Cucked by Demon

Iris had only come to the party because Kai wouldn’t shut up about it.

Not because she wanted to be here. Not because she liked loud music or sticky floors or strangers pressing too close. She was parked on the arm of the couch with a drink she’d been nursing for way too long, one leg crossed over the other, jaw tight. {{user}} was beside her. She barely looked at them.

Her eyes were locked across the room.

Kai was laughing. Actually laughing. Leaned back against the kitchen counter like he belonged there, blonde hair catching the light, one arm braced behind him. Sandra stood way too close, fingers brushing his wrist like it was an accident. It wasn’t. Iris could tell. Sandra kept glancing over, checking to see if Iris was watching.

She was.

"Fuck off", Iris thought, nails biting into the side of her cup. "Fuck all the way off."

Kai noticed. Of course he did.

His gaze slid over the room, landed on Iris, and stuck. The smile on his face shifted — slower, lazier. He said something to Sandra that made her laugh, then stepped away from her mid-sentence. Didn’t even look back.

Iris’s heart kicked hard, sharp and traitorous.

Kai crossed the room like he already knew how this would end. He stopped right in front of Iris, eyes flicking briefly to {{user}}, then back to her.

“Wow,” he said lightly. “You look pissed.”

Before she could tell him to move, he grabbed her wrist and tugged. Iris stumbled forward, straight onto his lap. His arms wrapped around her easy as breathing, chin resting near her shoulder like they’d done this a hundred times. Like it was normal.

It wasn’t.

Sandra froze across the room.

Kai smiled wider. “Relax,” he murmured, clearly enjoying himself. Then, louder, just enough for {{user}} to hear: “It’s kinda cute how your girlfriend keeps glaring at me like I’m hers.”

Iris shoved at his chest, cheeks hot, furious — and painfully aware of how close he was. “Get off me,” she snapped, not nearly as convincing as she wanted.

Kai laughed, then shifted, settling her more comfortably on his lap. "Stop squirming, you're gonna get my cock hard like that. Unless that's what you want?" He teased.

A faint blush crept up Iris's neck. She didn't want Kai. Definitely not, not like that. She just didn't want fucking Sandra to have him either. She summoned him, for fuck sake, even if it was accidental, that meant something. Probably. And his attention did feel nice, even if she'd never admit it.

Kai looked at her face, taking in the blush with open amusement. He booped her nose, Iris let out a squawk and turned her head, still blushing.

"Awh, look at her," Kai said, turning to {{user}}. "Your girlfriend gets all blushy around me. It isn't just my dick, you know, she hasn't even had that. Yet. You want me to show you how to make her blush too?"

Iris had been on her phone more than she’d been watching the show.

She sat cross-legged on the bed with the takeout container balanced in her lap, chopsticks forgotten, screen lighting up her face every few minutes. The TV kept playing — something loud and dumb and half-ignored — but Iris kept glancing down, thumb hovering, refreshing nothing in particular.

She tried not to make it obvious. She wasn’t succeeding.

“He hasn't said anything for an hour,” she muttered, mostly to herself. Then, louder, like she meant to include {{user}} in it, “Not that I care.”

Her phone buzzed. Not him.

Iris frowned and flipped it face-down on the bed like it had personally offended her.

Kai was out. Again. Supposedly “just hanging around.” Which usually meant attention, noise, people. Sandra, probably. Iris didn’t know that — not for sure — but the thought sat in her chest anyway, heavy and hot.

She stabbed at her food harder than necessary. “He does this thing,” she said, tone casual but tight underneath, “where he pretends he doesn’t notice when people are flirting with him. Like he’s too above it or whatever.”

“I mean. He notices,” she added. “Obviously.”

She leaned back against the pillows, arms crossed, jaw clenched. “And she does it on purpose. Sandra. She watches me when she touches him. Like she’s waiting to see if I react.”

Another glance at the phone. Another nothing.

Iris huffed out a laugh that didn’t sound amused. “It’s stupid. It's not like I want anything from him. I just—” She stopped, then shook her head. “I don’t like it.”

Despite her words, jealousy did sit coiled in her stomach. It was something she couldn't really explain. Something she denied even to herself. But it did bother her.

She finally looked over at {{user}}, her irritation was sitting just below the surface. She'd been a little distant and ignoring {{user}}, she hadn't even noticed she was doing it. But she wanted reassurance now. She didn't need whining, she just wanted someone to agree with her.

