((I am so uninventive. The title for this is taken from a Seph/Cloud Kingdom Hearts 'verse doujinshi by the same name. For some reason it got stuck in my head and is preventing me thinking of anything better to call this thing. orz))

I've wanted an excuse to write tentacle porn forever. It was kind of a thing in my tiny little group when I first joined the fandom some five years ago; I can't believe it's taken me this long to get round to it. I guess I never had a premise as to why there were tentacles involved. Even the premise in this fic I kinda pulled out of my ass as a hand-wavey excuse for it. ^^;;

Who cares, though? Tentacle porn! Does there even need to be an excuse?

Technically, this is Kingdom Hearts 'verse. I've still filed it under FFVII, because it is purely Sephiroth and Cloud, and the mentions to KH are really not all that relevant at all. The only reason it's set there is to use 'The Darkness' (TM) as a plot device. But you guys in the FFVII section are much more likely to be interested in it than anyone in the KH section would be.

So, yeah, whatever, I'm vain, I want to get more readers. This is going in the FFVII section. Sue me. ¬¬

(Also, apparently being corrupted by darkness via tentacle porn results in random wing growth. ...so, y'know how Sephiroth has those two extra buttwings in KHII, but not in the first game? I wonder how that happened... fufufu.)

Warnings: Tentacle porn. Some dub-con/non-con elements.


"So. You made a deal with Hades."

Cloud tensed. The voice was unmistakably Sephiroth's, and not a moment later the man himself emerged from the shadows.

That was the last thing Cloud needed.

"That's none of your business."

Cloud pushed past Sephiroth, storming onwards. He hated this place; the dank, pervasive darkness; the oppressive caverns; the distant screams of tortured souls that Cloud couldn't so much hear as feel, buzzing in the back of his mind and setting him on edge.

He didn't want to stay a second longer than he had to in the Underworld, and he sure as hell didn't want to deal with Sephiroth here.

Sephiroth chuckled darkly behind him. The sound echoed, and Cloud grit his teeth.

"Why do you insist on clinging to the light?"

"I'm not talking to you."

"Every step you take leads you deeper into the darkness. Where you belong."

Cloud whirled around, raising his sword in warning. "Shut up. I'm not like you."

Sephiroth just smiled, brushing the blade aside with the back of his hand. Cloud hissed his annoyance at Sephiroth dismissing him so easily, but he let his sword drop back to a low guard.

"I made a deal with Hades so that I could find my friends," Cloud divulged, irritation clear. He didn't need to explain himself, least of all to Sephiroth. "I'm not giving in to the dark, and I'm not like you."

"Your friends, hm?"

"Yeah. Not that you would know anything about that."

Sephiroth gave that chuckle again. "You really think that they survived, Cloud? Our world was destroyed, completely overrun by the Heartless. It was too bad that the Planet's Hero couldn't fight them off."

Cloud physically flinched. That was a low blow. He loathed how Sephiroth could do that, how he knew him well enough to use Cloud's own guilt as a weapon against him. At least Cloud had tried. Gaia, he had tried, but the enemy had come out of nowhere. They had been everywhere, all the shadows in the world animated into vicious, devouring life. So many, relentless. Cloud hadn't even know how to fight them back then.

And all the while Sephiroth just stood back and watched as the Planet was consumed. He had finally got his wish. The Planet was a dead husk, and he was free to travel to new worlds to corrupt them too. Sephiroth had been all too ready to accept and use the powers of darkness.

Cloud shook his head. "I survived. You survived... unfortunately. Maybe the others could have made it to another world too."

"And you think making a deal with Hades will help you find them."

Cloud wanted to punch him. Sephiroth was so damn patronising. "Yes," Cloud confirmed, daring Sephiroth to disagree.

"Because finding your friends will help you find your light again, is that it?" Sephiroth smirked.

Cloud glowered. "What is it to you?"

Sephiroth stepped closer, cutting the distance between them to almost nothing. "We are the only two left, you and I, all that remains of our Gaia. Is it so strange I want to keep you? A souvenir, if you will."

"Not interested."

"You enjoyed being my puppet before."

Cloud felt the heat rush to his cheeks. "I'm not your puppet!"

