Felix Culpa

KibaSin

Summary: Kyoya never thought he would summon an actual demon when challenged to try so; let alone a demon like her. After accidentally binding himself to her contractually, he supposed he should have read the fine print before he sold his soul. [demon!Kagome x Kyoya]

Disclaimer: I do not own the characters depicted in this work. They belong to the creators of Inuyasha and Ouran High School Host Club respectively.

Genre: Humor / Drama / General / Lots o sexual tension

Rating: M

Note: This story will have heavy references to demon contracts in Kuroshitsuji in some ways.

Spell Theory 101

"This is utter nonsense." Heaving a sigh, Ootori Kyoya glared rather heatedly at the blonde prince pouting back at him with several black candles cradled haphazardly in his arms. "What in the world possessed you to use our club funds for this, Tamaki?" Not bothering to wait for a reply, he held up a hand to stop him before he even had the chance to begin. "You are scared half to death by the mere thought of Nekozawa-senpai placing a curse on you, you do realize?"

"It's Halloween, senpai." Haruhi sighed quietly to one side, holding several boxes of white chalk. "What did you honestly expect?"

His glare cutting to the girl for only a moment, he felt his brow tick when he spotted the large quantity of white marble that had been inlaid with black marble the twins were laying out off the side. Numbers crunching silently in his head, he ground his teeth at the sheer stupidity of this entire activity. "I expected," he hissed, "that we might attend a costume party, go trick-or-treating, or something equally as degrading once Tamaki set his mind to it. Not attempt to summon a demon."

"Ah," Hikaru waved his hand, "it's not like anythings going to happen anyway, Kyoya-senpai."

Kaoru bumped his brother when he snickered at the Shadow King's quietly seething response, his pen nearly snapping in half with how tightly he had his fist clenched around it. "Even Nekozawa-senpai couldn't get it to work according to tono."

"It's not just any demon, though!" Tamaki cried, his lip quivering at the glare attempting to bore a hole through his skull. "Nekozawa-senpai was absolutely certain that this demon could help him with whatever task he deemed necessary!"

"Idiocy," Kyoya snarled. "Complete and utter incompetence."

"Honestly, though, it's just a bit of harmless fun." Haruhi shrugged, ignoring the way Kyoya's very presence seemed to darken the room with the sentence. He was being a bit over dramatic about the entire thing in her opinion, though she did agree that it seemed like a pointless waste of money if Tamaki really had used host club funds for it. "People do this kind of stuff all the time. Nothing ever happens."

Tamaki beamed beneath the Fujioka girl's added support, as he adjusted the black candles in his hold to sit further up on his tiptoes in his happiness. "Just think about it, Kyoya," he sighed dreamily, "if we summoned our own personal demon helper, then maybe we could finally convince Nekozawa-senpai to—!"

"Madness." Kyoya cut him off, continuing to shift his glare around the room. "The lot of you are mad."

"That's just mean, Kyo-chan!" Honey pouted a little, clutching onto the bucket full of candy he had brought with him. "Takashi and I wanted to go trick-or-treating so we could get more candy. Tama-chan was the one who wanted to try summoning a demon beforehand!"

"You don't need more candy, Mitsukuni," Takashi said. "You have more than enough."

The pout quickly turned into a set of watery eyes, as Honey cried, "Now you're being mean, Takashi!"

"Un."

Hikaru held up a sheet of old, yellowed paper that contained the circle and pentagram necessary for the spell Tamaki had acquired from the Black Magic Club. Waving it like a banner, he called, "Haruhi, we need the chalk now!"

"Oh, uh, yeah, of course," Haruhi said, shuffling away from the scowling Shadow King finally.

"Mommy, please—"

"This is lunacy, Tamaki," Kyoya heaved another sigh. "I cannot fathom what in the world possessed you to think this was a good use of our club funds." His knuckles white around the clipboard he had started to tally all the useless items with, he had to pause for a moment at the final mark up he had circled to stop himself from completely throttling his best friend. "This is an absolutely pointless activity that will result in nothing, do you understand?"

"But if it does—!"

"No." Satisfied with the cry that resulted from the clipboard bouncing lightly off the side of Tamaki's skull, Kyoya was almost tempted to say that the sound was well worth the money lost. Almost. "This will never happen again. Never. Is that understood?"

Nursing the bump on his head, Tamaki sniffled, muttering, "It doesn't hurt to try…"

"Tono," Kaoru slid up on one side, "we need the candles now."

Hikaru coming up on Tamaki's other side, he put a hand on his chin as he glanced between them with a grin on his face. "You know," he snickered, "tono almost has a good point, though. It doesn't hurt to try."

Sensing where his brother was going immediately, Kaoru paused as Tamaki handed over the black candles without hesitation. His own grin sprouted when he turned to eye the Ootori boy, and his voice quickly started the sentence, "You're so adamant about us not doing this—"

"—one might think you're scared, Kyoya-senpai," but it was his brother who finished it.

"Ridiculous." Kyoya pushed up his glasses, saying, "Only a person actually stupid enough to believe any of this nonsense would be scared."

"You should do the spell then," Hikaru said, his eyes gleaming. "You should summon the demon."

"I bet you could summon something far more impressive than Nekozawa-senpai hoped to achieve." Kaoru added fuel to the fire, "Since you're practically one yourself already."

Looking at each other, they snickered, "The Shadow Demon."

"That's brilliant!" Tamaki perked back up immediately at the thought. "Kyoya should do the spell!"

Bristling beneath the obvious challenge issued by the twins, Kyoya quickly set his sights back onto Tamaki when it became clear he was delighted by the suggestion. His lip curled slightly upward at the presented opportunity. "If I do the spell myself and nothing happens," as it obviously would, "then I want you to promise that you will never spend our club funds on frivolous items I have not approved ever again, Tamaki."

Withering only slightly, Tamaki said, "If something does happen, then I want you to admit you were wrong!"

"Tch." Kyoya did not even bother to tell him that the request was ridiculous in and of itself. An easily won prize already within his grasp, he stuck out his hand with the clear intentions of sealing the deal with his best friend. "Fine. If something happens, I'll admit you were right all along."

Eagerly taking his offered hand, Tamaki almost squealed, "Oh, it'll be just perfect, you'll see, Kyoya! You'll summon the best demon there is, I just know it!"

The Ootori boy silently rolled his eyes.

As if.

As Anonymous Trash once said, let the sinning begin~

Some time down the line, she may do a sister fic to this universe along with me! So, no need to be alarmed if you see more demons pop up!