Hello this is Simply Hopeless a.k.a., Assassin's Kiss wanting to put out a small fic to celebrate Valentine's Day. It just happened to be Kuroshitsuji, but it's my favorite anime/manga and there really are too little stories with Ciel as a seme. I just thought the concept of what would happen if Sebastian went into heat after Ciel was a demon seemed too amusing to pass. Hopefully people will like it enough to review, because I love comments about what people liked about the story and hopefully I will be getting out some more of my stories, including this one later this month.

The Mating Rituals of Demon Butlers

Chapter One: Scent

A tall and handsome butler with pale, glowing skin and garnet eyes was busy dusting the bookshelf in his master's study. He had recently lit the gas lamps, sensing the sun would set soon and after placating his young master with some new moon drop tea and the smallest of raspberry scones, he rolled up the sleeves of his crisp white shirt and started some serious dusting.

The warm glow of the lamp bathed his lithe form in warm hues even as he narrowed his eyes at the dust lurking out of reach in the shadows. He clicked his tongue to the roof of his mouth in disapproval, miffed at himself at being unable to attend to this chore earlier when the sun was at its peak. But he had been caught off guard attending to other matters that had cropped up unexpectedly. So he had to make due with what he had on hand and quickly lit a gas lamp for himself to hold while he continued his task.

The pale butler was so absorbed in his task, occasionally pausing to remove a well maintained or dog-eared volume to run his feather duster over, that he was unable to sense his master's moving silently towards him until it was too late. One minute he was standing on the tip of his toes to put a particularly fat tome into its' rightful place on the shelf and the next he suddenly felt the presence of his master so closely behind him.

They weren't quite touching, but he could distinctively feel the heat radiating from the lanky, toned body behind him. His master, in fact, was so close that if the butler had inhaled too deeply or even sat rightfully back down on his feet instead of standing on tiptoe, then his back and derriere would be firmly and intimately pressed against his master's front. So he stilled, feather dusting hand seeking purchase against one of the shelves, head tilted to the side, his brow raised askance as he waited patiently for his master to request something of his person. Whether it was difficult or simple, he wouldn't be one hell of a butler if he couldn't rise to the occasion. But that still didn't mean he wasn't floored by his Master's next words.

"You smell sweet Sebastian. Have you been baking recently?" The question tickled the demon butler's ear as his employer's lips teasingly brushed against the outer shell of his left ear.

It took a while for the demon butler to process what his master asked of him because his master hadn't stopped at just breathing the request into his ear. Oh no, he buried his slim pale nose against the nape of his neck after he was finished. He took a healthy sniff, luxuriating in the scent that had drawn the young demon Lord from his wingback chair and across his expansive office. Apparently by the way his master tried to stifle a moan, he smelled heavenly.

"I haven't Bocchan. Besides, you would ruin your dinner if that was the case," Sebastian chided lightly, trying to bring some normalcy back into the awkward situation.

So far his master, Ciel Phantomhive, had handled the transition from human to demon pretty well. Sure he had been reluctant to say goodbye to his old acquaintances and the childhood home that he had grown up in, but the benefits of starting over far outweighed the negatives. Especially since he was no longer under the tight leash of the faux Queen of England or forced to wed his hyperactive cousin/fiancée Elizabeth, who both believed him dead.

However, Mey-Rin, Baldroy and Finnian had become so loyally dedicated to the young master that upon discovering that their master had disappeared mysteriously, supposedly dead, they had hunted him down with Tanaka at the helm. It took a few years and a lot of misleads but when they found a taller, more mature version of their young master in a comfy, little, stately manor in New York, they swore their fealty towards him.

It hardly even deterred them much when Ciel brazenly dared to show his demonic new side. They had given pause, but nearly tripped over themselves to be the first to praise him for taking them in even with their sordid past. They even tried to give him back the money they had inherited after his supposed 'passing', declaring his presence more valuable to them than even their weight in gold. So his old staff remained. He had even garnered a new employee in the form of Snake, a demon they had rescued from a corrupt circus, so everything on the home front was nearly perfect.

Ciel had worked his way from the ground up, rebuilding himself with a little seed money he had stashed away for a rainy day. His business savvy that he had garnered from Sebastian and Tanaka drilling lessons into him, plus his natural talent that he inherited from his late father Vincent, helped as well. It also didn't hurt that he had one hell of a butler that had a silver tongue on him that could coax privileged information about the stock market in New York City so that he could invest wisely.

It had been six years of almost smooth sailing. Of everything and everyone acting normally and accepting their new situation. But it was all too clear that something was wrong because his Master Ciel had never been the touchy feely kind. He valued his personal space too much, giving into scowling and somewhat snarky retorts at those like Prince Soma, Alois and Elizabeth who crowded and tried to hug him. So when he stood so close to Sebastian now, his arms moving to wrap around the demon butlers tapered waist as if in a lovers' embrace, he didn't know how to conduct himself.

His blackened heart hammered quickly in his chest despite himself because of the charged tension that now surrounded them. If the bookcase wasn't in front of him he would have distanced himself before the young man could have even unconsciously thought to curl his arms around him, trapping him further. But when he was between a rock and a hard place with a demon that literally could make him do anything depending on his whim, all he could really do was lick his lips in anticipation and wait.

