get it-"

But it was too late. He was held down with on hand as the demon Lord reached out to open the drawer with the other.

Inuyasha groaned and covered his face with embarrassment, even as he was folded in half and his bottom was exposed to the night and to his brother.

When he cracked his eyes open, Sesshoumaru was holding one of the many dildos in his nightstand, looking thoroughly amused. It wasn't for guests, after all, it seemed.

"I… that's… shut up!" Inuyasha groused.

The demon lord put the thing back in its place instead taking a generous helping from the half-empty bottle of lube.

"At least I won't have to spend much time preparing you," Sesshoumaru said, and his deep, pleased voice sent shivers down the hanyou's spine.

True to his word, it wasn't long before he was pushing himself into Inuyasha.

Inuyasha gasped, staring at the look of pleasure on Sesshoumaru's face as he finally sank into a warm, tight heat as he'd been wanting to since the effects of the damned tea had made themselves felt.

"Oh fuck," Inuyasha cursed, as that large cock made its way inside of him. All of his toys hadn't really prepared him for the real thing. But right now, with the effects of that damned tea, all it felt was freaking amazing.

There was a soft groan above him, and then Sesshoumaru was withdrawing from his body, and then thrusting back in hard.

Inuyasha gasped, and hazy red eyes stared down at him.

"Did I hurt you?" Sesshoumaru asked, voice hoarser than usual.

"N-no not at all," Inuyasha assured him, but he wouldn't look at him.

Sesshoumaru frowned, and with a superhuman effort, stilled inside the hanyou. "Inuyasha, are you ok?" he asked, concerned.

Inuyasha turned even redder. "Yes I'm fine."

"Inuyasha, look at me," the older brother said, and Inuyasha unwillingly forced himself to meet his eyes for a second before squeezing them shut.

"I'm going to stop if you don't tell me what's going on," Sesshoumaru warned him.

Inuyasha's eyes flew open in surprise. What the hell was the youkai made of that he could stop in the middle of fucking like that with the effects of the aphrodisiac still working on the both of them?

"No don't stop!" Inuyasha said hoarsely. "I- I'm … I'm just tryin' to… I'm too close," he mumbled embarrassedly.

The look of concern on Sesshoumaru's face morphed into a smirk, and to Inuyasha's relief, he began thrusting into him again.

Then to his chagrain, Sesshoumaru's large, calloused hand came to wrap around his cock and Inuyasha's eyes flew open. "Hmm, let go if you have to," Sesshoumaru whispered.

Inuyasha's eyes flew open in surprise. "Wh-what?" he asked, voice strained because of the effort it was taking not to cum all over his brother's hand right there.

"Cum for me, little brother," Sesshoumaru whispered.

Inuyasha came with an embarrassed shout. He was about to open his mouth to apologize, but the demon Lord didn't seem to be stopping for him, thrusting into him even as he shook with little tremors from his orgasm.

"So fucking responsive for me," Sesshoumaru praised softly.

A surprising wave of pleasure crashed over Inuyasha at the words, and he stared up at him glassy eyed.

"Y-you like it?" he asked in disbelief. Everything he knew about this had told him that cumming too soon was never considered a good thing.

"I do," Sesshoumaru told him, voice deep and heavy.

To his shock, Inuyasha felt himself harden once again. He thrust up against the demon Lord's body, trying to get some friction, now that that very talented hand had withdrawn.

"H-harder," Inuyasha moaned.

The demon Lord obliged, beginning to thrust hard and fast into him.

"Tell me if it gets too much," Sesshoumaru told him, even as the hard shaft pistoned into him.

There went that warm and gooey feeling again.

Inuyasha just nodded, ignoring the disturbing sensation, focusing on the wonderful feeling in his ass.

Sesshoumaru's hands were roving over his body now, and Inuyasha's found himself tingling wherever they touched. He brought the demon Lord's head down to kiss him deeply.

After a while, he felt his release building again. He was determined to hold out for his brother this time.

But the youkai, feeling the younger's stirring length, reached down and once again began to pump him in time with his thrusts, and Inuyasha found himself once again cumming all over his hand.

The demon Lord stilled inside him for a moment this time, because Inuyasha was breathing really hard, and his body was covered in sweat from his intense release.

"I-I'm sorry," Inuyasha panted.

Sesshoumaru leaned down and kissed him hard. "Don't be," he told him, and began to move inside of him once again.

Inuyasha now just decided to enjoy the feeling of being stretched and full, and the elder's wonderful scent all around him. There was no way he was going to get hard a third time in one night, after all.

A little while later, he was proved wrong. A gasp escaped him as his older brother brushed against something inside of him that made him see stars.

"W-what was that," Inuyasha demanded. "D-do that again!"

Sesshoumaru smirked at him. "That's your sweet spot, little brother. Didn't you know?"

Inuyasha shook his head mutely.

Sesshoumaru hummed quietly in response and proceeded to brush against that spot with every movement now.

By the time he was close, Inuyasha was ready to scream. Having cum twice already today, he didn't think he had anything left to give, yet his orgasm was building, ready to crash over him soon. He was almost sobbing with the feeling.

"So good, Inuyasha," Sesshoumaru murmured to him, entwining his fingers with Inuyasha's. "Cum for me once more, cum."

The hanyou shouted his release then, and blacked out.

When he came to, the sky was lightening outside, and Sesshoumaru was lying next to him.

Inuyasha stared at him in surprise, having expected him to leave once his urges had been sated and the aphrodisiac's effects countered.

Inuyasha sat up in bed, glancing at the clock on the wall. It was close to 4 am. He winced at the dull pain in his bottom.

"How're you feeling?" came Sesshoumaru's sleep-heavy voice next to him.

Inuyasha glanced down at his drowsy elder brother and smiled. "I'm feeling rested and full of energy, actually," he said. "Dunno why. I'm usually exhausted after… you know."

His cheeks turned pink and Sesshoumaru smiled. "After you've played with your toys, you mean?" he teased.

The pink in his cheeks turned to red and Inuyasha pushed at him half-heartedly with a pillow.

Sesshoumaru also half-sat up in bed, and pulled his face close to give him a soft kiss.

"That was your first time, wasn't it?" he asked softly.

Inuyasha blushed and looked away, nodding.

"Was I… was it…?" Inuyasha trailed off, too embarrassed to finish the sentence.

"You were wonderful," the youkai lord told him.

Puppy ears flickered happily and Inuyasha threw off the blanket and stood up.

"I'm going to make some coffee. You want some coffee?"

Sesshoumaru propped his head up on his hand and leered at the hanyou's gorgeous nude body. "Sure," he agreed absently, not really listening.

Inuyasha felt his lecherous stare and blushed, putting on his clothes as quickly as he could.

When he reached the kitchen, he found Izayoi moving stuff around in a cabinet. There was a cup of hot milk on the counter next to her.

"Hey Inuyasha," she said, still rummaging through the cabinet. "I came down to have some milk, and I noticed my packet of tea is gone. Do you have any idea what happened to it?" Inuyasha turned bright red, and fled out of the room.

Sesshoumaru raised an eyebrow as Inuyasha skidded into his room and shut the door behind him.

"There's no coffee," Inuyasha announced.

A/N: So what'd you think? ^.^

Tomorrow's prompt is "Blood/Gore | Prostitution/Sex Work | Fisting | Hate-fucking/Angry Sex"

What do you think? Should I do the Kinktober series?