This Never Happened... Lie Detector

It was supposed to be just another late night.

The quiet hum of electronics, the soft glow of monitors, and the easy comfort of two friends and lab coworkers who'd spent the last years side by side pushing deadlines, trading sarcastic remarks, and pretending that whatever this was between them didn't exist.

Stefan adjusted a wire on the sleek device resting on the table, his tall frame hunched slightly as he focused, dark brows furrowed in concentration. The faint stubble along his jaw caught the light when he leaned back, flexing his fingers after hours of fine-tuning. His dark hair was slightly tousled from running his hands through it too many times a habit Dina always noticed.

"The prototype's done," he finally muttered, more to himself than to her. "It's ready."

Across from him, Dina stretched in her chair, petite frame arching like a satisfied cat. She set her coffee down, the sleeves of her tank top slipping just enough to tease bare shoulders. Tight jeans hugged her hips and thighs, her small stature making her look almost delicate until you caught that glint in her blue eyes. Mischief. The kind Stefan had learned to be wary of.

Her fiery red hair was pulled into a loose ponytail, but rebellious strands framed her face, softening the sharp smirk she shot his way.

"About time, professor," she teased, voice laced with playful sarcasm. "Thought we'd be retired before you finished."

Stefan's lips quirked into a subtle smile as he leaned back, his broad shoulders stretching the fabric of his t-shirt. Dina's eyes lingered for just a second too long but when he looked up, she was already glancing away, feigning interest in her coffee.

"You know," she continued, casually propping her chin in her hand, "most people would celebrate creating something that's gonna make us rich."

"We will." Stefan's voice was calm, deep, with that usual controlled edge. "After we make sure it works."

Dina let out a dramatic sigh, her bare foot nudging his leg under the table a gesture that could've been innocent if it weren't for the way her toes lingered against his calf.

"And here I thought Emily was the buzzkill in your life," she teased, her voice dancing on that line between friendly banter and something more dangerous.

Stefan's gaze flicked to her, sharp but amused. "Emily keeps me grounded."

"Yeah, I bet she does," Dina replied, a hint of something sharper in her tone though she masked it quickly with a grin. "What's she got you doing this weekend? Farmer's market? Wine tasting?"

He chuckled softly. "Dinner with her parents."

Dina winced playfully. "Yikes. Sounds thrilling."

"What about you?" Stefan countered, folding his arms across his chest, the movement making his biceps flex slightly. "Mark still dragging you to those underground fight nights?"

She laughed, tossing her hair over her shoulder. "Jealous? He likes a bit of danger."

Stefan raised a brow. "No, he likes showing you off."

Dina's smirk faltered for just a heartbeat, the truth hitting a little too close. She covered it with another sip of coffee, but Stefan noticed. He always noticed.

There was a brief silence comfortable, but heavy with things unsaid. The kind of silence only two people who knew each other too well could share.

Then Dina's eyes lit up again, mischief returning full force.

"Alright, Mr. Grounded," she said, sitting up straighter, her petite frame barely reaching his chest even when she stood. "Let's test your precious machine. But let's make it interesting."

Stefan tilted his head, sensing the shift. "Define interesting."

Dina leaned forward, elbows on the table, the neckline of her tank top gaping just enough to remind him she wasn't wearing a bra. Her blue eyes locked onto his, daring.

"We hook ourselves up," she said, voice dropping just slightly. "Ask each other real questions. No boring technical crap. Let's see how honest we really are."

Stefan's jaw tightened, his logical mind already flashing warning signs. But beneath that, something darker stirred. Curiosity. Desire.

"We're not doing truth or dare with a lie detector," he said, though his voice lacked conviction.

"Why not?" Dina challenged, that wicked smile spreading across her lips. "Scared I'll find out all your secrets?"

"Yeah. We hook ourselves up and ask... real questions." Dina's grin was pure trouble the kind that had Stefan questioning his better judgment more times than he cared to admit. She leaned back in her chair, petite frame relaxed, but her blue eyes sparkled with a challenge that made his pulse tick up. "C'mon, what's the point of a lie detector if we don't push it a little? Scared I'll find out what's really going on in that head of yours?"

He hesitated just for a heartbeat. That was always the difference between them. Stefan calculated risks. Dina invited them.

"You don't know when to stop," he muttered, more to himself than to her.

"That's what makes me fun," she shot back, smirking as she stretched her legs out under the table her bare foot sliding up his calf in a move that felt way too casual to be innocent.

Stefan's jaw tensed, but he masked it with a dry smile. "Fine." He reached for the sensors, already regretting it and wanting it anyway. "But we set rules."