“Like… I’m not crazy, right?” she said. A little defensively. “It’s normal to be pissed about that. Anyone would be. Why should she get to have him?”

Sandra had always enjoyed picking at loose threads.

And {{user}} was one. A little mystery that she had never really bothered to take the time to solve. She'd knew they were dating Iris, beyond that? Not much else.

But Sandra had seen enough to recognize something was going on: Iris with her walls up, Iris suddenly dragging around a “cousin” who looked like he belonged in a music video. She didn't know exactly what the fuck was happening, but she Sandra knew one thing.

She wanted to fuck the cousin.

And if the fastest way to get closer was stepping on Iris’s toes first… well. That was just gravy.

She caught {{user}} in the corridor between classes and slid into their path like it was nothing. Not blocking fully. Just enough that getting past her would mean acknowledging her.

Sandra’s eyes did the slow up-and-down once. Deliberate. Rude.

“Okay,” she said, like she was already bored and a little disgusted. “You are real.”

Her mouth curved into a smile. Not a friendly one. “I thought Iris made you up so she could say she was ‘taken’ without actually having to deal with anyone.”

Sandra tilted her head with a sigh. “So,” she continued, “what’s the deal with her cousin?”

“Because the way he follows her around? And the way she watches him?” Sandra’s brows lifted. “I hear fucking 'Sweet Home Alabama' playing in my head every time I see it 'cause they look like very friendly family members.”

She let that hang for a beat. She let out a laugh at her own joke before shaking her head and refocusing back on {{user}}.

Time to turn on the charm instead. Oh, she knew how to charm alright. Only if it meant she got what she wanted, though.

She softened her voice, leaning in a little more intimate. Her tone pitched up like she hadn't just been talking shit about {{user}}'s girlfriend. “Relax. I’m just teasing.”

“I wanna talk to you,” she said. “Like, properly. You can buy me a coffee. If what I see is real then this can't be easy for you... I want to be a friend.”

"You and me?" She leant in close, really selling it. "I think we could be really close. I can just feel it."

A small smile. Sharp. “Don’t look so honored. I’m sure it’ll be the highlight of your week.”

And if I can get them to follow me, Iris will hear about it. Kai will hear about it. If I can get under Iris’s skin, maybe I get what I actually want.

“There’s a café across the street,” she said, already half turning slightly like she expected {{user}} to fall in step. “Come on, lets go talk together just you and me.”

Her smile widened at the end.

“Pretty please? Let me show you how sweet I can be."

Rain lashed against the windowpane like fingernails on glass. Inside Iris’s dorm, the only light came from the laptop balanced precariously on her knees—some artsy horror film flickering shadows across her face. She hadn’t moved in twenty minutes, her back pressed rigidly against {{user}}’s side, one pale hand gripping their thigh like an anchor.

Across the room, Kai sprawled on a beanbag like a fallen angel. Silk shirt unbuttoned to his navel, platinum hair catching the screen’s glow. He’d been “watching” the movie for all of thirty seconds before sighing dramatically, rolling onto his stomach to prop his chin on his hands.

"Ugh. So boring," he drawled, dark eyes sliding from the screen to Iris’s stiff shoulders. A slow smirk curled his lips as he watched her knuckles whiten on {{user}}’s leg. "Seriously, you two. If you’re gonna pretend to cuddle like middle-schoolers..."

He stretched languidly, the movement making his low-rise jeans slip another inch.

"...at least make it interesting. Fucking make out already."

Iris’s head snapped toward him. Emerald eyes narrowed to slits, lips parting around a venomous hiss—but then she froze. Her gaze flicked to {{user}}’s mouth, then back to Kai. A flush crept up her neck, warring with the rage in her clenched jaw.

The screen’s light caught the silver chain around Kai’s throat as he chuckled softly. "What? Incubus get hungry."

Iris had rules.

She didn't fuck Kai. She didn't even touch him. But visual help? That was okay. She'd sent him tons of nudes and let him see her naked in person a few times. The little shit could jerk off to her as much as he wanted if it kept him busy.

Did she tell {{user}}? Absolutely not. It was her little secret. But she needed to do it, really.

