The sauce needed another five minutes. I stirred it slowly, more to give myself something to do than because it actually needed stirring, then glanced at the clock for what was probably the tenth time in as many minutes. Seven-oh-three. The livestream had ended almost half an hour ago. They'd lost in four sets. She'd looked exhausted walking off the court. I thought this level of attention to detail was important for my little sister – she always felt neglected by our parents and sometimes I felt like I was her only ally.

I turned the heat down beneath the saucepan and checked the vegetables in the oven. They'd caramelised nicely around the edges. Good. Another couple of minutes and everything would come together at about the same time.

Cooking had always helped when my brain got noisy. Tonight it was working... reasonably well. But it had been a long time since I had... relieved my tension. I regretted the decision not to, but I didn’t like to build bad habits.

The front door clicked shut. A second later came the familiar sound of trainers hitting the hallway floor. Right on cue.

"Hello?"

"There you are."

She appeared in the doorway still wearing her school volleyball hoodie over navy shorts, brown hair escaping a loose ponytail after the bus home. There was still a faint flush across her fair cheeks from the match, and despite the tiredness in her face she smiled the moment the smell of dinner reached her. At 5'1" she looked small but radiant.

That smile was worth the effort every single time.

"How’d it go?"

"We lost."

"I know."

"You know?"

"I watched the livestream."

Her eyebrows lifted. She laughed. "You voluntarily watched two hours of amateur high school volleyball?"

"You were playing."

I said it as though it were obvious because, to me, it was.

She shook her head, smiling in that way she did whenever she thought I was being quietly ridiculous. "You know normal people spend Friday nights doing literally anything else."

"I was."

"You watched me lose."

"I watched you play."

There was a difference.

She rolled her eyes. " I need a proper shower. Give me twenty minutes."

"No rush."

She disappeared down the hallway, and I finally let out the breath I'd apparently been holding. The apartment fell quiet again except for the rain against the balcony doors and the gentle bubbling of the sauce.

Twenty-seven years old. Successful career. Good friends. Nice apartment. Capable of cooking a decent dinner. And completely incapable of acting normal around women, even his own sister

The sound of the shower running drifted down the hall. My mind wandered before I could stop it – water sliding over her fair skin, tracing the curves of her tiny frame, her chocolate hair wet and clinging to her shoulders, those small breasts with nipples vibrant from the heat. I thickened uncomfortably in my track pants. I pressed the heel of my hand against it, frustrated at how easily she got to me. I tried to focus on dinner, but the ache lingered.

I finished dinner while she showered. The table was already set by the time I heard her bedroom door open again. I was carrying the plates across from the kitchen when she wandered back into the living area.

She'd changed into what she always wore around the apartment: a fitted pale mint tank top and simple pastel teal panties. The thin fabric of the tank top clung to her small breasts, her nipples faintly visible. Casual. Effortless. I had learned, years ago, not to stare. But tonight it was harder than usual.

"Perfect timing, " I said, putting her plate down before I accidentally stared for too long.

"Smells incredible."

"I hope it tastes like it."

She leaned against the breakfast bar watching me, and then I caught movement from the corner of my eye. She chose that moment to steal a roasted potato from my plate.

“...Did you just steal my potato?”

She looked up with the most transparent expression of innocence I’d ever seen.

“No.”

“I literally watched you.”

“You imagined it.”

I held out my hand. I didn’t care that much, but I wanted her to think I did.

“Put it back.”

Her eyes flicked from my hand to the potato pinched delicately between her slender fingers. For one dangerous second, I imagined those same fingers wrapped around something much thicker than a potato, and the front of my trackpants danced.

Her eyes met mine.

Then she smiled.

A smile that had caused me trouble for most of my adult life.

“No.”

“Put.”

“It.”

“Back.”

Instead, she tossed the potato into her mouth, laughed, and took off.

“Oh, you’ve made a mistake, ” I said, my voice coming out rougher than intended.

I chased her anyway.

She was quick for her size, years of volleyball showing in every effortless change of direction, but she’d never quite mastered corners.

