Author's Notes: Oh my GOD three fragging stories with the same fragging premise of Aku feeling through others. Aaaaa I CANT HELP MYSELF, MY BRAIN WON'T STFU IM A GREMLIINNNN. Hopefully this is the last one my brain plagues me with.

This occurs during 'The Aku Infection'. Some modifications: It would occur over a longer period of time i.e. Jack isn't immediately plagued with illness; he becomes worse over time and isn't urgently seeking the monks.

Summary: Jack can do things to Aku with more than just his magic sword.

.o

His thumb grazed against the raised edges of where the black ended and his skin began. A few days ago, these black splotches had appeared on his skin and began to spread. There weren't many who were specialized in medicine in the area that he currently traversed, the hills of a snowy valley. The one he found had never seen something like this before, but they said if it didn't hurt, perhaps it was benign.

Jack chalked it up to it perhaps being something he'd eaten around that time. There wasn't much food from his era that he recognized in this world's future, so he was forced to try out new foods, regardless of how weird it looked to him. Some foods had transformed his body into another creature for a few hours; another caused him to speak another language until he found a shaman to reverse the effects.

The black consumed most of his hand and extended up to his shoulder. It didn't hurt; in fact, he couldn't feel much anything where it was. He had tried pinching himself and didn't feel anything. It was a bit scary for him, but he tried to look at the situation positively. At least he wouldn't be held down by pain if he were to get into a fight with Aku again. He also didn't feel cold on his arm, which helped when he had to interact with objects in the frost-ridden air.]

His stomach rumbled. The freezing temperatures allowed fish to remain fresh for longer. For being in such a cold place, there were hundreds of people filling this small marketplace that he passed through. He eyed a fat salmon, portioning in his head how much he could ration over the next day. People he had helped in the past gracefully gave him the currency of this world (even though he protested against it). He paid the merchant his dues and left the booth with a sack full of tasty fish.

As he neared the other end of the market, the crowd became more condensed. He brushed past heavily-dressed and furred creatures as well as robots who also wore clothes, for even their circuitry was not safe from the temperatures. He could hear the giggling of women who were shopping for new clothes. He couldn't prevent contact as he slid past them. He could smell the perfume; it drowned his nostrils in pleasant scents that brought back memories of a calm night in a rainforest, of the smell of lovegrass during his time in the Macina of central Mali in Africa.

His eyes took glances, noticing that some of these people seemed to come from the earth, ice-like bodies that were transparent and gleamed like a diamond. Gentle curves helped denote a feminine frame, gentle faces, with gentle laughs, with a beauty that made Jack long for comfort. The women were scantily clad; perhaps they were comfortable with the temperatures. Jack's gaze unintentionally wandered and captured sights that gave him pause. Within him stirred a hunger different from that of the stomach, that he hadn't felt since his crossing with Ikra, the she-beast form of Aku.

He hugged the bag closer to his body as he finally squeezed past. He kept his mind focused on the pangs in his stomach. He would find a place with which to make a refuge for the night.

But his mind wouldn't stop chasing the lurid glimpses he tried to push out of his memory.

Growing up, Jack had his fair share of encounters with humans of the opposite sex. Being a growing teen, he would have times where his lower self made itself known, whether in public (to his embarrassment and attempts to hide) or in the moments of privacy when he wasn't learning something new. His time with the Shaolin monks not only taught him waijia as a predominant method of fighting, but also neigong as a form of meditation through martial arts. Buddhism was encouraged in both his lands and the Shaolin monk's land, so he did pick up at least some aspects there during his time. He learned how to keep temptations from plaguing his mind, as earthly desires were not needs, but wants.

For some reason, he couldn't get rid of it this time. Sometimes he woke up with morning wood, and he didn't find much issue in ridding himself of the issue with his hand. That didn't really require thoughts of anyone to do so. But he was currently riddled with thoughts of the flesh. Reflecting as he trudged through the snow, he found that he was more impulsive as of late.

His loins throbbed with need, and it wasn't pleasant to have it roughed against his fundoshi with every step. His mind continued to work overtime, thinking about his hands on body parts and his stomach dropped, making him stumble in his step. He'd planned on travelling further, but he felt hot despite the cold biting away at his skin, and he had to stop. On the way, he found some blankets that had been covered in a layer of snow, perhaps abandoned. He used this to wrap around himself and huddle into a grotto, having nearly missed its entrance due to the tall layer of snow.

