Thread by @captainhoothoot

#sakuatsu #skts #NSFWSktsWeek2023 @sktsweek 

Day 04: Crime | nsfw | Angel Atsumu x Demon Sakusa AU

Loving you was a crime. I was a criminal, and you were guilty. 

Atsumu had never felt so at peace with himself, and where he was.

Situated atop strong, sturdy thighs, his thin, white garments shredded and slipping off his bare shoulders, his eyelids drooped as he planted himself down firmly, until the back of his thighs flushed against another's.

He let out a quiet sigh.

Drool slipping down his chin at the lean, slender digits tightening around his throat, applying the faintest pressure against the sides of his nape with calloused fingers lined with sharp, inky black claws,

the thrill of having them pressed precariously close to his artery, had Atsumu trembling in content. 

Even then, he trusted everything that was given to him.

Body forced to confirm and fit and a long girth Atsumu dared not think twice about, he welcomed the darkness ebbing away at the corners of his vision, and his lungs that ached, the longer his breath was robbed of him; his speech stifled.

"Sweetheart, how are you feeling?" 

A smooth, velvety, soft voice murmured lowly, his breath hot, ghosting the shell of his ear. 

Atsumu didn't have any words to explain the overwhelming tidal wave of emotions running through his body.

Of tumbling headfirst into an abyss. Of giving in to his heartfelt desires. Of letting go of his reins, and allowing someone else to take control. 

Every inch of his body felt like live wire.

Blood surging through Atsumu's veins, forming a distant humming in his ears, a burn started to build in his chest the longer he was deprived of air. 

Atsumu shifted slightly, lips parting into a choked gasp when the cock nestled inside him nudged a sensitive bundle of nerves.

Whimpering at the sharp set of nails raking down his chest, tracing the outline of a bulge forming in his abdomen, there was only so much Atsumu could take, before cum splattered across his skin, at the pressure being applied on both his throat and belly.

Atsumu had never felt better- so full and content, even as his white, downy features greyed, falling onto the ground.

Scattering across his bare feet like ash, the whisper of warning that carried across in the wind was quiet, as compared to the low murmurs of praise in his ears.

“You've fallen, my child. It's not too late to seek repentance." went unheeded. 

"You're right where I wanted you, my love." was all Atsumu heard.

Craning his neck as best as he could to press a soft kiss to upturned lips, Atsumu took in a shuddering breath when the grip around his neck slackened and cupped his cheek with tenderness. 

"I'm all yours, Omi."

*

Heaven had never been a place Atsumu could call home.

Never quite living up to the expectations the elders had for him and the stringent rules and code of conduct angels had to adhere to,

his curiosity and thirst to quell his inquisitivity always got him into trouble as a young angel.

Despite numerous warnings and chiding from his brother, Osamu, that ‘nosiness’ of his didn't change even after years.

In a time and age where angels and demons were now allowed to coexist and roam freely in the living realm with humans, the last thing Atsumu expected during a visit down the human realm,

was a demon with devilishly good looks to come crashing down from the sky while he was out having a walk in the forest.

Outstretching his wings to break the creature's fall, Atsumu tucked his wings, and backed away instinctively once he deemed the demon was safe.

The soft groan of pain emitting from the creature piqued his curiosity. 

Atsumu had never seen a demon up close. 

Halting in his steps in hestitation and daring so much as to take a stride forward out of curiosity,

Atsumu glanced at the demon who looked more like a man, if not for the imposing spread of black wings and jet black horns crowned atop a mop of shiny curls, that were just as dark.

A creature of despair and the fallen, albeit the initial surge of apprehension running through Atsumu’s body when he caught sight of majestic wings lined with sleek, obsidian well oiled feathers and the strong, chiselled body littered with constellations of moles,

there was something undeniably interesting, charming and attractive about the creature lying before him.

Atsumu found himself itching to learn more about the creature.

He was standing by the demon’s side before he knew it.

Seeing how the fallen (quite literally) creature was seemingly unconscious, the angel couldn't help but let his curiosity get the better of him.

Just how powerful were those wings? Were they as soft and downy as his own? How would they feel to the touch?

More importantly, was he injured?

Outstretching a trembling hand to the base of broad, coal-black wings, Atsumu let out a squeak of terror when a clawed hand with inky swirls creeping all the way up to his forearms, wrapped dexterous fingers around his wrists in an iron grip.

Onyx eyes lined with long, dark eyelashes shot open, boring through his skull before a slow smirk grew on the creature's lips.

“You're a curious one aren't you, Angel?”

Atsumu’s blood froze.

It was like he had put his hand over a fire he should've never attempted to touch and come into contact with.

Even then, he couldn't fight the red hot blush seeping onto his cheeks at the naturally rich, velvety voice that sounded ever so pleasant to his ears.

It was a sonorous hymn that resounded through him and struck a chord from within.

“A-are ya hurt?” Atsumu cleared his throat, fighting the fluster that was threatening to turn him a beet red. 

The demon seemed surprised, blinking slowly, almost cat-like, before the haze in his eyes disappeared.

His gaze softened, lips curling into a small, amused smirk.

“I didn't fall from heaven. Not today at least, sweetheart, so no.”

Propping himself up with a wince, Atsumu reached out his other hand in reflex, to help out the demon.

"Were you hoping for a demon like me to get hurt as a form of retribution for the things I may have done?" 

Trembling slightly at the surprising warmth emitting from the latter’s palm, Atsumu swallowed the knot in his throat at the intensity blazing through the demon's eyes.

“Ya haven't done anything bad. At least not to me. Besides, yer hurt…” Atsumu's voice trailed off, staring inquisitively at the raven haired male who hadn’t looked away from him. 

"I'm Sakusa," the demon murmured, running a sharp claw against the insides of his wrist,

where his pulse could be heard at its strongest. 

Atsumu shifted uncomfortably, choosing to tend to the demon's wounds gingerly. Sakusa's gaze remained transfixed on him.

It sent his skin prickling.

"I'm Atsumu."

*

Atsumu knew that he was going against everything that he had been taught when it came to dealing with a demon, and how he should refrain from any form of contact with those from the other side.

He was well aware of how it was a costly crime to be helping an enemy of angels, but he couldn't help but try convincing himself that he was doing it out of goodwill.

Simply helping a wounded man, who had black, glossy wings with jet black feathers that draped down his back like ink, as opposed to the ivory white feathers of his own, that carried a sheen of irredescence under the setting sun.

Ignoring the flush staining his cheeks from being stared at with such intensity and rawness, it was new… But not unwelcome. 

If anything, it was flattering. 

"I… I should go, Sakusa."

The demon hummed almost sadly, shadows creeping up onto his sharp, sculptured features.

It was unfair how dashing he looked, pale skin gleaming hauntingly, the contrast striking against his jet black wings. 

"Must you? How can I thank you again for your goodwill, Atsumu?"

Atsumu knew he had to get away.

Not only to return back to heaven, but to figure out the emotions now pooling in his heart, tightening in his chest.

He averted his gaze and hesitated, biting his lower lip, oblivious to the fleeting hunger and want gleaming in obsidian orbs.

"Ya don't have to thank me," Atsumu paused, meeting the demon's gaze with uncertainty, "But I suppose… it doesn't hurt to meet here again."

The corners of Sakusa's lips quirked up into a small hedonistic smile.

"I'll see you soon, Atsumu."