“You thief!”

“It was one potato!”

“It was my potato!”

I caught up just as she reached the couch, wrapping an arm lightly around her waist before she could scramble over the cushions. The momentum carried us both forward.

She landed on her stomach first, still laughing. Her tank top had ridden up her back, and her panties had wedged slightly between the firm cheeks of her ass. The view was devastating. The thin fabric clung tightly to her, outlining the perfect heart shape of her teenage backside... and there, between her slightly parted thighs, was a small, telling patch darkening the material right over her little entrance.

I froze for half a second, drinking in the sight.

Then I flipped her over onto her back.

Her legs fell open just enough. The tank top had ridden high on one side, fully exposing one small, perfect breast, the nipple stiff and rosy. My eyes dropped lower. Her panties had pulled tight against her mound, forming a prominent, refined camel toe. The soft teal fabric hugged every contour beautifully – the smooth swell of her outer lips, the subtle, inviting cleft between them, and the faint outline of her clit pressing just above the damp material. It was exquisite. Erotic. I throbbed painfully against my track pants as I stared.

“Fuck, ” I muttered before I could stop myself. “I mean... Putting my things in your mouth like that... you’re going to get yourself in trouble.” The words slipped out, far too suggestive. Heat rushed to my face. I immediately regretted it, rubbing the back of my neck in embarrassment.

She was breathing faster now, flushed and wide-eyed beneath me.

I reached down to fix her tank top, my large hand brushing slowly over the soft curve of her exposed breast. My thumb grazed her stiff nipple as I tugged the fabric back down. As I leaned forward to do it, the thick, hard ridge of my erection pressed firmly between her legs, right against that perfect camel toe. The heat of her young pussy radiated through the thin layers. I saw her innocent expression soften as she felt me tease her senses. I lingered there for a heartbeat longer than I should have, nestling myself neatly over her crease, before I finally forced myself to pull back and offer her my hand.

“I suppose, ” I said, hoping my voice sounded steadier than I felt, “asking for it back is probably pointless now.”

She swallowed the last bite with exaggerated satisfaction, cheeks still pink.

“Nope.”

I shook my head, smiling despite the raging hardness in my pants.

“I’ll let you win this one.”

“I knew you would.”

I followed her back toward the kitchen, trying – and failing – to convince myself that the charged tension now humming between us was something I’d imagined.

Conversation flowed easily through dinner. Afterwards she insisted on drying while I washed.

"You cooked."

"I don't mind."

"I know."

"So let me."

I let out a sigh. We've had this conversation before. "I see we're having this argument again."

"We’ve had it since I’ve been old enough to help."

"And you've ignored me every time."

"Correct."

She grinned with obvious satisfaction. Conceding, I handed her the tea towel with a chuckle.

We were normally a well-oiled machine at the kitchen sink, but a splash of soapy water hit the front of her pale top, turning the thin fabric nearly see-through over her right breast. Her nipple tightened visibly against the wet material, small and stiff under the clinging fabric. Fuck. The sight sent a rush of blood straight down. I imagined sucking that nipple into my mouth, hearing her gasp. My erection grew heavy and obvious. I shifted uncomfortably, trying to hide it, then reached across her for a bowl on the far side of the sink. I pressed a little too close, half accidentally. The back of my hand deliberately brushed over her hardened nipple. At the same time, the thick bulge in my track pants brushed firmly against her stomach. I couldn’t help but notice I would take up almost all the space in her abdomen. She blushed but didn’t seem to fully register my intent. I pulled back quickly, heart pounding, clearing my throat.

The rain had settled into a steady rhythm by the time we moved to the couch. She curled one leg beneath herself, absently adjusting the hem of her tank top. I deliberately chose the opposite end.

"You know, " she said after several quiet minutes, "I don't think I've ever properly thanked you."

I frowned. "For what?"

"For... everything." Her giggle made me smile.

She listed all the times I’d been there for her. Each one was simple to me. When she finally looked at me and said, "I honestly don't know what I would've done without you, " something tightened in my chest. Guilt.

