A Noise in the Dark

A Noise in the Dark
The house always sounded different after midnight.
During the day it was full of ordinary noise; doors opening and closing, footsteps in the hallway, music drifting from someone's headphones, the television downstairs. But at night those sounds disappeared, leaving only the small creaks and sighs of an old house settling into itself.
Bella had grown up listening to them.
Tonight she lay awake beneath the soft glow of her bedside lamp, reading long after she should have been asleep. Rain clouds drifted across the moon outside, occasionally darkening the room before kissing her sheets with a pale, silvery glow.
Above her, Cass shifted on the top bunk.
Once.
Then again.
Then a third time.
Bella smiled to herself. Cass had never been good at staying still.
"You know," Bella said without looking up from her book, "normal people sleep at two in the morning."
There was a pause.
Then Cass's voice drifted down from above.
"Normal people are boring."
Bella rolled her eyes.
"Convenient definition."
"I thought so."
For a few moments silence returned.
Not uncomfortable silence. The kind that came naturally after years of sharing a room and knowing each other's habits so well that words often became unnecessary.
Then another shift from the top bunk. Another creak.
Bella lowered her book.
"Cass."
"Hm?" The reply was followed by a sharp exhale.
"What are you doing?"
Nothing. Then the soft brush of Bella’s book being closed on the bookmark.
The pause itself was suspicious. Bella knew her sister well enough to recognise when she was deciding whether to tell the truth.
Finally, Cass groaned.
"I was… I was trying to get off."
Bella blinked. She quietly placed her book under her pillow and tilted her head delicately to the side, listening eagerly.
"That's what this is about?"
"No."
Another pause.
"Mostly."
A laugh escaped Bella before she could stop it.
The dramatic suffering in Cass's voice made it impossible not to laugh.
"I'm serious."
"You sound ridiculous. It’s okay, I do it sometimes too – you know, you’ve seen! Remember before we had bunk beds?" Bella propped herself up on a slender elbow reliving the memories “I was thinking of it myself so I could get to sleep. We used to walk in on each other so often we just got used to doing it in front of each other, and dad was so worried about interrupting us and seeing something he didn’t want to that he let us lock the door.”
Cass shuffled uncomfortably and there was another awkward pause before she responded.
"It’s not that. I mean I am trying. It’s just… It’s not working. It’s frustrating."
Now Bella could picture the exact expression on her sister's face without even seeing it – annoyed, frustrated, slightly offended by circumstances beyond her control. Bella lingered on the expression in her mind for too long.
A moment later the mattress above shifted again, followed by the soft creak of the ladder. Cass descended carefully, one hand trailing along the wooden rail as she climbed down into the dim room.
Bella’s eyes darted to the sliding mirrored wardrobe doors on the opposite side of the room. The moonlight caught Cass’s features as she tiptoed down the ladder. She wore the same pyjamas she often slept in during warmer weather – a pale pink camisole and matching bikini-style panties – and somehow managed to look both sexy and irritated at the same time. Bella’s eyes never left the soft, tanned cheeks in the mirror as Cass hinged her body fully onto the ladder until the light scuff of soft skin on a wooden ladder signalled the point her view was obstructed.
Cass was a few steps down and reached one leg out long to find the floor in the dark. Her cami top was snagged on the corner of the bunk ladder and revealed the golden field of perfection that was her older sister’s tummy and lower ribs, but Bella’s eyes were firmly fixed between her sister’s legs – the outstretched leg bunching the panties up enough to give her a glimpse of the velvety soft skin and perfectly lined contour of a naturally hairless pussy. How was her sister so blessed when Bella herself had a tuft of light brown hair already?
Bella swallowed.
Cass reached the floor, washing her brazen skin in silver and bringing out the scatter of freckles across her nose and cheeks. Her hair was slightly tousled from sleep, falling untidily around her shoulders. Even half-awake, there was an unmistakable confidence about her, though tonight it was overshadowed by the restless frustration tightening her expression.
Bella watched her cross the room.
Even in near darkness she could see the restless energy radiating from her. Cass moved quickly, fingers tapping against her leg, jaw tight with irritation. She looked like someone trying very hard not to be bothered while obviously being bothered.
Even at her age, Cass projected confidence effortlessly. She walked through the world as though every room belonged to her. Friends gravitated toward her. Strangers remembered her. Even arguments seemed easier for her somehow.
Seeing her unsettled was unusual.
Which made Bella almost forget the thoughts running through her head looking at her sister’s body – distracted, oddly fascinated.
"It can't be that bad."
Cass sat heavily on the edge of Bella's bed.
"You don't understand."
"I don't?"
"No."
