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The snapping of boots echo in an empty chamber, a lonely throne residing in the middle. Lumine paces around with both hands resting on her hips.
“Aether...Aether...hmph…”
Contemplation, muttering out her brother’s name. Her forehead wrinkles as her pacing fastens, steps and voice booming in the silent room.
“I can’t...but…tch”
Clicking her tongue she slouches down on the throne, crossing her arms and tapping one foot against the cold stone beneath her.
“I know I told him we’d reunite later...”
But she was starting to regret it. Multiple times her legs had forced her out of the Abyss and into the shadows of Teyvat, watching ever closely as her Aether went on with his daily tasks. Often times he’d be alone in out of the way places, staring blankly at the sky or wild life, completely unaware of Lumine’s presence near him. The places he chose really were out of the way, so inconspicuous that it would take a keen eye to find them, and great effort to even reach those locations.
Because of this he left himself too defenseless. It was so tempting for Lumine to thrust her hands out and push him down, restraining and dragging him to the Abyss.
The amount of times Lumine would run off and lurk around Aether spiked. Focusing on her tasks became increasingly difficult. A whole month went by where no progress was made, only stalking Aether and longingly gazing at him from his blind spots.
She always had feelings for him, and their separation drove it to an unhealthy point. The things she wanted to do with him made her lips twist with perversion, the glint in her eyes making her seem somewhat evil, her unannounced chuckles creeping out any nearby.
“Aether…”
Her hands trail over her arms, slowly dropping down until they hover over her nether region. She’s about to indulge herself, but she pulls her hands away and jumps off her seat. Even if she satisfied herself she wouldn’t be able to anchor herself to her mission, it’d only worsen the ever lasting hunger. Continuing on like she has is not an option. She needs to quench her thirst.
Her lips stretch out as far as possible, a befitting smile for one who dwells in darkness. Bolting towards the door she summons a creature.
“Herald! Where’s Aether?”
“Your brother is currently in Mondstadt, princess.”
“Alone?”
The Abyss Herald wishes answering was optional.
“...Yes.”
She snickers, making the Herald uncomfortable and dismissing itself. Like previous days and nights Lumine makes her way to her brother, this time intent on doing more than just looking. She wouldn’t be using her fingers anymore.
------
The never waning and waxing moon takes the sun’s position in the sky, over looking all nightly activity down below on the earth. A lone boy walks among the streets of Mondstadt, lost in thought as he kicks one foot over the other.
‘Hope Lumine is healthy.’
With the Abyss she may be, she’s still his sister. He can’t help but worry over her wellbeing, even if she might be ruining the wellbeing of others via her actions.
A strained exhale through the nose.
“You could have just told me the truth yourself. We could’ve reunited by now...”
Aether expresses his thoughts out loud, something he’d done for a huge chunk of his life. The difference now being Lumine’s absence in listening to his musings. He didn’t want to share his surface and deep thoughts with others, only with her.
With a sigh he walks over to a corner of the city and sits down on a bench, a singular street lamp looming over him. He cranes his head upwards and loses himself in the starry night sky, unaware of the sneaking presence behind him. Precious memories of his travels with Lumine make him smile gently.
“I’ll do something nice for her when we reunite.”
“Is that so?”
Familiarity settles in. Never could he forget the owner of that voice, even if it’s traced with unknown nowadays.
“Lumine!”
He moves to look behind, but a hand pushes his head downwards and keeps him there, an arm encircling his neck. Her head rests next to his, far too close than one should be, but it’s been so long since he last saw her in that domain that he doesn’t care much.
“Aether, I missed you so much.”
Solemnly Lumine whispers into his ear, Aether reciprocating the same emotion.
“I missed you too.”
He clasps one hand around her arm that’s nestled around his neck. Although gloved her warmth that he’s come to long for filters through, but not in the way Lumine longs for.
Minutes pass as she holds Aether in place from behind the bench, now leaning her head into his. It’s only now that he realizes how odd her hold on him is, her hand still firm on the top of his head and her arm around him having an air of possessiveness.
Gently she ruffles his hair, and too enthusiastically she nuzzles his cheek with her own. It’s embarrassing and odd for sure, considering this is the first time he’s received such affection from her, but he won’t try to end it.
He has no idea how badly Lumine wants to pin him down as she touches him.
“Why are you here?”
Aether speaks with tender care and wishfulness, thinking to himself that she’s come to him to reunite.
“So I can bring you home.”
At her words he excitedly turns his head to look at her, but is immediately reminded of their close contact. If he shifts by any amount their lips would brush up against each other. Lumine grins as he shyly turns away.
“Then you’ll leave the Abyss?”
A small giggle rises from her at Aether’s question. She lets go of him, laying one hand on his shoulder. He watches her walk in front of him, moonlight casting her shadow over him and engulfing him. He looks at her features, a crooked smile with dark golden eyes that glare at him.
“Lumine?”
She doesn’t answer and brings her face down to his, resting their foreheads together and placing her remaining hand on his shoulder, gripping tightly.