"I don't know how you do it, " she continued. "You're always calm. You never seem overwhelmed. Everything's organised. You've got your life together in a way I've always wanted."

I almost laughed. "I've fooled you, then."

She frowned. "What?"

"I'm not calm."

I rubbed the back of my neck and the words kept coming. I admitted I overthought everything. That dating had never really worked. That women saw me as dependable, nice, safe – but nothing more.

By the time I realised how much I'd said, I wanted to disappear.

She was staring at me. Then, quietly, she said, "They're idiots."

I smiled despite myself. "You don't have to say that."

"I'm not saying it to be nice."

The apartment became very still. Rain tapped softly against the glass. The refrigerator hummed in the kitchen. Neither of us spoke.

Then she leaned forward and took my hand. Her small fingers wrapped gently around mine. Warm. Soft. Certain.

I froze.

Every boundary I’d built felt paper thin.

She shuffled on her knees to close the gap between us. My eyes immediately noticed her knee splay out and spread her legs. Combined with the shuffling movement bunching up her underwear into her crease I tried to peel my eyes away and maintain the boundary of trust and care, but I was overruled. I throbbed so much it was painful. I needed release. Needed release.

"I want to help you, " she whispered. "Whatever you need. I hate the idea of you feeling like no one sees you."

I hesitated, my pulse hammering. I shouldn’t ask this. She’s my sister. A high schooler. This is not what she means. She is too young to know the help I seek. If I say it, there’s no going back. But the ache in my cock and the genuine care in her eyes overpowered the doubt. I swallowed hard.

"You don’t have to do anything, " I said, voice rough. I was listening to myself speak but couldn’t remember what I was saying.

"But I want to, " she pressed, her hand resting on my thigh. The rest of her words were replaced by a high pitched ringing in my head.

The hand on my thigh. Maybe she did know what I need?

Fuck it. After a long internal battle, I finally admitted, voice low and strained, "I... I need your mouth on me. If you’re sure. God, I know I shouldn’t ask, but I’ve thought about it for so long."

She blinked, cheeks flushing. I could see the nervous uncertainty in her expression. She leaned up and kissed me first, soft and sweet, then trailed hesitant kisses down my chest. When she reached my lap she pressed shy little kisses along the hard bulge in my track pants, mouthing at me through the fabric. It was innocent and teasing all at once, and it drove me crazy.

I groaned softly and slid my fingers into her brown hair, gently guiding her lower. She followed, still exploring, kissing and nuzzling along my length. The sight of my sister’s pretty mouth on me like that made my cock throb painfully.

Finally, I couldn’t wait any longer. I tugged my track pants down, freeing myself. Her eyes widened as it sprang free. She stared for a moment, clearly a little intimidated. I sometimes forgot how young she is, it looked longer than her whole face.

I rubbed my head slowly across her tongue as she parted her lips for me, leaving her mouth open and tongue out in the sweetest, most inexperienced way. The first warm, tentative licks made my thighs tense and buck. She was unsure but eager, and that combination was intoxicating.

“That’s good, ” I murmured, stroking her hair. “You can use your lips too.”

She wrapped them around the head and sucked gently. It felt incredible, but I knew she was new at this. I anticipated the common mistakes – going too shallow or too fast – and guided her patiently. When she found a rhythm that worked, sucking a little harder while stroking the base with her small hand, I groaned deeply and praised her.

“You’re doing so well... just like that.”

She grew a little bolder, swirling her tongue around the sensitive head. Every positive reaction from me seemed to give her more confidence. At points she got over-eager and had to pull back for air, but my reassurance made sure she came back for more. As the pleasure built and my control started to slip, I pushed a little too deep. She gagged and pulled back quickly, eyes watering.

“Sorry, ” she whispered, looking embarrassed.

I immediately softened, cupping her cheek. “Hey, it’s okay. You’re doing so well. We don’t have to go any deeper than you’re comfortable with.” Even though I was aching to bury myself down her throat, I refused to push her too far. She was still my little sister. I wouldn’t hurt or embarrass her even though my whole body screamed at me to fuck her face raw.