Bella sat up, forgetting she had elected to sleep shirtless in the humidity tonight. She had always been embarrassed by her prominent nipples and their rosy, pink hue. It had too often been visible through thin material, and she always had to buy thick woven shirts that felt heavy on her shoulders. Now that Bella’s shapely, round breasts elevated them further from her chest, it was a nightmare finding comfort in the hot months and the ability to sleep half naked was freeing.
Cass stared for a second, the pink and pale globes staring back like a mirror reflecting her own freckles, before Bella realised and pulled her sheets up. "Then explain."
Cass snapped out of it. For a second she looked genuinely annoyed with herself.
Then she glanced toward Bella's nightstand.
The look told Bella everything.
The request arrived before the words did.
A familiar look.
One Bella had seen countless times throughout her life.
The look Cass got whenever she wanted something.
"C'mon, Bells."
Bella laughed immediately.
"There it is."
"There what is?"
"The voice."
Cass frowned.
"What voice?"
"The one you use when you're trying to get your way."
"I don't have a voice."
"You absolutely have a voice."
Cass attempted to appear offended, but the performance lasted less than three seconds. Soon both sisters were smiling. The tension eased slightly.
Still, Cass’s gaze kept returning to Bella's nightstand. Bella noticed.
Of course she noticed. She always noticed everything when it came to Cass.
The truth was that she enjoyed these moments more than she admitted. Not the requests themselves, necessarily, but the feeling that came with them. Being included. Being trusted. Being the first person Cass turned toward when she needed something. Especially when it was something so intimate. Bella’s heart started to race at the thought.
Growing up, Bella had spent years trying to keep up with her older sister. Cass had always seemed fearless while Bella remained cautious. Cass started conversations with strangers. Bella listened. Cass made decisions immediately. Bella considered every possibility. Bella struggled to share her feelings or even talk about dating. Cass had been there. She knew what she wanted.
Some part of her admired that confidence.
Even after years of sharing a room and seeing all the flaws hidden beneath it.
Finally, Cass sighed.
"Can I borrow it? Dad’s asleep it won’t make a sound. I won’t take long. Please."
Bella looked toward the drawer beside her bed. Then back at her sister.
“Cass. I–.” Her sister cut her off before she could explain.
"Bells, I need this. Maybe you’ll know when you’re a bit older, but I need this." Cass shifted uncomfortably.
Bella sat up again, her bed sheet falling down her collarbone and catching on one nipple, while revealing the other. She went to speak again but Cass cut her off.
“If I don’t have an orgasm, I will be grumpy tomorrow and I have work in the afternoon. It’s so selfish!” Cass seemed flustered but her eyes were firmly fixed on Bella’s chest as a cloud passed the window. The moonlight poured in, revealing the firm nipples tugging at Cass’s top, sharing her frustration.
“Cass! It’s out of battery. I haven’t charged it. I’m sorry.”
Her pretty, freckled face fell into her palms. “No, no.” The room was silent.
“I’m sorry.” Bella whispered, then tucked her knees up to her chest and made herself small.
The rest of the sheets fell away as Bella sat, disappointing her older sister. Bella could feel an intense warmth radiating from between her legs now they were in the open. With her head by her knees, she recognised the delicate scent of her own arousal.
Cass wiped what Bella thought was a tear from her cheek, though she couldn’t be sure now the rain had returned and dappled the moonlight.
“Bells.” The confident tone had returned. She needed something and didn’t let Bella interrupt.
“You have to help me.”
“What? It’s out of…”
“No, not the toy. You. I need you to help.”
Bella was speechless. Her nipples firmly pressed into her thighs. Cass could read the curious hesitation on her little sister’s face.
“Bella it’s easy, trust me. I’ve done it before – I can tell you what to do. It will make me so happy.”
Bella couldn’t get words past the lump in her throat. She wanted to should a resounding yes, but all she mustered was a limp nod.
The relief was immediate.
Not dramatic. Not exaggerated. Just visible.
Cass's shoulders loosened.
The frustration softened around the edges.
For the first time all evening, she looked comfortable.
"Here," she murmured, and took Bella’s hands. “How do I normally start?”
Bella thought back to the times she had quietly watched her sister pleasure herself to climax. There were many memories to draw on. “You play with your nipples.”
“Exactly!” Cass planted an excited peck on her cheek and swivelled on the bed. In the same move she whipped her top off and tossed it to the foot of the mirror. She laid her head back down into Bella’s lap, forcing her knees down into a cross-legged position. As her ruffled orange hair brushed past Bella’s breasts it sent branches of static sparks straight down to her clitoris. “So?”