There was a dark humour in Sephiroth's eyes. "No? Perhaps not. Yet you cannot deny the darkness in your heart."

"Shut up."

"So ready to consume you."

"Shut up!"

They were in close quarters, too close for blades, but the perfect distance for Cloud to loose a fist for Sephiroth's face. Sephiroth caught his wrist easily.

"The light doesn't suit you, Cloud. Holding on to hope only makes the pain worse."

Cloud winced at Sephiroth's grip, tight enough to bruise him. He shook his head. He wasn't listening to this. He couldn't listen. Sephiroth was wrong, Cloud knew that. But at the same time... all Cloud had left was loss and guilt and despair, and it was a heavy burden to bear. It was so easy to see all his failings in the light.

"Leave all that behind you. Let the darkness bury the past."

Cloud broke free of Sephiroth's hold, snatching his hand away. But there was no conviction in his voice when he spoke. "I can't."

Sephiroth pressed forward again and Cloud stepped back, giving up the ground now. "Why not?"

Cloud's back hit the cave wall, Sephiroth's body caging him in. His grip on his sword loosened, and it slipped from his fingers, the ring of metal hitting rock echoing hollowly through the tunnels. Cloud winced, then looked away from Sephiroth, eyes downcast. "I just can't."

"That is supremely irrational reasoning, Cloud." Sephiroth smirked, brushing his hand against Cloud's jaw. "You know as well as I that you will never let go of the past, nor your darkness."

He tried to flinch away, but Cloud had nowhere left to go. It wasn't just that he'd been backed into a corner. The rock beneath Sephiroth's feet writhed with darkness, and beneath Cloud's too. The darkness was reaching for him, thin tendrils wrapping around his boots like wisps of smoke, anchoring him in place.

Sephiroth saw him notice and smiled dangerously. "You would be amazed what the darkness can do when you learn how to use it."

Cloud set his jaw, trying to ignore how close Sephiroth was. Trying to ignore the way his touch made him shiver. "Not interested."

"Oh, is that so?" Sephiroth purred. This time it was his lips that brushed along Cloud's jaw, and Cloud gasped. "I bet I could make you interested."

"Sephiroth," Cloud hissed. He raised his fists to try and push Sephiroth off, but somehow they only ended up resting on Sephiroth's chest instead. Sephiroth's hands settled on Cloud's hips.

Sephiroth was right about one thing. They were all that was left. Just the two of them, the only remnants of the world Cloud had known and loved. Everything he'd fought so hard to protect... everyone... all of that was gone. Sephiroth was all that remained. As much as he hated him, how could Cloud let go?

Sephiroth's lips met Cloud's, and Cloud didn't resist. "Good, puppet," Sephiroth smiled.

"I'm not your puppet," Cloud maintained.

"And yet here you are, so willing to let me manipulate you."

He hated Sephiroth for saying it, but Cloud wasn't certain it was something he could deny. When Sephiroth kissed him again, Cloud kissed him back with all the desperation of a man drowning.

The kiss was aggressive; their kisses always were. Sephiroth used his mouth to dominate Cloud, tasting him, defiling him. Cloud's hands crept up, first cupping Sephiroth's neck, then fisting into his hair. Cloud tugged at the silver strands and Sephiroth growled, nipping at Cloud's lower lip.

Sephiroth explored every inch of Cloud's mouth, and Cloud returned the favour. It was thorough, deep and drawn out despite the heat and violence behind the assault.

Cloud moaned against Sephiroth's lips. It had been a while since they'd... done this, but Sephiroth hadn't forgotten a thing. He knew exactly how to kiss Cloud, how to slide his hands beneath Cloud's top and stroke down his sides in a way that made him shiver with arousal.

"Sephiroth..." Cloud breathed. It was supposed to be a protest. It came out a plea for more.

Sephiroth broke away, leaving Cloud panting and dazed. He carefully untangled Cloud's fingers from his hair, placing Cloud's hands out against the cave wall on either side of him. The darkness bubbled behind him like thick black tar, capturing his wrists.

"What...?" Cloud asked in confused apprehension, feeling the pressure constricting around his arms. This was new.