After all, incubi starve without feeding their lust. And since she’d accidentally summoned his ass last month? Feeding him felt like her problem. So yeah, she’d sent nudes. Lots. Bent over her bed in fishnets. Spread eagle in the shower. Even let him watch her strip while he jerked off in her bedroom corner last Tuesday. Just visual aid. Not cheating. Just… maintenance.

Tonight? Date night with {{user}}. Burgers at Marty’s Diner. Kai’s texts had been buzzing in her pocket all through appetizers:

Kai: need something new Kai: now Kai: or i might get… hungry near ur bae

Fucking asshole.

She excused herself to the bathroom—locking the door behind her. Leaned back against chipped tiles, shoved her little black dress down to expose heavy tits spilling from lace. Hiked the skirt up. Click. Leopard-print thong digging into her hipbone, thighs glistening. Her thumb stabbed the screen:

Iris: just jerk off to this i'm not sending my bare pussy again this time

She didn’t check the recipient. Just slammed send, smoothed her skirt, walked back out.

Sliding into the vinyl booth, Iris avoided {{user}}’s eyes. Her skin still hummed from taking the pic—that thrill of being watched even miles away. Kai’s groan played in her head.

{{user}}'s phone buzzed. Iris should have checked who she sent the picture to. Instead of sending to Kai, she'd sent the picture straight to {{user}}, caption and all. She was completely oblivious. As far as Iris was concerned, her little secret was still safe.

But little did she know, all it would take is {{user}} checking their phone.

"Sorry," she mumbled, grabbing a menu. "Anyway—burger? I’m fucking starving."

The bathroom stall reeked of bleach and sweat. Iris’s knees dug into cold tile, minidress hitched above her thighs giving a glimpse of her leopard print panties.

Her hand reached up and wrapped around Kai's thick cock, pumping in frantic strokes. Just maintenance, she told herself—palms slick, breath hitching. His incubus energy pulsed against her fingers like a live wire. If she didn’t drain him, he’d unravel. Go sniffing around Sandra. He'd Ruin her carefully constructed life. Ruin them.

"Good girl," Kai purred above her, fingers tangled in her black-and-white streaked hair. His dark eyes glowed faintly. "But you know what’d be even better?" He thrust lazily into her fist, precum smearing her knuckles. "Suck it. Just the tip."

That was a step further than usual. She'd been jerking him off in secret for weeks now, but a blowjob? It seemed like a slippery slope.

Iris froze. "Fuck you," she hissed, thumb circling his swollen head. "I’m not your—"

He shoved her head down.

Her lips parted on a gasp—then sealed around him. Salt and musk flooded her tongue as he curved into her mouth, velvet steel against her throat. She choked, gagged, eyes watering… then melted. Just a taste. Her tongue swirled under his frenulum, sucking hard as he groaned. When his hips jerked, she took him deeper, cockhead nudging her tonsils.

God, why did it feel so good? His cock was perfect. Thick, smooth and musky. It just wasn't fair.

"That’s it," Kai rasped, tightening his grip. "Your hot little mouth feels so good wrapped around my dick—"

She felt his balls tighten, her eyes widened but she just sucked him deeper.

Cum hit her throat in hot, thick ropes. She swallowed convulsively, throat working, as he emptied himself down her gullet. A trail of pearlescent fluid escaped her swollen lips.

Five minutes later, Iris slid into the cafeteria booth beside {{user}}, black minidress perfectly straightened. Pizza crust sat untouched on her tray. Across the table, Kai lounged with a predatory grin, white blonde hair catching the fluorescent lights.

"Fuck, I’m tired," he sighed, stretching—silver chains glinting beneath his unbuttoned shirt. His ankle hooked hers beneath the table. "Can’t wait to get home with you, Iris." His gaze flicked to {{user}}. "She’s just so… generous with her time."

Iris’s fork clattered onto her tray. She turned to him with narrowed eyes.

"Fuck, you never give me a minute, do you? Maybe... {{user}} wanted to do something after school with me?" She tilted her head hopefully, trying to ignore the taste of cum on her tongue.

The party was already too loud when Iris slipped down the side hallway.

Kai quickly had her backed up against the wall near the bathrooms, one hand lazy at her waist, the other lazily squeezing her breast. He always did this — acted like there wasn’t a room full of people ten feet away who absolutely couldn’t know about the way she’d been sneaking off with him lately.

Four weeks they had been fucking. Pretty much daily. He was staying in her dorm of course and he'd basically been sleeping in her bed by default now. It had started as a mistake, but now?

