Remember how I said I was going to try and answer my own Potterverse/Darkstalkers challenge? Well, here it is, with a twist. I hope you guys enjoy it. The title, of course, is a reference to the famous INXS song. Considering that it's been about two decades since Michael Hutchence died, it seems apt. The original title was Night's Dark Agents, but this title seemed more apt to Harry and Lilith's situation.

Incidentally, if I do manage to get a Darkstalkers story off the ground, I'm not posting it as a games crossover. I only discovered this last night, but there are TWO categories of Darkstalkers fiction, one rather pathetic collection in the games section, as you'd expect, and another, somewhat more substantial collection in the anime section. As the anime version actually has character tags, I'm going to post it there.

EDIT: (8/11/2017) This version of the story had one needless complication too many. So, I've decided to, yet again, try revising it. Instead of Harry becoming a Succubus, Lilith becomes his familiar, bound to him by dint of them sharing a soul. Most of the new chapter is the same, so I'll only be posting the new chapter 2 later, once it's done.

NEVER TEAR US APART (ORIGINAL)

CHAPTER 1:

FRACTURE

Once, centuries ago, an infant Succubus was adopted by Belial Aensland, the ruler of Makai, the demon realm, and perhaps the most powerful of the entities known as the Darkstalkers. Her power made her a worthy heiress to his throne, but he also knew that her power could intoxicate her. So, he divided her power into three. The Succubus, whom he would dub Morrigan, would keep one third of her power. Belial would keep another third in trust until he felt she was ready for the responsibility, or when he died, whatever came first. And another third, he sealed within a pocket dimension.

Belial was unaware that this particular third of Morrigan's power would soon develop its own sentience, a life of its own. It was a miscalculation that, in some timelines, would have cost him, or rather, his heir, dearly. In most timelines, this isolated third of Morrigan's power would be found by Jedah Domah, a rival to Belial's throne. This mass of energy with a personality would be given a body, and a name, Lilith.

However, in this timeline, the power that would become Lilith was found by a very different party indeed. A group of Unspeakables from the British Ministry of Magic would find the pocket dimension by accident. And that power, and the sentience that came with it, entered into a young Unspeakable by the name of Lily Potter, who was unaware that she was pregnant at the time.

As her child developed, Lily didn't know it, but her child had two entities within him, and a single soul. Had she known what shared a body with her son…well, she would have accepted him anyway, along with his passenger. Though the same couldn't be said about the rest of Magical Britain. Her son shared a body with two other entities than his own…well, until one of them consumed the other.

Our story picks up nearly sixteen years after her child's birth, nearly fifteen years after events conspired to kill Lily Potter, her husband, and elevate her son to one of the most famous people in Magical Britain…though Harry Potter's star is on the wane…and soon, something darker will rise…

Well, this sucked balls, to say the least.

Well, first things first, he had been an unwilling participant in his nemesis' Happy Resurrection Day party, and now the snake-faced bastard was making some bombastic speech (seriously, Voldemort loved to hear himself talk). And then, there was the fact that his comrade (he couldn't really consider Cedric a friend) was sprawled on the grass nearby, dead, voiding his bowls, and staring at the sky with an imbecilic expression of terminal surprise. And now, he was going to be following him before long.

And that was on top of this year being one of his more interesting at Hogwarts so far, what with half the school turning their back on him out of petulance, being forced to participate in a dangerous tournament, facing off against dragons, merpeople and a bitchy journalist, culminating in tonight. With him being tied to a bloody gravestone (literally bloody, thanks to Pettigrew's clumsy attempts at phlebotomy), and Voldemort doing his little monologue about how great he was, how pathetic his minions were, and how Harry was going to die tonight. Yawn.

He'd be a lot more panicked in this situation if he didn't have Lilith running commentary.

"Oh, for the love of Makai, he's enjoying the sound of his own voice, doesn't he?" she remarked from where she leaned casually against the gravestone Harry was tied to. "A shame he didn't inflict more pain on those inbred minions of his. I wanted to see more blood and soiled robes. I mean, seriously, monologues from villains should be informative, not boring. They're telling you your evil plans, after all. Maybe he's hoping to bore you to death."