The darkness beneath him had only deepened and spread while they had been kissing. The tendrils had gained substance; they weren't just wisps of darkness anymore, but had grown thick and solid. They weren't just holding Cloud's feet down either. The darkness had crept up Cloud's legs, starting up his thighs, as well as around his wrists and arms. Their grip on him was firm and immoveable, binding him.

Even though he knew they were just manipulations of the darkness... these looked real. Alive. And a lot like tentacles, because that's exactly what they were meant to be.

"As I said, it is amazing what the darkness can do when you learn to control it."

Cloud jerked away as one of the tentacles around his thigh shifted higher. Definitely solid; Cloud could feel the strength of it, the darkness roiling beneath the surface like muscle. The tip of it lifted to Cloud's belt, flicking it open. "You're doing this?" Cloud accused.

"Obviously."

Cloud groaned as one of the tentacles rubbed along the seam of his trousers, against where he had been beginning to harden from the passion of Sephiroth's kiss. The one fiddling with his belt had successfully undone it and pulled it away and had now moved on to working on his zipper.

"You- you're fucked up, you know that?" Cloud gasped.

"Really?" Sephiroth raised an eyebrow, smiling indulgently. "And what does that make you? You seem to be enjoying yourself."

The tentacle rubbing against him increased its pressure, and Cloud's hips bucked into the touch.

Sephiroth had a point. As fucked up as he was, Cloud was just as bad for enjoying the things Sephiroth did to him, for all the things they'd done in the past. For getting turned on by this.

And... yeah, it was turning him on. Cloud had always loved it when Sephiroth pinned him down, but this was something else. The tentacles bound him completely, and he was helpless in their grasp. He struggled against them and they didn't give an inch.

Sephiroth watched him with a look that was pure lust.

Another two tentacles slid beneath Cloud's top, working it up as far as it could go with Cloud's arms still outstretched. It left his torso exposed to the chilled air of the caverns, and Cloud shivered. He felt smooth leather tracing against the taut lines of his stomach.

"Now this is a look that suits you," Sephiroth approved.

Cloud growled. "Put me down," he demanded, but the conviction in his voice was noticeably absent.

Sephiroth didn't even bother to deign that with a reply. His mouth pressed against Cloud's throat, biting down, and Cloud bucked in the tentacle's grip. He squirmed futilely as Sephiroth marked him, leaving dark, messy bruises vivid against his pale skin, while the tentacles coiled and curled around him.

They seemed aimless, absent-minded, as if they were unsure what to do without Sephiroth's attention to direct them. The ones that had been working on Cloud's pants had got as far as undoing his fly, but had now settled into resting low against his hips, undulating in small, stroking movements. Like a very strange massage, almost. It felt good.

Cloud was embarrassed to find he was panting already.

Sephiroth licked a trail over the bruises he had left, smirking as Cloud moaned. It was his hands, rather than the tentacles, that finally worked their way inside Cloud's pants.

"Sephiroth..." Cloud breathed

"Yes?" His hands were on Cloud's ass, the soft, worn leather of his gloves kneading into Cloud's skin, and Cloud bit his lip, brows furrowing with the effort of holding back another moan.

That was a shame; the noises Cloud made when he let go were... very likeable.

Sephiroth teased the tentacles back into action, and Cloud gasped loudly when one of them massaged firmly against his cock. The two that had previously worked his shirt up now found his bared chest, coiling around him and rubbing against his nipples in a way that made Cloud want to squirm. Others still drew his trousers and underwear down, leaving him entirely exposed. He felt a rush of heat reddening his face at that, part embarrassment and mostly arousal.

Cloud moaned. His naked erection was now pressed between his own stomach and Sephiroth's SOLDIER belt, leaving little drips of precome on the black leather, with a tentacle wrapped around it and stroking him in a way that sent any semblance of coherent thoughts scattering. Cloud didn't even notice the tentacle that had crept up to his lips until it was already in his mouth.

He made a choked gasp, somewhere between shock and protest.

Not that he would've minded blowing one of the tentacles all that much. It wasn't exactly something he'd ever expected to do, but with Sephiroth involved in his sex life he'd learnt to roll with much weirder. It was only that the tentacle - or the darkness, since that was what it was created from - tasted incredibly unpleasant.