Dina rolled her eyes dramatically, red hair swaying with the motion. "Ugh, you're no fun. But sure rules. What do you suggest, professor?"

"Safe word," he said, glancing at her as he unwound the wires. "If things get too personal, we stop."

Her grin deepened, as if she knew exactly where this was going and had no intention of stopping it. "Alright. What's our word?"

Stefan smirked despite himself, shaking his head. "Pineapple."

Dina burst out laughing, the sound light but edged with something sharper like even this was a game she planned on winning. "Cute. Alright, pineapple it is. If things get too real, we bail. Deal?"

He met her gaze, holding it longer than necessary. "Deal."

But they both knew neither of them would say it.

Ten Minutes Later

The soft beep of the machine echoed through the dimly lit room as Stefan fastened the final sensor to Dina's slender wrist. Her pale skin contrasted against the dark strap, the pulse beneath it fluttering just a little faster than normal not that she'd ever admit it.

They sat across from each other now, wires linking them to their own creation. The prototype glowed between them, silent and waiting like it could sense the storm it was about to unleash.

"Ladies first," Stefan said, leaning back in his chair, trying to project confidence while his gut twisted with anticipation.

Dina tapped a finger against her lips, pretending to ponder but the glint in her eye said she already had her question locked and loaded.

"Okay... easy one to warm us up." She tilted her head, red strands falling over her shoulder as she grinned. "Do you think you will try to lie to me about something tonight?"

Stefan's jaw flexed. The answer was automatic. "No."

PING.

The soft pulse of the machine felt louder than it should've been.

Dina's smile widened like a cat catching sight of cornered prey. "Oof. Starting strong."

Stefan cleared his throat, shifting in his seat as if he could shake off the discomfort crawling up his spine. "Alright, your turn," he shot back, his voice steadying. "Do you think you would lie to me too?"

Dina laughed a little too loud, a little too forced. "No."

PING.

"Stefan" Seems like its a tie with a smirk.

Dina said nervously. I guess so. Lets up the stakes then.

"Have you ever compared your Emilly to another girl?"

Stefan's face more serious now. The answer was automatic. "No."

PING.

Dina was now smirking. You lie again hehe. Seems the machine it working better then we thought.

Stefan cleared his throat, shifting in his seat as if he could now feel the discomfort building up. "Alright, your turn now," he shot back, his voice direct. "Have you ever compared your loved ones performance to an ex's performance?"

Dina whispered almost a soft insecure. "No."

PING.

"Stefan" Seems that the PING works really accurate.

Her cheeks flushed instantly, a rosy hue that spread across her pale skin, but she didn't look away. Instead, she bit her bottom lip, that playful glint turning darker.

"Okay, asshole," she murmured, leaning forward on her elbows, cleavage pressing together in a way Stefan couldn't not notice. "Two can play."

She sat back, crossing her arms under her chest, blue eyes narrowing thoughtfully.

"Have you ever checked out another girl while on a date with Emily?"

Stefan's lips parted, a scoff on the tip of his tongue. "No."

PING.

Dina let out a low whistle, shaking her head. "Tsk, tsk. Emily would not be impressed."

Stefan ran a hand over his stubbled jaw, feeling the heat rise in his neck. "We're not counting harmless looks."

"Please," Dina snorted. "Men don't do harmless."

His eyes narrowed. "Have you ever flirted with a guy just to piss Mark off?"

Dina didn't hesitate. "No."

PING.

She laughed, but this time it was softer like she was savoring how quickly the questions were shifting from playful to personal.

"Alright," she purred, her voice dropping an octave. "Let's turn it up a bit."

Stefan swallowed, sensing the shift but too deep in the game to pull back now.

"Do you think about other women when you jerk off?" Dina asked, her tone innocent but her eyes anything but.

Stefan's breath caught for a fraction of a second before he answered. "No."

PING.

Dina's tongue peeked out to wet her lips, clearly enjoying herself now. "Wow, Stefan. You really are just a man after all."

He leaned forward, elbows on his knees, voice low. "Getting cocky?"

"Always," she whispered back.

His gaze raked over her red hair, flushed cheeks, petite frame practically vibrating with excitement. She was thriving in this dangerous little game.

"Do you ever imagine fucking someone else when Mark's inside you?" Stefan asked, his voice sharper than intended.

Dina's breath hitched, her bravado flickering but only for a second.

"No."

PING.

The air between them thickened, both of them acutely aware of the heat pooling low in their bodies, of the way their eyes kept drifting lips, neck, the curve of thighs.

They should've stopped.

But curiosity was a drug neither could resist.

"Have you ever thought about what I'm wearing under my clothes?" Dina whispered, tilting her head, daring him to lie.