Harry stifled a snort of laughter at Lilith's snark, though he couldn't resist shooting her a glance. He had always thought that she was his imaginary friend, one who had been a comfort to him in the Dursleys' house, his first friend. But if she was a product of his imagination, he had to wonder why, since turning fourteen, she had started dressing like she did recently.

True, she always had the short mop of violet hair framing a cute face, not to mention the crimson batwings protruding from her back, and a smaller pair from her temples. But since he turned fourteen, she began wearing a scarlet leotard that left little to the imagination, plus blue stockings with bat-like patterns on them. Thank Merlin she was growing as he did, but still, she seemed to dress like that partly to fluster him. She could dress in other costumes if she wanted to.

Of course, her frequent interjections had gotten him into trouble more than once due to his reaction, and he tried not to talk to himself. Hell, not even Hermione knew about Lilith, and she was his best non-imaginary friend. Though she would definitely look askance at him if she knew.

I'm going to die here, aren't I? Harry asked mentally once his mirth died down somewhat. I mean, I want to find a way to get out of this, and I intend to, but…I'm alone…aside from you, anyway. I'm surrounded by Death Eaters, and Voldemort's back to full power. I'm Merlin-knows where, and nobody I trust knows where I am. Cedric's dead, and I'm probably going to follow.

Lilith's retort died on her lips. She knew Harry was afraid. She moved over to him, and gently placed a hand on his cheek. He felt little but a light, tingling warmth, a phantom hand on his face. "I wish I could help you. But…I don't even have a body. My power…no, our power, as we are one…remains locked away. Maybe given time, we can break that barrier. I've been whittling away at it for some time, but even so…if we're lucky, the Killing Curse will have no effect on us. We are one being, after all, and not entirely human."

Merlin, he was going crazy again. Lilith's claims to being part of his soul, that his soul wasn't entirely human, was it any wonder he felt that way? Harry loved her, but still, she said many things that seemed designed to test his sanity. Maybe his theory of her being a split personality wasn't so farfetched after all.

It was at about that point that even Voldemort tired of hearing his own voice, and decided to indulge in his more conventionally sadistic streak. He also didn't believe in Harry having a sporting chance, deciding to torture an incarcerated teenager. "CRUCIO!" he roared.

Now, Harry was no stranger to pain. In fact, given what the Dursleys did to him, he could be said to be a connoisseur, though not in the manner of actually enjoying pain. But the only thing he would consider to be worse pain was the venom of the Basilisk, and at least that had been mostly confined to one area. This was systemic, as if the dragon from the First Task had set him aflame. Pain wracked his nerves, his muscles, even in his very bones themselves.

And he could hear Lilith screaming alongside him.

He would do anything, anything, to keep the both of them alive. He may have been afraid he was going to die, but he wasn't actually resigned to it. He would fight to the very end.

His only coherent thoughts as his mind was consumed by the fires of the Cruciatus were, I want to be strong! I want both of us to be strong! Please, we need to live!

Most such entreaties, whether they be prayers to a deity or just to some impersonal force of the universe, almost never work. Wishful thinking can never truly deny reality, even when you have powers like magic.

And yet, the vast reserves of power deep within the entity that was both Harry Potter and Lilith Aensland, dammed by their unwitting fusion years ago, were almost ready to burst forth. All that was needed was the right catalyst.

The Cruciatus Curse didn't just need powerful emotion to fuel it. It also needed magical power, period, to achieve its full effect. Vast torrents of magical energy were forcing themselves into Harry's body, setting his nerves aflame. And the sensations he felt, Lilith shared. And while she was somewhat masochistic, the Cruciatus went beyond the pale.

The Cruciatus, however, was also eroding the barriers keeping the power of Lilith Aensland at bay. And soon, they had eroded enough that the power burst forth. And it did some rather…interesting things in its wake.

They intersected with the desires of Harry and Lilith, reacting to their feelings of impotence (and NOT of that kind, get your minds out of the gutter). Harry wanted to be strong enough to stop Voldemort. Lilith wanted to have a body so she could help her friend and very literal soulmate.