"New shampoo? Cologne? You smell too delicious for it not to be something different. It makes my mouth water just thinking about it," Ciel insisted, leaning forward, pressing himself firmly against his butler's backside. His right hand unfurled itself from around Sebastian's waist to grab at the older demon's hair, yanking it harshly back so that he could run his fanged teeth along the snow-white column of Sebastian's throat. It was almost as if he was pondering on taking a big, juicy bite, his raspberry scone with clotted crème barely satiating his hunger for long. Not since Sebastian had walked in with his tantalizing aroma, teasing his senses until he couldn't stand it anymore.

"B… Bocchan," Sebastian spoke out hesitantly, breath hitching slightly at the teasing feel of fanged teeth running along his jugular. He knew he should be moving. He should quickly turn the situation around, whip around and press his master into the bookcase in hopes that Ciel would somehow snap out of it. Maybe smack his head against the bookshelf so he would definitely snap out of it. But even though his head knew what to do, his body wasn't listening.

He was suddenly purring. He didn't realize he could make such a noise from deep within his throat. But apparently he could when his Master nipped and nuzzled at his neck. If that wasn't bad enough his treacherous body seemed to tremble and grind seductively back against the hardening object pressed against his derrière. It felt wrong on so many levels, but his body seemed to instinctively need this all of a sudden.

It no longer became that he was being forced to be held. He wanted to be held because it was the only thing keeping him in control. He needed his Master close, invading his space and driving him mad because without him close by he might burn up from the inside out. He was burning with a slow intensity that was getting hotter and hotter until he let out a whimpering moan that he barely managed to choke back.

His pale cheeks and limbs were suddenly flushed with the heat that raged deep within his body. He needed something, someone to cool him down. He needed his Master, his Ciel, to be balm to soothe his troubled mind and take his mind off the roaring inferno under his skin.

"Bo…Bocchan, I'm too hot. Make it stop. Cool me off," he began to babble, nearly losing grip of his gas lamp. He didn't like this feeling of not being in control. If he could growl at it, snap at it, even threaten this feeling he would, but all he could do was put his trust in the young human who had managed to weasel his way into his life.

"What do you need me to do Sebastian?"

"Put me out, cool me down," Sebastian. A sigh falling from his lips as fingers clumsily reached in front of him to unbutton his neatly tucked shirt. "More, more," he insisted even as his naked, exposed chest, met the cool air. He suddenly felt like he couldn't breathe. Everything was too tight, too hot, too everything.

Ciel nipped the flesh right between Sebastian's shoulder blades, right where shoulder and neck met. A growl unfurled deep within his throat to show his displeasure until the trembling, gibbering butler stilled, his breath hitching. Ciel pulled away from the butler, forcing Sebastian to turn so he could calmly and carefully peeled away Sebastian's shirt with his cool hands. His face was stoic, even though his eyes were illuminated a demonic pink, his wings triggering from his back to form a protective, feathery halo around them as soon as Sebastian began to panic.

The demon butler looked in wonder, fascinated by the blood red feathers that became a muddier maroon color along the bottom. He had never seen them in full display before, not even when Ciel had let his demonic energy be known to Sebastian the first day. They were so beautiful and soothing that he found himself taking one deep, calming breath after another. His gaze locked on Ciel's stoic and mature face as he ran his cool hands along his neck before cupping his cheek, instinctively knowing what to do to cool him down.

"I should go," Sebastian said after a few minutes of this quiet ministration.

He felt embarrassed by the mere fact that he had lost control in front of his Master. It was deplorable. If it had been the small human Ciel that he had first contracted with instead of this tall, solemn nineteen-year-old demon than he would have handled the situation better. But if he was honest with himself Ciel hadn't been the only one who commented about his scent. The bumbling pervert Grell had prattled on and on about how heavenly his scent was and tried and failed to attack him. Even Snake told him while they were washing dishes that afternoon that Oscar thought he smelled particularly nice today.

Yet, what was it about his scent that could have triggered such an uncharacteristic and animalistic response in the usually cool-headed businessman? He didn't wear cologne and he hadn't changed his brand of cleaning products, so what could it… Damn.

"I really am sorry Bocchan, but as you can see I am fine now. Plus if you do not allow me to depart I will be unable to prepare your favorite dessert," Sebastian began briskly, all business now. He quickly buttoned his now wrinkled shirt, tucking the shirttails inside his shirt before bowing deeply from the waist in apology. He looked wearily at his Master, waiting for the animalistic creature to give his silent nod of approval before he swiftly left the room.

His brow beaded with sweat as he cursed himself for not realizing that his scent was clearly one sign of his heat triggering. He had taken it for granted that someone like Ciel would be unaffected because he didn't seemed perturbed when he had been human and his butler had gone into heat like he did every century. Sebastian usually rode it out if he was with a Master or Mistress, excusing himself for a week or two depending on the severity. But surrounded in a household that had two demons too many in his proximity, he doubted bunkering down in his room would help him ride out the storm.

Not if his heat had triggered prematurely, possibly in response to another demon in the house being in heat. He had to leave; he had to leave now, because if Ciel reacted like that over just his body oozing out pheromones, he didn't want to know how he'd react to the other symptoms sure to blossom in rapid succession.