He stared at his right hand, having not realized this entire time that there was another bag clenched in his grip. He hadn't bought two bags of fish. He grit his teeth. This was the second time that he had, for some reason, stolen something that he'd had no intention of doing so. He couldn't return to the market now. Too far away. And he needed to get rid of this issue between his legs.

.o

Aku groaned as he tossed uselessly on his bed, the sounds of the samurai's adventure playing from the teleportal in the background. He didn't understand how he could've gotten sick; he wasn't made of anything on this world that could be infected! Perhaps it was something he'd caught off-planet when he was plundering another planet of its resources.

He had little energy to do more than wheeze, cough, and watch his television. When the coughing fit stopped and the aches were more manageable, he turned back towards the teleportal. He'd started watching soon after he'd returned from his last encounter with Jack. Jack had had every opportunity to attack him, yet he spared Aku. Aku sneered in anger, yet in the back of his mind, was grateful that the fool was so foolish as to have a sense of honour towards his greatest foe and ruler. One of these days, that nobility would be the death of the samurai.

The samurai seemed to have been infected by Aku, that much the demon could surmise from the black flecks on the samurai's hand. Most likely Aku was contagious. He wished he could chuckle, but even a smile made it feel like he was splintering.

The samurai was at a market, buying things to prolong his miserable existence on this planet. Aku watched with interest as the samurai seemingly, unawares to his own actions, swiped a bag of fish that was sitting underneath the table. Was his essence causing the samurai to steal?! It only made sense to Aku. That was still a part of him. The samurai may not have been able to feel anything when he pinched at that black skin, but Aku certainly did, even though the feeling was nothing more than a breeze against the skin, since the spirit couldn't really feel pain.

Aku closed his eyes. Through the nausea, he felt hungry. No, not hungry, for his stomach was not in the mood for food—well, technically it was, because the samurai was hungry. But he knew of the symptoms of human arousal. Before he was Aku, he was the great black mass. He was trapped in that form by the gods who had been hunting him for sport. As that great black mass, he engulfed millions of creatures, of which some of them had been in the middle of fornicating. He could taste those pheromones, understand and even witness some of those sensations as he ate their bodies, their minds, and they became part of him.

Now, he was feeling that arousal. What an inopportune time, for his body wilted with pain and lethargy. He opened his eyes. That fool, who portrayed himself as a being of purity, riddled with the petty lusts, the most basic desires of a living creature. Pathetic. Horny little fool.

What irritated Aku was that he had to experience everything that the samurai experienced due to that essence. He felt hungry when the samurai did. He felt calm when the samurai did. He felt anger when the samurai did. He felt lustful when the samurai did. And it seemed that his essence made it harder for the man to keep control of his mental state.

Aku closed his eyes again, passing out for a brief stint. When he opened his eyes, he was still plagued with that stupid fool's arousal. He saw that the samurai had stuck himself in a hole with blankets wrapped around him (did he steal those, too…?). The little ape was fisting himself, much to the chagrin of the demon wizard.

He hated that it felt good.

Yes, it felt good when people had sex. He'd experienced it as the great black mass. But it wasn't something he desired. He was AKU. There was no greater pleasure than him being master to this world and watching the inhabitants of it bending down to him. Psychological pleasure far surpassed any carnal desire.

But. Physical pleasure was a rarity for the demon. Since he was exposed so little to it, there was no way to learn to keep it from overtaking him, unlike pain (which was more like itches to him), which he learned to ignore.

He warred between the sensations of physical illness and physical pleasure, making him feel dizzy. If he had the strength, he would've commanded the essence to consume Jack then and there. But for now, he would have to be content to just watch.

Watch as the samurai pulled his member close to his belly, balancing it in his hand, muttering to himself as he moved into his hand. Aku tried closing his eyes again to hopefully be whisked off into unconsciousness again, but he couldn't not hear the quiet moans from the samurai, sounds the demon had never heard from him before. Aku pretended they were moans of pain, which he was okay with, because it made the lances of pleasure through his stomach more bearable. More okay.