Bella shook her head to clear the doubt. They both wanted this. Bella reached down her sister’s body as far as her fingertips would travel. Once she was at the bellybutton, she traced her fingertips up the golden contours to reach the bottom of her ribcage. Bella took her own pleasure in the deliberate, slow movements, allowing her breasts to skip playfully around her sister’s jaw and shoulders.
Bella worked with calm precision, gradually easing the tension that had accumulated across Cass’s body. Firm, steady pressure traced along tight muscles she had been clenching trying to reach climax, and with each pass her posture seemed to soften a little more. The room was warm and quiet, filled with the rhythmic beating of the light rain outside.
Bella found herself paying attention to sensations she normally ignored – the pleasant heaviness settling into her limbs, the slow rhythm of her breathing. She was completely absorbed in her work, so much that she didn’t realise she had worked herself all the way up to her big sister’s breasts.
Her dainty hands passed over them, revealing the tan lines like two smooth sculptures emerging beneath her gentle touch. Cass’s nipples flicked up as the last of Bella’s fingers trailed off them, eliciting a sharp exhale.
Bella applied her touch to their curved forms, refined with patient attention to every curve and every surface. Her fingertips reached out and found Cass’s nipples again and she gently twisted them as moonlight retraced Bella’s touch.
Bella’s fingers danced at the peak of her sister’s chest for a few minutes that felt like hours – teasing, tracing, circling, tapping, brushing. The excitement building in her was impossible to hide; she was already imagining how the night would unfold.
"You look gorgeous."
Cass looked up, her flushed, red cheeks hidden by the night.
"I feel much better."
"You haven't even had an orgasm yet."
"I know. That's the amazing part."
Bella giggled.
Cass grinned. The mood in the room had shifted completely.
“I think I’m ready.”
“To teach me?”
“To cum.” Another grin.
Cass twisted up onto her knees on the bed athletically, the top of her bed missing the slats under her mattress by millimetres.
The grin never left her face as first her right thumb, then the left, tucked themselves under her panties at the waist. Cass moved with purpose as she slid them down her inviting thighs. They were already a little bunched up from the squirming and movement, a tight fit that turned the process into a tease for Bella. First the left would slide down a little, then the right. The middle stuck for a moment until Cass reached a finger and pushed it down at the middle before a thin line of clear fluid bridged the gap.
They slid down to her knees and Cass’s grin widened. She leapt onto her back with her legs up in the air, panties still bunched above her knee. They came all the way off as Cass extended her legs, keeping them together.
Bella gasped at the sight.
This was her big sister. The one she looked up to with equal parts pride and envy. Her pussy was perfect, even more perfect than she remembered. The slightest faint of tiny, blonde hairs accented the velvety, lemonade-pink lips.
Cass let out a long sigh as she parted her legs, her labia revealing their secrets like the petals of blooming flower on a dewy morning.
“Touch her. Lick her.”
Cass threw her head back and traced her fingertips over her chest.
Bella shuffled her knees under her and leaned forward nervously. This close she could smell the light, sweet musk that had filled the room before. She hadn’t experienced it this strongly, though, and her head span. She smelled just like her sister.
Bella gently touched her sister’s lips. She ran her fingers along the inside, lightly stroking the sensitive skin and exploring the different textures. It felt familiar, and this emboldened Bella. Lick it. She knew exactly what her sister needed; she had seen videos. This was no longer a lesson, but practise.
Bella let the tip of her tongue glide down the crease of Cass’s thigh, doing a loop around her sister’s waiting pussy. She could feel the throbbing as she passed her clitoris and was excited to give it the attention it needed. But for now, savour the moment.
The tip of her tongue stopped at the bottom, where a lot of juices had accumulated. The slight tang was familiar and welcome. Her little tongue briefly parted her sister all the way up, stopping before reaching the pleasure centre.
Cass groaned – she was breathing extremely heavy now.
The little sister flattened her tongue out wide and pressed it into the pulsing clit in front of her, wrapping her lips around it as if giving a passionate kiss. Every movement was slow, purposeful. Nothing too hard, nothing too rapid. She had seen her sister masturbate and knew light touch got her off.
After the flat of her tongue had got her sister writhing, she formed a finer point with the tip of her tongue to trace circles around her clit. It was small and cute, but easy to keep track of.
Bella had full control.
She switched between light flutters and deep, long, passionate licks that explored the surrounding areas but always ended at the clit. Every time her tongue passed, her top or bottom lip would also brush it on the way through.
She kept it erratic, unpredictable. Cass wasn’t one to rub at the same resonance until exploding.
She needed variation.
Cass was speechless.
She tried to put her head up to thank her sister. Or marvel at her skill. Or even just tell her to never stop. She wanted this to last forever.
But it wouldn’t last forever. A hand shot to the mattress and gripped it tightly; the other snaked its way down from playing with her nipple to find the back of Bella’s head. Bella knew she was close. Her own hand could feel the tensing abdominal muscles and her face was covered in her sister’s sexual arousal.
