Title: Once Every Full Moon

Author: Shaariin13

Words: 1,362 (details and A/Ns exclusive)

Fandom: Kateikyoushi! Hitman Reborn

Characters/Pairings: Yamamoto/Gokudera (8059)

Rating: M for homosexuality and smut; also, first time writing a(n incomplete) lemon

Warnings: first time writing anything explicitly sexual in nature; beware of fail unfinished smut

Summary: Supernatural!AU. In a world where demons as familiars are common, if not normal, the changing phases of the moon prove to be a little difficult to an incubus. Master!80XFamiliar!59. Rated M for homosexuality and smut. First lemon I've ever written!

A/N: My first lemon! Gotta post this quick 'cause I need to sleep and my dad's threatening my laptop!

Disclaimer: I do not own Gokudera Hayato nor Yamamoto Takeshi.


Once Every Full Moon

A crash sounded in the moonlit study.

"Hayato, are you alright?" Yamamoto asked, rising from his seat behind the ancient oak desk. The silver-haired incubus kneeling on the floor looked up at his master.

"Ah, Master Takeshi, I apologize for the inconvenience," he muttered as he rose somewhat stiffly, his whip-like tail swishing uncomfortably, broken teacup safely in his hands and the front of his pants tented. Yamamoto's gaze zeroed in on the last.

"Hayato, uhm, is… something the matter?" he asked, unable to remove his gaze from his familiar's slacks-covered crotch.

Gokudera subtly adjusted to hide his – both literally and figuratively – growing discomfort (for a demon who was supposed to revel in sex and seduction, he's frightfully prude).

"Well, Master," Gokudera started, faltering. "It is a matter of a demon's biology. I assume that you are aware that the moon is deeply associated to us fallen. The different phases of the moon affect certain aspects of a demon's existence, and, well our sexuality is one example."

Yamamoto only looked at his companion confusedly. "What? I don't –"

"It means, Master," Gokudera cut him off awkwardly, "that during full moons, demons experience an onslaught of what you consider the demon equivalent of human hormones. We are stirred sexually by the rays of moonlight."

"So, you mean the full moon makes you horny?" Yamamoto asked, mouth agape, but a thoughtful glint was present in his eye.

"Er, well, crudely speaking, yes," Gokudera confirmed, grimacing. "Even I do not understand it fully, myself, but demons, especially to those of my kind from the Lust Sect, must engage in sexual acts for the whole week that the full moon shines at night to survive."

"But, Hayato," the raven haired heir called as he went around his table to sit on top of it and speak more comfortably with his moonlit familiar. "You have been with me since I was a wee child, considering that your female sire was my mother's familiar. Why is it that only now-" He trailed, opting to motion his hand to the other in supplication.

"It only usually starts when a demon reaches a certain age. To demons from the other sects, it starts around sixteen to eighteen years of age, or four to six years of serving as a human's familiar. Succubae and incubi, though, first experience it at age twelve to thirteen or their first full moon as familiars."

" 'First full moon as familiars'?" Yamamoto echoed, surprised. "Then you've been undergoing this torture for nearly eight years now, as you became my familiar on your tenth year. How'd you last this long? You never leave the mansion without me, nor have I ever seen or heard of you having partners before."

Gokudera's cheeks pinked at this inquiry. "I... s-satisfy myself, Master." His embarrassment caused his voice to crack. "As long as it is something that is s-sexual in nature, I will get by.'"

"You mean you touch yourself at night – every night – for the full week that the moon is full?"

The silver-haired, silver-tailed incubi's blush deepened when he noticed the change in the mood and tone of his master. "Y-Yes, Master Takeshi."

"I have always wondered, Hayato," Yamamoto said as he rose from his perch on the desk and approached his familiar, "why you are not like the usual incubi that we have encountered. So prudish, upright and shy: the total opposite of those of your kind who are typically lewd, shameless in their natures and desires."

Tanned, calloused fingers ghosted over a pale cheek, imitating a butterfly's feet barely landing on a flower's petals. A shiver rocked the paler being to his core at the soft touch, his instincts threatening to overcome his self-control.