More panting, somehow picked up over the howling of the wind. The man's throat closing in gulps; Aku gasped. His body writhed in not-pain, unwelcome pleasure a crescendo that made him utter an admittedly un-demon-like noise, as Jack came into his hand.

He'd never felt the process from start to finish before. Aku decided he didn't like it. He didn't like the loss of control. Admittedly, he kind of accepted the pleasure of an orgasm; it took away the feelings of sickness for a few minutes. He basked and listened to the samurai catching his breath. But he hated that it came from the samurai.

Once the headache came back, Aku thankfully drifted off into unconsciousness. Not enough energy left over from Jack's hand-to-gland combat.

.o

Aku rested for about a week straight, not awakening to calls from his robotic servant notifying him of people requesting his presence. The blight that he'd been experiencing seemed to have resolved itself, for he no longer suffered from pain.

"Hmmmmm, I feel better!" Aku proclaimed, stretching his arms above his head and then stretching himself to his usual height. He opened another teleportal to see what the samurai was up to. He blinked when he saw that the black had extended over the samurai's chest and onto his face, covering the jawline. One of his hands were now completely cloaked in his essence, ending in sharp tips. The samurai had to know that this affliction was from Aku by now. The samurai didn't look particularly bothered by it, for some reason, which bothered Aku.

Aku prepared to open a portal to travel to the fool and give him a reason to fear, but just then, a robot servant barreled into his tower, looking nervous (as nervous as a robot could look, since they can't really emote).

"Lord Aku! There is an entire city that has begun attacking your robot development research facilities!"

Aku turned from the wall toward the ledge that extended into his lair. "What? And no one knew this would be happening?"

"Yes, my lord. There were rumours of a coup against you a few days ago, but you weren't available to deliver the news to."

"A coup against Aku?" The demon straightened his back. "This cannot stand." He had a frown on his face; yes, he was displeased that yet another populace decided to defy him—he expected it after thousands of years of ruling here. However, he was also pleased. He loved the destruction that came with setting people back on the right path: the path to obeying and worshiping Aku. Plus, he felt positively refreshed after his week-long slumber.

He ripped open a portal to the location of the uprising, and prepared to deliver some retribution for their crimes against him.

.o

A day after he massacred fourteen thousand civilians (more or less. He sort of lost count), he felt something peculiar. An itch. Not the itch that came with pain. An itch that made his eyes narrow and his teeth clench. That damned samurai. That accursed samurai.

Oh, how he hungered.

Aku snarled as he ripped open a teleportal to see just what the samurai was up to now.

Nothing, it seemed. The samurai was going about his daily life like nothing was wrong. He had to be lusting, though. Why else would Aku be lusting as well?

Aku raked his claws against the wall of his home, hissing in frustration as his body throbbed despite not having the organs necessary to feel these things naturally.

His lips pulled back with a scowl, wondering if he would have to spell it out to the samurai to get off or knock it off. Better yet, he might as well end the samurai now so he could solve this issue already.

He apparated his way to Jack.

.o

Jack was once again assaulted with desire. He'd passed a gaggle of girls on his path to the monkhood establishment. This creature possessing him was clearly Aku, and thus he wanted to hasten his way to the monks. He didn't want to risk being fused with it for much longer, for the consequences of anything involving Aku might have been too great.

He was becoming more irritable, more sticky-fingered, and he chalked it up to the effects of Aku. He felt some of the weight lift off his shoulders knowing it wasn't a degradation of his morals, but a disturbing increase in pressure from a literal evil plaguing his mind. This damned lust. He couldn't get a grip on it. It was painful to walk while at full mast.

And these lusts, they were driving him mad. He kept his stoic façade up until he reached a secluded area of the mountains. The monks were only a few miles away if his mental map was accurate. He could reach it before the end of the day if he wasn't stopped by anything else.

With no eyes able to see him, he dropped down, back leaning against the face of the butte he was on. There was little wind thanks to the structure of the mountain blocking it. He hadn't felt this so elated to touch himself since he'd first discovered masturbation.

He unwrapped his fundoshi with his tainted hand, raising the human hand to his mouth to give it long, broad strokes with his tongue to spread out his saliva. His other hand, completing its task, reached down to fondle his balls. He gripped at his member, spreading the spit over it, moving to the base and tracing steadily upwards with a light touch. He winced at how painful his length throbbed from the wait.