Bella translated the moans in her head. Thank you Bells. I needed this. Another moan. You’re the best sister even. Please finish me now.
Bella obliged. She wrapped her lips in a tight circle around Cass’s clit and applied light suction – she could feel the tiny bean almost inside her mouth. Her tongue traced tight circles around it as her fingers brushed firmly over erect nipples.
She rode her sister’s bucking hips as they rose and fell, rotated and pivoted back and forth as the pleasure built.
Rapid breathing signalled the dramatic shift, and Cass managed an “Oh God Bella.”
The contractions became rhythmic and spasms rippled down Cass’s stomach and into her thighs and buttocks. Her head tilted sharply to the side with her mouth agape, letting out a gasp she didn’t know was there.
The orgasm directed Cass’s body like a puppeteer, flinging her head back and arching her spine. Bent knees lifted her cute ass out of a wet patch forming on Bella’s bed and a long, loud groan accompanied more whole-body spasms before she dropped limp.
Bella continued to very gently lap at her sister’s pussy until the sensitivity made it unbearable. Minutes seemed to pass without either noticing.
Cass hesitated only a moment before sitting on the edge of Bella’s bed. The mattress dipped gently under her weight. She didn’t crowd Bella, just stayed close enough that their shoulders almost brushed. Bella shifted without thinking, allowing that small nearness, and for a few quiet seconds Cass leaned in just slightly – planting a passionate kiss on her little sister’s glistening lips.
Bella wiped her face, embarrassed by how obvious it probably was.
Cass didn’t comment on it.
After a while, Cass let out a slow breath and glanced toward the dim room. “That was exactly what I needed,” she said simply.
Bella gave a small hum in response, still taking in the divine figure in front of her. There was something grounding about hearing Cass say it like that – uncomplicated, certain, as if for once she wasn’t fighting her own doubt.
Cass stayed sitting there a moment longer before eventually pushing herself up. She stretched once, the last of the stiffness leaving her body, and then grabbed her pyjamas and climbed back to her own bed. Bella watched her go without fully meaning to, tracking the easy way she moved now compared to earlier.
She didn’t want her to go.
As Cass climbed the ladder, Bella grabbed her hips firmly. She swung her legs out from her bed and stood behind her sister, who had paused her ascent.
“Bella?”
“I love you.”
Before Cass could reply, Bella gripped her sister’s thighs and planted her face between them, kissing her pussy from behind.
Cass was startled. “I love you too– Cass! What the–!”
Bella was confused, her nose yet again covered in her own saliva mixed with her sister’s love.
“I am done, little sis. Thank you, it’s just what I needed. I appreciate it. I appreciate you. But I’ve cum already, I want to sleep now.”
Bella was hoping her sister would return the favour but was too awkward to ask it now. She was embarrassed and couldn’t do anything but watch her sister get dressed before returning to her own bed.
The room settled again into quiet, rain tapping softly against the window. But it didn’t feel heavy anymore. It felt like something had shifted and stayed shifted.
Bella glanced across the room at the mirror.
Cass was already back under her covers, one arm resting over her eyes for a moment before dropping it. After a pause, her voice came through the dark.
“Night, Bells.”
“Night,” Bella answered.
A beat of silence passed.
Then Cass added, a little quieter, “You’re really good at giving head, you know that?”
It wasn’t said like praise she expected a response to. More like something she’d realised and wasn’t entirely sure what to do with yet.
Bella didn’t answer immediately, just looked toward the ceiling of her bunk and let the words sit there, still embarrassed from the earlier interaction.
After a while, the room eased back into stillness. The rain continued outside, steady and unchanging, while inside the house the two sisters settled into their own beds, the distance between them familiar and more intimate, but still without clarity.
The rain outside eventually faded.
The moonlight shifted across the floor.
Bella curled deeper beneath her sheets while Cass slept with a kind of calm that can only be earned by complete satisfaction.
Eventually Bella's eyes began to close.
The thoughts of the night’s events drifted away.
Sleep crept in slowly.
Just before she crossed into it, she heard Cass's voice.
Soft enough that Bella almost missed it.
"Thanks, Bells."
Two simple words.
Nothing extraordinary.
Yet Bella found herself smiling into her pillow.
Because beneath all the teasing, all the arguments, all the moments when they drove each other completely insane, there remained something unspoken between them, and it had finally been realised.
Bella would probably never admit how much she liked being relied upon.
Outside, the house remained quiet.
Inside, the sisters settled into the darkness of their shared room, the night stretching peacefully around them while a small glow lingered in the corner and sleep finally claimed them both.