Cloud would've spat it out if he could, but Sephiroth didn't give him that option.

One of Sephiroth's hands left Cloud's ass to tangle into his hair instead, yanking his head back to give the tentacle easier access. It slid in, deeper than a normal blowjob would ever be, and Cloud gagged. His jaws were stretched wide, chest heaving as he began to struggle to breathe. He could feel tears pricking at the corners of his eyes. It was purely a physical response to trying to fellate something that huge and that deep, but it figured Sephiroth would get off on making him cry either way. Bastard.

He bit down, hard, and the tentacle jerked and withdrew.

Cloud spluttered and coughed, gasping in shuddering breaths. The thing had left a trail of some slick, inky fluid, like liquid darkness, leaving dark stains against Cloud's lips and collected in the corners of his mouth.

"What the hell?!"Cloud choked out when he had got enough breath back.

"No?" Sephiroth asked, eyebrow raised.

"Hell no. That thing tastes rank."

"I see. My apologies." Sephiroth's tone was polite, detached, but his eyes and the twist of his lips were full of sarcasm and amusement at Cloud's expense.

The tentacle brushed against Cloud's lips again and he twisted his head out of the way. He opened his mouth to make some biting comment, only to have it push its way inside. Cloud tried to jerk away, but there was nowhere to go, and the tentacle only slid in deeper until Cloud gagged on it again. The glower he shot Sephiroth was absolutely murderous.

Sephiroth leant in and traced his tongue over Cloud's lips, stretched wide around the tentacle in his mouth. Cloud growled, low and threatening in the back of his throat.

"Allow me to take your mind off it, then," Sephiroth offered with a predatory smile, and Cloud couldn't tell if he was mocking him or not.

The tentacles wrapped around Cloud's thighs tightened, subtly working his legs open wider. The hand that was still on Cloud's ass spread him open, fingers brushing over his entrance before being replaced by a tentacle.

It felt slick, probably with the same liquid darkness that Cloud could taste on the one in his mouth. The tentacle rubbed against him, lapping at the ring of muscle, teasingly pressing the tip inside him to open him up. Spreading the slick fluid and preparing him. It moved in time with the tentacle that was stroking his cock, both of them tormenting him together. Every touch added to the stimulation, but neither of the tentacles would give him what his body craved. It was maddening.

Cloud whimpered, rolling his hips in a plea for more.

"Shall I make them fuck you, Cloud?" Sephiroth asked, the question little more than a hoarse whisper.

Cloud still had enough of his mind to glare at Sephiroth from the corners of his eyes. But, slowly, he nodded.

"Good boy." Sephiroth's lips brushed against the shell of Cloud's ear, making him shiver. "Let the darkness in. Let it corrupt you..."

Cloud wished he could speak, because that much melodrama required some kind of biting retort. Sephiroth had been hanging out in the Underworld for way too long. He hoped the eyeroll he gave conveyed the sentiment well enough.

Sephiroth chuckled. The tentacle toying at Cloud's entrance shoved inside in one smooth, hard thrust.

"Nn-ng!"

Sephiroth controlled the tentacles, he had created them; he knew exactly what he was doing to Cloud. The tentacle was thick, stretching Cloud open, big enough to be almost uncomfortable but never quite painful, and so gods damned deep inside him.

Cloud eyes rolled back, panting with the strain of accepting the intrusion.

"You like being filled like this, don't you?" Sephiroth's voice was low and husky.

Cloud could only groan, but that small noise was practically an affirmative anyway.

It felt almost too full, like he could break any moment and- fuck. Oh, fuck. When it moved, it moved inside him in ways that would have been impossible for anything else. The tentacle was strong and flexible and seemed to be able to rub against every single sensitive spot at once. The tip found his prostate and stroked insistently.

The tentacle on his cock sped up, more tightness, more pressure, while the one inside him settled into a steady, rocking rhythm, hard and relentless.

It was too much to bear, too much pleasure, too many sensations, and Cloud cried out around the tentacle in his mouth. He was being filled and fucked from both ends, by these things, and Sephiroth was practically purring as he watched the darkness defile his precious puppet.