She went back to it with renewed determination. The wet heat of her mouth, the shy little licks and sucks, the way she looked up at me for approval – it was pushing me dangerously close to the edge. My need to cum was becoming overwhelming. I could feel my balls tightening as I fought the urge to thrust harder into her mouth.

“Fuck... if you keep going like that, I’m going to shoot my load straight down your throat, ” I groaned, voice rough with lust.

The dirty words slipped out before I could hold them back. My hand tightened possessively in her hair as another wave of need hit me. I was already imagining what else I wanted to do to her. My hips bucked forwards, thinking I am about to impregnate a woman with the biggest load of my life – my body unaware it was my own flesh and blood.

“Has anyone ever eaten your pussy before?” I asked, breathing hard. When she shook her head shyly, still working me with her mouth, I rasped, “Then if you keep this up, I’m going to bury my face between your legs and return the favour. I want to taste you so badly.”

She tried again, swirling her tongue, hollowing her cheeks, even attempting to relax her throat to take me deeper. Each brave effort made her gag softly, saliva dripping down her chin and along my shaft. She kept going – determined, eager, messy – for several long minutes, alternating between her lips and hand, clearly wanting to please me. But I was too thick and long for her to take fully.

"I'm sorry, " she gasped, pulling back with swollen lips. "You're just so big... I can't... I can’t get all of you."

I kissed her deeply, then pulled back, voice low and strained. "I need to be inside you."

I tugged her panties down to her knees. She was soaked. I spread her little legs and pressed the thick head of my cock against her eager entrance.

She hesitated, heart racing in her eyes. "Please..." she breathed.

I pushed forward slowly. The stretch must have been intense for her – I could feel her teenage innocence peeling away as she was separated from herself. I sank into her, as hard as I had ever been, bulldozing over every sensitive ridge inside for the first time. She looked down between us, eyes wide at the sight of my thick length disappearing into her tiny body. I stayed still once I was inside my sister up to the hilt, breathing hard, fighting every instinct to thrust.

Then I began to move – slow, deep thrusts that dragged almost to the tip before enjoying the feeling of her full entrance again. Each stroke felt like heaven, her slippery heat gripping me like I had never felt before. I wrapped one arm around her small frame, my tall body covering hers completely. The head of my cock nudged against that deep spot inside her with every thrust.

"I shouldn't, " I murmured against her neck, voice rough even as my hips rocked faster. "We shouldn't be doing this... You’re my baby sister."

But neither of us stopped. The hesitation only made the heat between us burn hotter.

I took my time, savouring every sensation – the way her inner walls fluttered and clenched around my thickness, the wet, obscene sounds of her pussy taking me, the way her small breasts bounced with each thrust. I could feel her getting wetter, her body slowly adjusting to my size. My own pleasure built steadily, a heavy steel spring tightening at the base of my spine. I angled my hips to hit that sensitive spot inside her again and again, drawing soft whimpers from her lips.

My pace gradually grew more urgent, thrusts longer and deeper. I could feel myself swelling inside her, becoming more pronounced as I neared the end. She fluttered wildly around me. I hadn’t cum in so long, this load was going to be enormous.

"Wait, " she gasped, legs tightening around my waist. "Don't... don't finish inside me..."

I groaned deeply, hips stuttering. I could feel the inevitable building – my cock pulsing, the head flaring larger against her deepest point. Every muscle in my body tensed as I fought it, but the slick grip of her pussy was too much.

"I can't hold back, " I rasped. "I'm going to cum inside you."

The first heavy spurt of warmth flooded deep into her. Pulse after pulse followed, thick and powerful, filling her completely. The feeling of claiming her so intimately pushed me over the edge. Her pussy clenched hard around me as she came too, trembling beneath my rippling shoulders.

We stayed locked together for a long time afterward, still twitching gently inside her, our breathing slowly returning to normal as the rain fell softly outside.