#56
The cool cotton sheets clung lightly to William’s bare skin, a faint whisper of sensation that did little to quell the heat building inside him. He propped himself up against a stack of pillows in his darkened room, the only light coming from the pale blue glow of his phone screen.
It was well past midnight, the house enveloped in that profound silence where every creak of the floorboards seemed amplified, and the world outside had long surrendered to sleep.
William’s thumb hovered over the screen as he scrolled through his chat with some girl named Lena.
She was using Christina’s phone—some girl he’d never even met, or at least couldn’t recall. Christina was out at the club with her, celebrating their friend Chloe, that stunning brunette with curves that could make any man’s pulse race.
William had seen Chloe around before, her tight dresses hugging her hips and full breasts. But Lena? Probably a new friend, or someone who hadn’t come over to their house yet… but one thing is clear: she has an incredibly amazing body!
His dick didn’t take long before it was harder than adamantium.
Lena’s words painted vivid pictures: her at the club, Christina’s tongue tracing slow, teasing circles around her clit.
[Your sister is eating me out right now,]
She said, and oh, he wished he was there to watch!
She continued to ask me about pictures of myself, and even my dick, as if she was desperate for it. And of course, William obliged. He’d sent back a photo of his chest, flexing just enough to show off his pecs, and then, when she begged for more, a close-up of his hardening dick, thick and veined, already leaking a bead of precum at the tip.
“God, I want to wrap my lips around that,” she’d replied almost instantly. “Your sister’s fingers are deep inside me, but I’d rather it be you fucking me.”
Me too!
He was rock-hard now, his cock straining against his palm as he lay there, the phone balanced on his thigh. The arousal coiled tight in his gut, making his balls ache with need.
Sleep? That was a distant memory, chased away by the fire from Christina’s teasing, and now it was fed stronger by Lena’s words and sent pictures.
Christina had told him earlier, telling him to wait up, that she’d be home soon. That she would come and fuck him all night.
But waiting felt impossible. Not to mention, they seem to be having so much fun that William doubted they could really return tonight.
Should I wait?
His hand moved on its own, wrapping firmly around his dick, stroking from base to tip in long, deliberate pulls. The skin slid smoothly over the rigid core, each pass sending jolts of pleasure up his spine.
He pictured Christina’s mouth on him instead—her tongue swirling around the head, sucking greedily while Lena watched, maybe joining in to lick his balls. Or Chloe, that brunette bombshell, bending over for him while the others took turns.
His breath came faster, hips bucking slightly into his fist, but it wasn’t enough. He needed more. He needed to fuck.
With a frustrated groan, William tossed the phone aside and swung his legs over the edge of the bed. The cool air hit his naked body, raising goosebumps on his skin, but it did nothing to cool the feverish heat pulsing through his veins.
Mom was pulling a night shift at the hospital, Daniela was out on her own during the late hours—the house was empty, save for his sisters.
Shall I go and visit Evelyn?
But her room was downstairs, a longer trek that might kill the urgency burning in him. No, he needed release now, and the closest option was upstairs, just down the hall: Celestina’s room.
He didn’t bother with clothes or even pausing to think it through. His cock bobbed heavily as he padded barefoot across the carpeted floor, the door to her room slightly ajar—had she left it like that?
No matter. He pushed it open quietly, the hinges silent in the stillness.
It was dark, with almost zero visibility. Celestina likes sleeping in this darkness. It might be a bother for anyone, especially for him who can’t cope well with the dark. However, Celestina didn’t have a problem with it. She can see through the dark as well as she would in daylight. A perk of her mutation.
Fortunately, a bit of moonlight filtered through half-drawn curtains, casting a silvery glow over the bed where a figure lay sleeping.
The sheets had slipped down to her waist, revealing the smooth curve of her shoulder and the swell of her breast, nipple pebbled in the cool night air.
She was naked, her body relaxed in slumber, long hair splayed across the pillow like a dark halo. In the dim light, her features were indistinct, shadows playing over her face, but William’s mind filled in the blanks.
It had to be Celestina—Julia wasn’t sleeping over tonight, and who else could it be?
Besides…
He could see the reptilian scales gleaming with smooth, metallic light on her body. There’s no way she can’t be his beloved, adorable little sister.
His heart pounded as he approached, cock throbbing with anticipation. She looked so peaceful, so inviting, her chest rising and falling in slow, even breaths.
A leg had kicked free of the covers, exposing the soft inner thigh and the shadowed V between her legs. William’s mouth went dry, his gaze locked on that intimate spot. He couldn’t wait for her to wake up; the need was too raw, too demanding.
She always said to come to her if I wanted to have sex, so this should not be a problem…
Climbing onto the bed carefully, William knelt beside her, the mattress dipping slightly under his weight. One hand reached out, tracing the smooth line of her hip, her skin warm and silky under his fingertips.
She didn’t stir, her breathing steady and deep in the dim moonlight. The faint scent of vanilla lingered in the air, mixed with something earthier, more primal, but he dismissed it as the night’s haze playing tricks on his senses.
Emboldened by her stillness, he leaned down, pressing his lips to the curve of her neck, tasting the faint salt of her skin. A soft sigh escaped her, but her eyes remained closed, lashes fluttering faintly against her cheeks.
He traced the scales on her neck up to her cheeks with his tongue, and she moaned. His hand slid higher, cupping the full swell of her breast, his thumb brushing over the hardened nipple. It pebbled further under his touch, tightening into a firm peak, and he squeezed gently, rolling the sensitive bud between his fingers with deliberate pressure.
Did they get a bit bigger?