Stefan's mouth was dry. "No."

PING.

Dina's legs crossed slowly under the table, her chest rising and falling a little quicker now.

Stefan's voice was rough when he spoke next. "Have you ever worn something tighter around me just to see if I'd look?"

Dina's cheeks darkened, but a wicked smile tugged at her lips. "No."

PING.

They both stared at each other then no more pretending it was just a game. The atmosphere had shifted from playful to electric, a current of tension humming between their bodies, daring them to take that next step.

Dina's voice was softer when she spoke again almost reverent.

"Okay... let's stop pretending we're saints."

Stefan's heart pounded in his chest, the weight of those words crashing over him like a wave.

They'd crossed a line without even realizing it and now, there was no going back.

Dina's gaze locked onto his playful, yes, but beneath the surface was something far more dangerous. A dare. A challenge Stefan could feel in the tightening of his chest, in the way the room suddenly felt too small, too hot.

Her voice was soft, but every word hit like a spark to dry kindling.

"Have you ever thought about fucking me?"

For a moment, silence reigned. The hum of the machine filled the space between them, loud in Stefan's ears alongside the pounding of his heartbeat.

His mouth opened, instinct ready to deny ready to laugh it off like every other time they'd skirted too close to that invisible line.

But this wasn't like before.

The glow of the lie detector, the weight of her stare, the heat pooling low in his gut there was no room for lies now. Not even the small, polite ones that kept friendships intact and relationships safe.

"... Yes."

The machine stayed quiet. No beep. No reprieve.

Dina's breath hitched audibly, her chest rising as if the air had suddenly thickened around her. For the first time that night, the mask of playful teasing slipped not completely, but enough for Stefan to see the hunger lurking beneath.

Her blue eyes, wide and shining under the dim light, flicked down for the briefest second toward his mouth, then lower, as if imagining what that truth might look like real.

Her tongue darted out to wet her lips, a nervous habit or maybe anticipation.

She swallowed hard before whispering, "Your turn..."

Stefan didn't hesitate. Not anymore. The dam was cracked and leaking, and he wanted needed to see just how deep this went.

"Have you ever fantasized about me?" His voice was lower now, rougher, like it scraped against something primal on the way out.

Dina's lashes fluttered as she let out a shaky breath, leaning back slightly as if distance might protect her.

"No."

PING.

The sharp beep sliced through the tension like a knife, and Dina visibly flinched not from fear, but from being caught. The flush that bloomed across her pale cheeks spread down her neck, disappearing beneath the thin strap of her tank top.

Her fingers drummed anxiously on the table, the first true sign of nerves all night.

Stefan's lips curved into something darker than a smirk not smug, but knowing. The kind of look a man gives when he realizes he's not alone in his sins.

"... Dina." His voice held weight now, thick with the gravity of where this was headed.

She avoided his gaze, suddenly fascinated by the wires tangled between them. Her legs shifted under the table, crossing tightly as if that would hide the way her body was reacting.

"It's not like that," she murmured, the defensiveness in her voice undercut by how breathless she sounded.

Stefan's eyes narrowed, leaning forward, elbows resting on his knees as he closed the space between them without moving an inch.

"... What kind of fantasies?"

It wasn't a suggestion. It was a command one enforced by the silent threat of the machine still pulsing between them.

Dina's throat bobbed as she swallowed, arms crossing under her chest in a weak attempt to shield herself not from Stefan, but from the truth clawing its way out.

"Just stupid stuff," she whispered, almost too quiet to hear.

PING.

Her eyes slammed shut for a moment, teeth sinking into her lower lip as if she could physically hold back the confession.

Stefan's cock started throbbed painfully against his jeans, but he didn't move watching her squirm was almost as intoxicating as hearing her admit it.

"Tell me," he said, his voice a low growl now, thick with arousal and authority.

Dina sat there for a long moment, her fingers tightening around her own arms like she could squeeze the desire out of her system.

But the machine was relentless. It would keep exposing her until there was nothing left to hide.

Finally, with a shaky breath, she let her arms fall to her sides, her shoulders slumping in defeat or acceptance.

"... Sometimes when I watch porn," she began, voice barely above a whisper, "there's this one guy... looks a little like you."

Stefan felt his pulse hammer in his ears, his breathing steady but deep forcing control he was rapidly losing.

Dina's eyes flicked up, meeting his for a split second before darting away again shame and raw arousal battling behind that ocean-blue gaze.

"And I..." she hesitated, her nails digging into the edge of the table, "I watch cheating porn videos. But like roleplay ones."

Her voice cracked slightly, as if saying it aloud made it real in a way it hadn't been before.

"I like the idea of... doing something I'm not supposed to."