Cloud made an incredibly erotic sight like that, stretched out so Sephiroth could see everything. The tentacle wrapped around Cloud's cock, stroking him, cradling his balls. It's twin behind it, pumping deep inside Cloud's ass. Cloud's face was flushed red and his eyes glassed over with pleasure and arousal and lust. Thin tracks of saliva threaded away from where his mouth was stretched too-wide open to accommodate another tentacle.

As lovely a sight as it made, Sephiroth let the tentacle in Cloud's mouth slide free.

Cloud groaned, coughed, and attempted to spit out a glob of black-tainted saliva. "Still fuckin' gross," he grumbled, frowning for only as long as it took for the tentacle in his ass to thrust against his prostate again. "Nn!"

"How does it feel, Cloud?"

The tentacle around his cock tightened, sending another wave of pleasure through him. "Mmn, I..."

"You always did love getting fucked."

Cloud bit his lip, trying to find the words his mind wanted to say before they were lost beneath pure sensation. "I usually... try not to admit that," he gasped. Wait. That wasn't the denial he'd been aiming for. Fuck.

Sephiroth laughed, although the sound was strained with his own arousal. "Come here."

Not that Cloud could have moved at all, but the tentacles binding Cloud's arms shifted forwards, letting his upper body drop. He ended up with his face in Sephiroth's crotch, his cheek grazing against the bulge in the leather of his pants.

There wasn't much subtlety in what was being asked of him. This, though, this was something he was very used to doing. Maybe even enjoyed, when he allowed himself to forget that he was supposed to hate Sephiroth. Cloud took the zipper between his teeth.

The tentacles slowed almost to a halt as Sephiroth's breath hitched. He stared down at Cloud, eyes dark with desire.

Of course, there was only so much Cloud could do with his hands bound as they were. Once Cloud had successfully undone his fly, Sephiroth took the liberty of drawing himself out. His own touch made him hiss with restrained pleasure. The head of his cock was already slick and wet with precome, hard and aching just from watching the delectable display that Cloud made.

Sephiroth's hands tangled into Cloud's hair as Cloud ran his tongue along the length of his erection. His lips closed around the head, a hot, open-mouthed kiss, and Sephiroth groaned.

"Yesss, puppet. Just like that."

Cloud took Sephiroth deeper into his mouth, sucking hard. Compared to the stupid tentacle this was easy, and much more pleasurable.

Sephiroth gave Cloud enough time to get comfortable as he bobbed his head to take all of Sephiroth in. Then the tentacle inside him moved again and Cloud's eyes shot open. He moaned around Sephiroth's cock, creating a delicious vibration which only made Sephiroth moan in turn.

The tentacles returned to their former intensity, and Cloud let out a muffled scream. There was no way that he could last with his senses being assaulted three ways at once. He was helpless to do anything but feel as his body was ravaged; every jolt of pleasure, every sharp spike of bliss. The heat rising inside him felt almost too good to bear.

Sephiroth fucked Cloud's mouth with only his own pleasure in mind. It was clear that Cloud couldn't last much longer, but even so, Sephiroth didn't have much catching up to do. Cloud's mouth was hot and wet, and he sucked and swallowed around him as though he was still every bit Sephiroth's puppet, so determined to please. They were both close.

Cloud gave a sob of pleasure as the tentacle around his cock tightened, stroking him harder.

"Come for me, Cloud," Sephiroth murmured, and Cloud was helpless to do anything but obey. The tentacle in his ass pounded in deep and hard, rubbing against all the most sensitive spots inside him, and it was enough to push him over the edge. He moaned, trembling all over as he came hard. The tentacle around his cock milked him through his orgasm, still firm and insistent even as Cloud spilled his seed out on to the ground.

The tentacles hold on him tightened reflexively, squeezing almost to the point of pain as Sephiroth tensed. He let out a low groan as he hit his own peak, coming into Cloud's mouth. And still Cloud kept swallowing around him, drinking every drop until Sephiroth was spent.

"So well trained," Sephiroth approved breathlessly.