“No Aether. I said I’m bringing you home.”
Her hot breath lands on his lips, almost immediately followed by her lips landing on his. During their kiss, a strange and foreign sensation seeps into him. There under the moon, in the middle of the night, Lumine kisses Aether.
A million thoughts run through his mind, but before he can get a grasp on them a portal opens behind them. Lumine uses Aether’s shock to push him through the opening, arriving at her room in the Abyss instantly.
He barrels onto the cold ground and is picked up by his arms, thrown on the bed in a matter of seconds. Like lightning Lumine puts herself above him, staring him down and smiling teasingly.
“You said you’d do something nice for me? Then be a good brother and stay still for me.”
Hairs stand at ends from her voice. Cool and supple lips graze his, a nice feeling welling up at the point of contact. He tries to move and escape, but his body refuses.
“What did you do?”
“That doesn’t matter. Kiss me back instead.”
Body moving on its own, he follows her orders and his lips begin to move in tangent with hers. He squeezes his eyes shut not wanting to look at Lumine’s face as they kiss, but all it does is heighten the wrongful pleasantness of it.
“Put your hands on me.”
Control long taken from him he obediently moves to Lumine’s demands, resting his hands on her hips. She chuckles to herself, amused at the location he chose to touch.
“You chose there?”
The red tint on his cheeks spreads to the tip of his ears. She accelerates their intimacy, her tongue breaching his mouth and swirling around with his. Her gentles kisses become rougher, biting his bottom lip, licking the edges of his mouth, breathing in his air which drives her desires up the wall. Moans start to erupt from the two, Aether stifling his while Lumine lets them out of her system.
“Lumine, stop.”
He rasps out trying to catch up on due breath, but she ignores his tantalizing plea. Hands roam around his body, basking in his exposed skin and toned muscles.
Her tongue persists on his, imitating what lovers would do when they seek the other out. With each kiss Lumine takes away one article of clothing from Aether, leaving him fully exposed to her. She keeps herself dressed, causing the blush on Aether to explode and making him look away in shame. She doesn’t let him though, cupping his cheeks with her hand and keeping their lips over the other.
Another giggle comes from her. She pulls away and sets herself down next to him, massaging his legs with hers. Resting one hand on his chest, she trails it downwards until a mere gust of wind would blow it onto his stiffness.
“You-we can’t.”
“Hey, Aether. If I’m correct we’ll be each other’s firsts right? I’m sorry if I don’t do it too well~”
He watches her mouth twist devilishly as a sinking feeling spirals in his stomach. Yet his member twitches in the cold air, waiting for someone to soothe it.
“Answer me.”
“Y-yes.”
“Don’t look away.”
Again her words command him. Unable to resist whatever ploy she used his eyes fixate on her face. Then the frigid air that brushes against his dick is replaced with warmth and softness.
“Ahh!”
The sudden change in temperature elicits a yelp from him.
“Hmm? I barely touched you and you made that kind of reaction.”
Teasing words float into his ears. More shame is brought out as he huffs in front of her face.
Soon her hand begins to stroke. A shiver runs its course on Aether’s spine with each movement of Lumine’s fingers. She takes her time experimenting, tracing lines with two fingers, focusing her stroking in one place, rubbing her palm on his tip, burning the winces and moans her brother makes into her memories.
“So Aether, how does your sister’s hand feel? Good?”
He hates to admit it, but the way Lumine handles him is greater than when he does it himself.
“It...feels really good.”
He realizes that she didn’t command him to answer. He willingly chose to enjoy her.
“Ahh~I’m so glad you like it.”
Her stroking hastens. She covers every inch of him, her aggressive tugs coaxing him to climax. Loud gasps escape from him as he twitches in Lumine’s hold.
“Lumine!”
She reacts to the jerk his hips make, placing her hand over his tip as he gushes into it, staining her clean skin with his seed. He gulps in air as she brings her sullied hand to her lips, dragging her tongue over her fingers and replacing Aether’s cum with her saliva.
Giving him no time to rest she places her hand back on his still erect length. Her fast rhythm returns without warning and Aether melts into her touch, his breath hitching as he lets his voice out.
“Wait-”
Lumine uses the short instance of Aether’s mouth opening to stick her tongue in, shutting him up by making out with him. Her intense jerking doesn’t falter in the slightest, the vibrations of his moans resonating in her mouth, his dick reacting to all of her glides.
It only takes a handful of minutes for him to climax once more. The two releases and the constant kissing from Lumine leave Aether breathless, his body pulsating with increasing heat at the sight of his sister devouring his seed that isn’t meant for her.
Not even an hour had passed since Aether was sitting outside in the frigid night, now surrounded by Lumine’s warmth.
And surrounded in her warmth he’ll be.
She uses his dazed state to her advantage and grabs his wrists, leading them to her now wet underwear and wordlessly telling him to remove them. Once removed, she lifts herself over Aether’s manhood, positioning him right outside her pool of moisture, grinding against him for minutes and presenting herself with the same intoxicating pleasure she was presenting him.