He was caught up in his hand, so focused that when he opened his eyes and saw Aku standing before him, he nearly screamed.

Aku beat him to any words, holding his hands up in deference and saying "Waiit!" Jack covered himself quickly, though he knew that Aku had seen everything. Face red, he waited to see what the demon wanted from him. He had a feeling it had to do with what was afflicting him.

The demon's eyebrows furrowed in what seemed to be concentration as the demon struggled to get the words out. Aku rested a hand on the cliff edge, wriggling uncomfortably. "I, I need you to…" Oh gods, his essence really wasn't making it easier for himself with how much of Jack's need it was transferring to him.

Jack had the audacity to look concerned for him!

"I need to you to stop holding your sausage hostage and start sharpening the meat sword."

Jack stared at him. He wasn't sure what the hell Aku meant, never having heard of this terminology back in the feudal era.

Aku stared back. "Uh, polish your weapon?"

Jack continued to stare blankly.

"Playing a solo on the devil's clarinet?"

Silence.

"Jack off!" Aku roared.

Oh.

Jack frowned at his name being used in that sort of way. "That is not funny, Aku," he said, wishing to stand but his legs felt like rubber with how much he desperately needed to get off right now.

Aku seethed. "If you don't, then I'll do the job myself!" His eyes glowed as he forced his essence to take over. The black hand whipped away the flap of Jack's gi that he'd been using for some semblance of modesty, and gripped roughly at the man's member. Too roughly. Both let out a simultaneous cry of pain.

"You do not know how to be gentle, and if you do it again, I will let you suffer!" Jack warned.

"As if I'm not already," Aku muttered back.

Jack wasn't sure what was going on here, but it seemed like Aku was directly impacted by what went on with his body. If that was the case, then that meant… that the evil wizard was just as unfortunately aroused as he was.

"Why do you want me to do this?" Jack asked, one hand stilled at the hilt of his blade in case this was a ploy.

"Because what you're feeling is hindering me from having a clear head, and I tire of it," Aku spat.

"That sounds like it would benefit me and harm you," Jack pointed out.

"Yes, but then you would continue to wander with that smaller sword of yours chafing every step of the way, and I'm sure you just love feeling that pain."

The samurai looked down in consideration. It was hard to think with blood rushing anywhere but his brain, even with the threat of Aku looming in front of him.

"I will do it," Jack began. Aku looked enthralled until Jack held up a finger, "But only if you will remove this parasite from my body without harming me." The demon agreed quickly, but Jack held up a second finger. "And you will also give up doing evil."

Aku bared his teeth in unrivaled hatred. "No."

"Then you will sit here and suffer," Jack smirked and crossed his arms. He may be suffering himself, but he still knew how to keep his hands off of himself.

The demon glowered at him, rocking back and forth, so unfamiliar with dealing these carnal sensations. He grew so frustrated with pent up energy that he turned away and unleashed hot white lasers from his eyes to demolish a mountain peak far away. When he finished seething, he turned back to the samurai, clearly unhappy.

"A day."

"A year," countered Jack.

"Don't be unreasonable," said Aku. "A week."

"A year," Jack remained firm.

"Six months?" Aku tried.

Jack paused, then agreed. Six months was better than nothing and way more than Aku was originally haggling for. He expected the demon to go back on his word at some point, but he would be ready. He would likely be able to find another time portal within that time; the monks were supposed to have one, right?

Jack's hand returned to its position around his staff, finger pads brushing the tip of his head experimentally. Jack saw Aku stiffen, mouth shutting and eyelids fluttering.

Aku hated that he was basically a puppet, subject to the whims of the samurai who now held Aku's satisfaction in his meaty hands. Hands skilled in wielding more than one type of sword.

Jack seeing the demon so pacified by a simple and natural motion shot heat straight from his stomach to his groin, excited by the sight of the demon looking not so angry, but content. His arm pumped at a familiar pace, a bead of pre dripping from him. He panted and groaned and sweated as he worked his shaft, curling his palm about the head of it, smearing that pre all over the sensitive head. He could hear the demon getting worked up, but Jack's eyelids were heavy from just how good it felt after holding back for so long.