The tentacles loosed, then gradually withdrew, sinking back into the darkness and the shadows. Cloud shakily stood, stretching his stiff limbs and trying to remember how to function in the aftermath of having his mind completely blown. He stumbled, only to find Sephiroth there bracing him against his chest.

Sephiroth kissed Cloud firmly, drawing a low groan from the younger man. He could taste himself in Cloud's mouth, as well as the unfamiliar tang of the dark liquid from the tentacles. Cloud was right. That was quite disgusting. Sephiroth smirked as he drew away, tucking himself away and fixing his clothing.

This time Cloud managed to stay up long enough to get his own clothes in order. But he felt utterly boneless in the wake of his orgasm, the trembling in his overworked, oversexed body not allowing him to stand for any longer than that. He slumped down against the rock wall of the cavern.

"Well," Cloud rasped, gradually regaining his breath. "I guess this explains... you appearing out of nowhere. You never wanted to talk to me at all, did you? You were just horny."

Sephiroth huffed a laugh. "Hardly anything so base, Cloud."

"Then what-" Cloud's voice choked off into a small noise of distress and confusion. The heat in his body hadn't faded, he realised. If anything it was getting worse; it felt like burning, and a sudden sharp spike of pain lanced through his back. Cloud doubled over. "What did you do?!" he hissed.

Sephiroth stared down at him, infuriatingly impassive with just a touch of curiosity. "What appears to be the problem?"

Cloud glowered. There was no way this wasn't Sephiroth's fault. His back felt like it was being stabbed by Masamune from the inside.

Skin and muscle split apart, bursting blood and threads of darkness. Cloud screamed.

The white hot agony faded to a dull ache, and Cloud found himself on the floor at Sephiroth's feet.

"How curious," Sephiroth commented. He knelt down to touch something behind Cloud's back, something that sent sharp needles of pain washing through him again. It felt raw, like a wound half-healed and hot from infection. "So this is what happens when the physical form is corrupted by darkness."

"What... what did you do?" Cloud repeated shakily. The pain was dying back quickly, at least, but the sensation left in its place was equally as disturbing. What did Sephiroth mean, corrupted?

Cloud tried to turn and see what had happened, though he didn't expect to be able to given how the pain had been in his back. Specifically, his left shoulder blade. He was wrong.

There was something there. A limb - a wing - black as the darkness Sephiroth commanded, with the same twisted, monstrous formation as he had seen in many of the Heartless. And even worse than that, Cloud could feel it. He could move it. It was his. It was his and Sephiroth had given it to him, there was no doubt in his mind about that. He turned on Sephiroth, livid.

"You- you fucking bastard! You knew this would happen!"

"Not at all. Call it... an experiment."

"I have a wing."

"As do I."

"Is that supposed to be comforting? That only makes it worse," Cloud growled.

Sephiroth smirked. He made a move to touch Cloud's wing - it was different to his, all sinew and membrane rather than feathers - but Cloud jerked back away from him. A shame; wings could very fun to play with, and Sephiroth was going to look forward to introducing Cloud to that. But his puppet clearly needed time to process the existence of the new limb, so Sephiroth acquiesced.

He formed a portal of darkness behind himself and turned to take his leave. Let Cloud stew in his own time.

"Sephiroth-" Cloud began.

Sephiroth glanced back. For a second, so quick it could almost have been imagined, Cloud looked... scared. Then his features settled into a scowl, and he amended whatever he had been about to say.

"You're a bastard."

Sephiroth chuckled and kissed Cloud's frown. "Until next time, puppet."

He stepped back into the darkness and vanished, leaving Cloud alone once again in the dingy grey fog of the Underworld's caverns.

Cloud closed his eyes and closed his mind until the panic and terror subsided. He stooped down and retrieved his sword from where he'd dropped it right at the beginning of their little tryst, doing his best to pointedly ignore the sensation of the black wing bobbing behind him.

He would have to figure out how to deal with that later. Maybe see if he could cut it off or something, if it came to the worst. But right now he just wanted out of the Underworld. He'd had enough of the darkness for one day. Especially dark tentacles.

"Fucking Sephiroth," Cloud muttered as he started back out to the light.