“Not gonna complain this time?”
Playfully and somewhat erotically she questions.
“Just do whatever you want.”
Defeatedly he whines, with fresh pleasure draping over his voice. One of his arms moves to shield his eyes from what’s to come, but she will have none of it.
“Stop that. You’re going to watch me as I put you inside me.”
His arm falls away, eyes glimmering with signs of wanting more of the sweet rapture that Lumine endows him with.
Her sinister grin widens at the look he gives her. Ready to finally satiate her perpetual desire for Aether, she brings herself down slowly, feeling every inch of him pry her open.
Clenching her teeth, she groans at the incredible tides of pain and pleasure that wash into her.
Lumine waits no more and proceeds to move, shaking her hips slowly at first and extensively listening to every sound that rises out of both their bodies.
Audible squelches resound thanks to Aether’s already liquid drenched dick thrusting into her. The more Lumine raises and drops her hips the more their love making wetness leaks out of them. Each sway of her hips makes way for a new sensation that escalates the need to sway more roughly and greatly.
“Mmm! Lu-Lu-”
Rolling her name off his tongue is impossible, his voice cracking from the euphoria that overloads his senses.
“Ngh...hmm! Aether!”
Nearing her first orgasm of their intercourse, she slams down with enough force that causes her to gush out her nectar. The event is heavenly and unholy, the tremors that pulse from her pussy echoing around her curves.
More, she wants-needs more. More of that trashing around that sends her over the brink of sanity. In addition, Aether has yet to finish inside her, and she can’t allow that to not happen.
She props up and pulls down harshly. Aether gasps.
“Lumine! I really-”
As he stutters out a futile request to stop, Lumine repeats the same action again, efficiently quietening down his pleas, but not his moans.
Her thigh muscles get to work and she rides Aether. So much ecstasy courses through the two. Minutes pass with him trying his best to stutter out a single sentence. Lumine wholeheartedly enjoys the way he struggles as little by little she feeds her cravings.
“I-really can’t anymore!”
Miraculously he manages to protest through her scorching rocking, her walls gripping maddeningly around his cock urging him to cum inside her.
“You don’t get to decide that. I know you can cum again.”
So viciously she speaks. Her sinking into him roughens up, her cries from the shocks resonating across her room. Tingles tantalize her body to keep moving, every inch of Aether stabbing into her cave. With each thrust made the sooner he arrives at orgasming, and she knows full well that he’s nearing.
Then with a whimper from him as a warning, Lumine feels an ardent heat fill her insides. It’s more than she imagined. The way it just feels inside her as his cock spills cum into her pussy is too much for her to handle. And her own voice at the back of her head moves to the front, commanding her to move forwards.
“Lumine!? Seriously, I can’t!”
“You’ll keep cumming inside me until I tell you to stop!”
A tiny bit of his seed leaks out of her. She needs to get it back.
Every time he disappears and reappears into her a star shows up in Lumine’s view. Each new star comes with the joyful fact of more cum being pumped into her.
A high pitched sob from Aether, more of him inside Lumine.
Her eyes close and her mouth hangs open, mutters and laughs escaping as she waits for him to deposit every drop inside her before moving again.
Beads of sweat slide down their bodies, Lumine finally discarding her clothes and being one with Aether. Her hands constantly change position, sometimes gripping his shoulders or her own knees, or pushing down on his chest for support, or her fingers intertwining with his as their palms make contact.
Foam forms at their connection, so much of their cum lathers them, the sloshing and squelching making any that hear it want to cover their ears from how absurd it was.
“Aether! Again! Again! Inside me! Don’t stop!”
She begs, she cries, she gags for it. He can only do as she wills. More warmth is sent from his insides to her insides.
“Lumine...please…”
Tears adorn the edges of both their eyes.
“Please...what? Please what Aether...”
“No more…nothing will come out no more...”
She shoves her hips down all the way, all of Aether’s cum following along, a howl emerging from them.
Bad. There’s still room inside of her for it to move around. She needs to be at max capacity before she stops for the day.
“Liar...we’re not stopping until I know you’re empty.”
She sets a rhythm that allows the both of them reach their peak again and again. Aether can only watch hazily as Lumine continues to jump on him with the most depraved look in the world.
Hours fly by, the time of day unknown in the darkness of Lumine’s room. She made sure to wring out every last drop from Aether, and even when she knew he couldn’t produce anymore she insisted on continuing. Her cunt was positively overwhelmed with his seed, and she wouldn’t have it any other way.
As she proceeds to pull herself up and slam down, her legs give out and she comes crashing down onto Aether. Swallowing hard she wraps herself around him, still making sure to stay connected. She shakily brings her wet lips to his ear, whispering.
“Aether, we’ll continue tomorrow.”
“Yes Lumine.”
Lumine smiles at Aether’s obedience. Her hips might have given out, but she could still gain pleasure from kissing him. She turns his head towards her, gazing into his eyes that gaze back at her with the same lust. And she closes the gap, imitating the sex she had with him, now with their mouths.