He noticed, but his adled mind didn’t think too deeply about it and continued to squeeze them. Her body responded, arching slightly into his hand, a subtle invitation that made his cock throb harder.
William’s shaft ached, pressing insistently against her thigh as he shifted closer, the heat radiating from her body drawing him in like a magnet.
He kissed lower, trailing his mouth along her collarbone, nipping lightly at the soft skin there before capturing her nipple between his lips. He sucked firmly, his tongue flicking against the erect tip in quick, teasing laps, drawing a quiet moan from her throat that vibrated through him.
Her hand twitched at her side, her fingers curling into the sheet. The sound fueled his fire, his free hand dipping between her legs, fingers parting her slick folds. She was already wet, her pussy lips swollen and glistening with arousal even in sleep, the warmth coating his fingertips as he explored.
William groaned against her skin, the vibration humming through her breast, and dipped a finger inside, feeling her tight walls clench around him. So hot, so ready, her inner muscles fluttering greedily.
He pumped slowly, savoring the way she gripped him, adding a second finger and curling them to stroke that sensitive ridge inside her. Her hips shifted in response, a subtle grind against his hand, her breathing quickening into shallow pants.
William’s pulse raced, his cock leaking steadily now, a slick trail of precum smearing across her thigh with each involuntary twitch. He couldn’t hold back anymore—the need clawed at him, demanding release.
Withdrawing his fingers with a wet pop, he positioned himself between her legs, nudging them apart with his knees. The head of his dick pressed against her entrance, slick with her juices, and he pushed forward inch by inch.
Her pussy stretched around him, hot and velvety, gripping his shaft like a vice, but she felt tighter than usual, her body resisting just enough to make him pause. William wondered if she was on her period or something, the unusual resistance adding an edge of challenge to his lust.
Just then, her entire body tensed beneath him, a sharp intake of breath breaking the rhythm. Well, this wasn’t the first time he’d had to use a little extra force with his sister—his cock was huge, after all.
Sliding his hands off her ass and up her back to her shoulders, he gripped them firmly with both hands. Pulling with controlled force, the head of his cock finally breached her, sliding into her hot, dripping pussy. She was incredibly wet, her arousal easing the way despite the tightness, and he sank deeper, inch by throbbing inch.
“…O, ooh, f-fuck~ you’re too big~!”
The words came out in a husky whisper, strained and breathy, and William froze, buried halfway inside her.
It wasn’t Celestina’s voice that reached his ears—deeper, with a subtle rasp that sent a jolt through him. Familiar, yet not quite right.
“Tina…?” he heard himself ask, his voice a stunned whisper, heart slamming against his ribs.
“Hmmm,” came another familiar voice from beside them, soft and sleepy, echoing in the dark. It was Celestina’s voice, but not from underneath him—from the other side of the bed, where the sheets rustled faintly.
Before William could react, a pair of arms wrapped around his neck from below, pulling him close and pressing his body against a soft, yielding pair of breasts.
The woman’s skin felt different up close—slightly textured, almost scaled in places, like fine leather under his chest. Panic and confusion warred with the insistent throb of his cock still lodged inside her, but she held him tight, her breath hot against his ear.
“Hmm, Yuka?” Celestina murmured from the side, her voice groggy, shifting slightly but not fully waking.
“W-what is it, Tina?” the woman beneath him replied, her tone hushed and urgent, the name hitting William like a thunderbolt.
Yuka. Their cousin. The pieces clicked into place—a hazy memory surfacing from earlier that night. Someone had arrived this afternoon, coming to visit Celestina.
He had heard laughter and voices while he was holed up in his room, browsing the net. He’d heard the voices downstairs, faint and muffled, but dismissed them, too absorbed in the anime he was watching to care.
But to think it was Yuka, his older cousin.
Yuka has a mutation like Christina’s. Lizard-like features: subtle ridges along her jaw, a forked tongue he’d glimpsed once at a family gathering years ago. And now she was here, tangled in the sheets with Celestina, and he’d just plunged his cock into her, thinking she was his sister.
The realization sent a jolt through him, equal parts shock and forbidden thrill, his shaft twitching deep inside her slick heat despite the alarm bells in his head.
“S-sorry, did I wake you up?” Yuka whispered, her voice a husky thread in the darkness, her arms wrapping tighter around his torso like iron bands, pulling him down to shield their illicit connection.
Her body shifted beneath him, subtle but deliberate, her pussy clenching around his buried length in a vise-like grip that made his breath snag in his throat.
Those inner walls fluttered, rippling with an unnatural rhythm born of her mutant physiology, massaging his cock from base to tip as if coaxing him to forget everything but the pulse of pleasure.
“Hm… stop moving around,” Celestina mumbled from the other side of the bed, her words slurring into the haze of sleep.
The sheets rustled softly as she rolled over, settling deeper into her pillow, her breathing evening out into the steady cadence of unconsciousness.
“S-sorry. I was just having a nightmare… you can go back to sleep,” Yuka replied swiftly, her tone steadying into feigned innocence.
With one hand, she snatched the edge of the thick blanket, yanking it up and over them in a fluid motion that shrouded their bodies in a cocoon of fabric and shadow.
The heavy material draped like a veil, trapping the warmth of their skin and the musky scent of arousal in its folds. Their hearts are beating wildly in unison.
Fortunately, Celestina’s soft snores echoed once again, her eyes closed.
Nevertheless, although they were able to avoid being found out, William’s mind still spun in a whirlwind—panic, guilt, and raw lust colliding—but Yuka offered no quarter for hesitation.
Her emerald eyes caught the faint moonlight seeping through the curtains, glinting with a sly, predatory hunger that pinned him in place.
…