"Samurai..." Aku winced at how pathetic his voice sounded.

Jack could feel the demon's hot breath blowing over his body from how close he was. He pumped his member diligently, fingers moist and shiny with the clear fluid dripping from the tip of his length. Another squeeze, another dollop of it. He hissed through clenched teeth, letting out a grunt of effort.

"Let me try again…" Aku requested. Jack looked horrified, remembering what had occurred just a few minutes ago. "I'll be careful, I promise!" He tried a smile, but it just looked pathetic more than anything. "Please?"

Jack rested his human hand at his base for a moment in contemplation. It was the first time the demon had shown any semblance of politeness to him. The first time he'd said 'please'.

"…okay, Aku. But no dirty tricks."

It felt surreal to have his black arm manipulated outside of his control. It felt like someone else's hand upon his shaft. As a result, felt much better than his own ministrations.

He sucked in a breath, bracing his hand on the ground as he arched into that demon hand. The hand had been cold to the touch, but imbued with the power of Aku guiding it, it seemed to gather warmth that wasn't uncomfortable. The hand even melted just slightly, enough to provide lubricant where his pre failed.

Oh gods, he should have done this sooner.

Aku was shivering where he stood. He seemed less than a demon now, perhaps more… human, as he was drawn beyond all control, steam pouring out from his mouth that was open in moaning rapture. A black mass that was pure unadulterated sensation. He was resting the weight of his upper half over the mountain's cliff, body become so hot that it was melting the snow around where his limbs rested.

The hand squeezed, and Jack gave a dry, shredded sob from the feelings of it all, curling over himself, head supporting his structure on the ground as he thrust into that cursed hand, the hand that wasn't his, the black flesh that genocided entire civilizations yet was bringing him pleasure that he held onto like a lifeline. Aku's low groan rumbled the earth beneath Jack, sending zings of extra stimuli that had him downright shaking. It wouldn't've surprised him at that point if some of those sounds coming from him were sprinkled with the name of his enemy.

He'd been gasping some words of pleasure in his native tongue here and there but when Aku did something with that hand just right, either he'd resigned to his fate or somewhere along the way lost the ability to speak, devoting every ounce of his concentration to his primitive limbic system. His hips snapped into his hand and he released into the white snow with a shriek of euphoria.

"Ohhh!" the whole place seemed to shudder with Aku as he rolled and shuddered, cliff cracking away and plummeting from the strength of his grip. He groaned helplessly with satisfaction, his body seeming to ooze, dripping large black splats onto the white snow. Jack could smell burning oil from how heavy the clouds poured from the demon's mouth.

"Ah..." the demon said. "Well done…" His voice had dropped at least an octave. Dark, tender, husky. It felt inappropriate for Jack to hear. It also shocked Jack that the demon would ever praise him. It felt odd and out of place, cutting into the haziness of his orgasm.

Aku swung a hand quickly, grabbing Jack. The sudden movement startled him and his heart was suddenly racing for a different reason. But Aku didn't crush him to death like he'd expected. Instead, the black essence of Aku that had been making its way across his entire body began to recede. It slithered its way back into Aku's mass, leaving clean, unharmed skin in its wake. Aku set Jack back down gingerly, so unlike the giant entity's brutalistic manner.

He pointed at Jack sternly. "We never speak of this again." He eyed Jack, waiting for a response.

"Uhm… Right…" Jack nodded uncertainly.

"Good." Aku stared.

"Good," Jack nodded again.

Again, Aku just stared. Then he smiled. Awkwardly, Jack tried to smile back despite his mind reeling from the events that just took place.

"Alright. Bye." Aku said, then apparated out of existence.

Jack wondered if he was just sleeping, if it was just a fever dream, a byproduct of the Aku infesting his skin, and he'd yet to actually get rid of it, or if that had really happened.

He didn't even get a chance to say goodbye back to Aku.

He could think about it on his long walk to the monks.

Where Aku would break his deal in order to stop him from going back to the past.

But of course, Aku would then swear that it wasn't him doing evil; it was just him protecting himself. That it wasn't evil, that was only fair!

It was as though nothing had changed.

Though Jack noticed Aku's smile wasn't so full of malice.