And for once, their wishes were granted…

The next thing Harry knew, he was falling from the gravestone, his bindings removed. The Death Eaters and Voldemort were all blinking, as if briefly dazzled by a flare of light. The pain receded, and he found Lilith helping him to his feet. Wait, what? She was solid? And why did he feel…strange?

Voldemort recovered first, and then glared. Only to blink in astonishment. "Who…how…what trickery is this?!" he demanded. "What is a Succubus doing here?! And…what have you done to him?!"

Lilith merely glared at him. "Why should I answer the questions of a dead man?" She flung her hands at Voldemort, and shouted, "SOUL FLASH!"

A luminous green bat appeared, flying at Voldemort at speed. The ophidian-faced warlock dived away, but one of his minions wasn't so lucky, a hole punched through the man's torso. Lilith was attacking another, slashing him into the air with her wing and a cry of "SHINING BLADE!"

Harry didn't want to let Lilith fight alone. Memories of something came to him, and he mimicked Lilith's initial attack, though a different name came to mind. "SOUL BURST!" A green lion's head blasted forth, and hit another Death Eater, sending them sprawling to the ground.

The pair of them tore through the Death Eaters, dodging spells at inhuman speeds. Harry lost himself in a strange pleasure he felt as he was fighting, as if the adrenaline running through his veins was giving him pleasure as well as heightening his senses, speed and strength. He felt the same feelings through his link with Lilith. She was enjoying this. No, they both were.

Soon, the whipcrack noises of Apparitions filled the air, including that of Voldemort. Soon, the only Death Eaters left in the graveyard were dead ones. Soon, the only living beings in the cemetery in Little Hangleton were Harry and Lilith.

Lilith shivered, but not in fear or anxiety. "Whoa…" she murmured, her cheeks crimson. "What a rush. So this is what it's like having a proper body…"

"Why did that feel so good?" Harry asked, more than a little disturbed by what he felt. "To fight like that?" To kill them, he added mentally.

Lilith shrugged. "When we're physically or mentally stimulated in the right way, we produce a substance that gives us pleasure, as well as sustaining our existence." She gave a small but vicious grin. "That, and the fact that it feels so good for cruel hunters to become the hunted for a change. Though that damned rat got away. I was going to capture him to try and get Sirius exonerated, but…well, I guess rats know when to flee a sinking ship first." She sighed, and a swarm of bats surrounded her. Her batwings disappeared, and her clothes dissolved, only to be replaced with a knee-length tartan skirt and a Black Sabbath shirt depicting a gurning Ozzy Osbourne. She then strutted up to him, and touched his face. Suddenly, a swarm of bats surrounded them both. He felt something of himself change, something he wasn't aware that was different, until it changed back.

"What did you do?" he asked.

"Harry…you changed. Our magic, and the fact that we are two entities with a single soul, reacted in our time of need. Our desperation fuelled this change. So, here we are." She looked over at the trophy, and walked over to it, and Cedric's body. "We'd better get our stories straight before we head back here. I'm a friend of yours that you've known at Surrey since you were young. I happened to be up here for a holiday, and helped rescued you. I'm sure Dumbledore will figure out what I am…what we are, but to the public…that's our story."

Harry stared at her, before he asked, "But…what are you?"

She looked at him. "I am a Succubus, Harry," she said, pulling him over to Cedric's body, and as Harry numbly held the body, Lilith clasped his hand in his own, and then, as she reached down for the trophy, she said, "And now, so are you…"

CHAPTER 1 ANNOTATIONS:

Well, that just happened.

Now, why is Harry, a male character, a Succubus? Surely the male equivalent of a Succubus is an Incubus? True, but an Incubus is a VERY different creature in Darkstalkers canon to a Succubus, and not just because of the whole different gender. Incubi seem to be more monstrous and insect-like in Darkstalkers from my research, so for the sake of this story, Harry is, improbably, a male Succubus.

And Lilith, unlike the games, doesn't look too young for Harry to have a relationship with. Then again, considering that they're both, effectively, the same being with two different personalities…well, does their coming relationship count as incest or masturbation?

No numbered annotations this time.