"Master Takeshi, please refrain from committing a repeat of that," Gokudera whispered as he took a step back, already missing the warmth of those fingers on his skin. He could still feel the faint tingles on his cheek.

"A repeat of what?" Yamamoto asked, taking a step forward, following the other. Their faces were so close, they shared the same air. Yamamoto could smell the intoxicating scent of Gokudera's breath, the natural aphrodisiacs overloading his senses.

Gokudera was hardly faring any better. In fact, he had it worse. Being an incubus whose nature was that of lust and wantonness, and having inhibiting himself from his desires for years, were taking their toll on him. He gave in and grazed his pearl lips to his master's peach mouth.

Yamamoto moaned, the amatory properties of Gokudera's saliva fuelling the love and lust he had always had for his familiar. Long fingers threaded to moonlit strands. His fantasies had not done his familiar justice.

All the servant could do was grip the other's biceps as his tuft-ended tail trailed sensually up his master's thigh before wrapping snugly around it.

"Hayato," Yamamoto breathed into said incubus' ear, pushing the smaller onto the desk, displacing papers, pens and books.

"M-Master Takeshi," came the answer, hands wandering, loosening jackets and buttons, skin touching skin.

"Just Takeshi, my beautiful Hayato," Yamamoto's lips traveled downwards to a strong, yet delicate jaw. "Just Takeshi."

"Takeshi…" the silver familiar complied. "I… I love you…"

Yamamoto stiffened, his heart swelling. The smaller man had always been out of arm's reach, so close yet so far. And now... now he was Yamamoto's completely.

The master kissed his familiar. "I love you, too, Hayato. I always had."

Yamamoto's hands drifted to Gokudera's chest, fingers grazing peaked pink nipples. The latter arched beautifully under gifted hands. The former's lips followed the trails left by his hands and fingers.

One nipple was caught between two coral lips, sucked and laved and breathed on while it's twin was twisted, pinched and played on by skilled fingers. Lips and hands changed positions and went back to work.

When he was thoroughly satisfied, Yamamoto turned his attentions to his beloved's lower half. He took Gokudera's pride in hand, stroking long and hard. His fingers traced the big vein on the underside, then focused on the head and the slit. His tongue followed suit, before taking the whole thing in his mouth.

Yamamoto was surprised when his free hand drifted lower to Gokudera's hole and discovered it was thoroughly wet and loosened. He made a low, guttural noise which sent shocks of pleasure up the familiar's spine.

"Self-lubricating," Gokudera breathlessly explained to Yamamoto's unvoiced question. "An incubus' body was made to please, whether a woman or a man."

Yamamoto smiled around Gokudera's cock. He slid his fingers inside Gokudera, reaching far inside in search of that spot that will make his lover writhe in pleasure. A few minutes more and—

"Ah!"

Bingo.

Yamamoto continued with his ministrations, bobbing his head up and down in tune with his fingers going in and out.

"T-Takeshi," Gokudera panted, hands clutching his master's shoulders, mussing his hair, touching everywhere. "T-Take me."

It was as if Gokudera had spoken the magic words. Yamamoto released his cock with a wet pop before flipping the silverette onto his stomach, shoulders low and hips high.

"Hayato, stretch your arms in front of you, like a cat," the raven instructed. "I'll reach deeper that way."

His incubus followed.

"Ready?" was the prompt. A nod and a whine was the reply.

Yamamoto's stiff rod penetrated smoothly, deep and sure from different angles, looking for Gokudera's prostate. A sharp gasp informed him he hit the right spot and he was determined to keep on hitting it.

Gokudera's lewd noises encouraged his lover more and he was pounded thoroughly into the desk. His cock was in one hand, pumped and stroked until he thought he would faint from pleasure (but being an incubus, he had high endurance and resilience levels, so the thought was for naught).

Yamamoto gradually changed their positions atop the desk until he was properly seated with Gokudera on his lap. He would lift the silver creature then drop him onto his shaft, the pull of gravity making for deep penetration.

Well into the night they succumbed to the beckoning of the moon's luscious call.

Suffice it to say that Gokudera never had a problem with full moons after that.

02.23.13 - Just updated the details and fixed the summary.