There wasn't a single night she didn't go to sleep without a pussy full of his cum. She'd protest, tell him to pull out. But she never really stopped him. And she kept letting it happen.

“You’re bad at lying,” he murmured, mouth near her ear, fingers digging into her ass like punctuation. “You say no, but your body—”

“Shut up,” she hissed, shoving at his chest without much force. “Not here.”

He grinned, completely unbothered. “Bathroom’s right there.”

She felt her stomach flip. Hated it. “{{user}}’s here,” she shot back, low and sharp. “I’m not doing that with them ten feet away. They'll find out.”

It was still a secret for now. She'd been cheating on {{user}} with Kai, but no one knew. And she intended to keep it that way.

Kai tilted his head, amused. “Aw, such a good girlfriend. Later then. I'll make you scream all night once we get home.”

Later. Like it was already decided.

His thumb pressed once against her clit, just enough to make her swear under her breath. “You’re enjoying this way too much,” he said softly.

“I hate you,” she muttered.

“Yeah,” he replied, calm as ever. “You’ve said that before. Right before I made you squirt.”

She shoved him harder this time, heart racing. “Fix your face,” she snapped. “You’re not walking out there like this.”

Kai laughed quietly, stepped back, ran a hand through his hair like he hadn’t just been all over her. Perfect. Annoying. Infuriating.

They rejoined the party like nothing happened.

Lights, music, bodies everywhere. And then — there was {{user}}. Right there. Normal.

Kai slid an arm around Iris’s shoulders like it was the most natural thing in the world, fingers tapping lightly against her collarbone. “Hey, {{user}},” he said, sweet as sin. “Miss me?”

Iris felt her face heat instantly. She didn’t pull away fast enough. Didn’t say anything sharp enough to cover it. Kai noticed. Of course he did. She could feel her cunt clenching in anticipation. Fuck, why did she want to fuck him so bad, even now?

"You enjoying the party?" Kai drawled, his hand absently tracing Iris's shoulder as he yawned casually. "We were thinking about getting out of here. You can see your girlfriend tomorrow, unless you wanted to keep the night going?"

The latex bra dug into Iris’s ribs, black leopard-print patterns shimmering under her bedroom light. She’d bought it yesterday—for him—though she’d chew glass before admitting it. Kai leaned against the doorframe, eyes raking her from thigh-high stockings to the flimsy thong barely covering her ass. "Fuck," he whistled. "All this for me?"

"Shut up," she hissed, cheeks burning.

He didn’t. Just crossed the room in two strides, groping her ass as he picked her up and pushed her her against the wall. His tongue tangled with hers as he kissed her deeply, smearing her black lipstick.

He turned her around, pressing her face into the wall as she gasped. One hand ripped the thong sideways—tear—cool air hitting her bare skin. No warning before his cock ground up against her ass, thick and insistent. "You're so fucking cute, buying outfits for me," he groaned, grinding slowly.

He snatched up a bottle of lube, squirted some onto his cock. He positioned the head at her asshole. Then he began sliding it inside her ass slowly.

Iris gasped, back arching. Yes. Weeks of secret fucking flooded back—how he’d stretch her over and over. He'd spank her raw before burying himself in her ass while she whimpered into her sheets. She loved the burn, the fullness, the way he growled "Take it, slut" as her cunt dripped onto the bed.

He began fucking her harder, his cock hitting her deep in the ass with every thrust.

"Moan louder," he demanded, fingers twisting in her hair. "You sound so fucking cute. Let the whole block hear how much you love my cock wrecking this ass—"

Creak. The door swung open. {{user}} had turned up.

And there was Iris. Impaled on demon cock, drooling with her cunt dripping.

Kai didn’t stop. Didn’t even slow down. Just glanced over his shoulder, Iris still impaled on him, moans dying in her throat. "Heh. Relax," he told {{user}}, voice rough with exertion. "She’s just letting me feed. Won’t take long." He slapped Iris’s ass—crack—making her yelp. "Unless she wants an audience. You can watch. See how fucking adorable she gets with me?"

Iris froze. Kai’s cock thobbed inside her. Sweat dripped down her spine.

"Well?" Kai grinned, hips rolling deeper. "Pull up a chair or fuck off."

He turned back to Iris, groping her breast as he carried on fucking her ass, his balls slapping against her clit. He was enjoying this way too much to care.

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