The words hung between them like smoke heavy, suffocating, impossible to clear.

Stefan's jaw clenched as he shifted in his seat, the pressure in his jeans becoming unbearable. Every instinct screamed at him to take to close the distance, to drag her onto his lap and make those fantasies reality.

But his voice stayed level barely.

"So..." he began, his dark eyes raking over her flushed face, "... when you watched those videos..."

His tongue wet his lips, savoring the power he now held.

"Did you imagine me fucking you instead of him?"

Dina's lips parted, a soft, breathy sound escaping half denial, half need. Her fingers gripped the table like it was the only thing anchoring her.

"... No "

PING.

The sound was deafening.

Dina's head dropped, red hair falling like a curtain around her face, hiding the expression Stefan knew was equal parts mortification and dripping arousal.

Her thighs pressed together under the table, as if that would do anything to soothe the ache they both knew was there.

Stefan exhaled slowly, leaning back as a dark smile tugged at the corner of his lips there was no going back now.

And neither of them wanted to.

Dina's thighs pressed together instinctively, a subtle movement she wasn't even conscious of until she caught Stefan's gaze drop. The way his dark eyes flicked to her legs, the corner of his mouth twitching like he'd just confirmed everything he needed to know.

Her cheeks burned, but she forced a glare, masking her flustered state with defiance.

Stefan's voice dropped, smooth and dangerous, like a predator savoring the moment before the pounce.

"Are you wet right now?"

Dina scoffed, rolling her eyes even as her pulse spiked. "No."

PING.

The sound was a bullet to her pride.

Stefan stood slowly, the scrape of his chair echoing in the charged silence. He circled the table like a hunter, his tall frame looming over her petite one, every step deliberate controlled.

When he reached her side, Dina's breath hitched. She could feel the heat radiating off him, the tension crackling between them like static. The word pineapple flashed in the back of her mind, but it felt so far away now. Like a joke from a lifetime ago.

Her lips parted, but no protest came when his hand slid between her thighs, fingers pressing firmly against the denim stretched over her core.

The evidence was undeniable her jeans darkened slightly where his fingers pressed, the heat of her arousal soaking through the fabric.

A low, satisfied growl rumbled from Stefan's throat as he leaned down, his breath ghosting over her ear.

"Liar," he whispered, his free hand gripping her jaw, forcing her to meet his gaze.

Dina's resolve shattered under the weight of his touch, her hips betraying her rocking forward, seeking more pressure like she couldn't help herself.

Her heart pounded as her hand shot out, instinctively grabbing at the front of his jeans half to push him away, half to steady herself.

That's when she felt it.

Her fingers froze, the playful retort dying on her tongue as she realized just how hard he was beneath the denim. Thick, straining against the fabric, radiating heat.

Curiosity sparked in her blue eyes, quickly swallowed by something far more dangerous.

"... You're not hard, right?" she asked, her voice breathless but laced with wicked amusement, fingers deliberately brushing along the outline of his cock feeling how it twitched at her touch.

Stefan's smirk was pure sin. "No."

PING.

Dina let out a shaky laugh, but it wasn't mockery it was disbelief. Excitement. The thrill of discovering just how far this game could go.

Her hand didn't leave him. If anything, she pressed firmer, her palm gliding along the impressive length straining against his jeans. She could feel how thick he was, how badly his cock wanted out and the realization sent a fresh wave of heat pooling between her legs.

"Holy shit..." she muttered, almost to herself, her cheeks flushed as her fingers traced the outline of his shaft. "You've been hiding this the whole time?"

Stefan's eyes darkened, his hand still resting possessively on her thigh. "Didn't think you were that curious."

Dina bit her lip, glancing up at him through her lashes, her pride warring with her desire but losing fast.

"... How big are you really?" she asked, voice soft but teasing, like she could pretend this was still harmless banter.

Stefan arched a brow, his smirk deepening. "Why don't you find out?"

Her pulse skipped. For a moment, her hand hovered at his waistband hesitation flickering across her features. But then, slowly, almost reverently, she undid the button of his jeans, her fingers trembling with anticipation.

The zipper dragged down, the sound impossibly loud in the charged silence.

When she reached in and wrapped her hand around him, her breath caught eyes widening as she felt just how heavy, how thick he was in her grip.

"... Fuck," she whispered, unable to stop herself from stroking him slowly, her thumb grazing over the leaking tip she freed from his boxers. "No wonder Emily's so quiet all the time."

Stefan let out a low chuckle, but it was strained her soft, deliberate strokes making his control fray at the edges.

"You're the one with a hand on my cock," he murmured, his voice rough. "So what does that say about you?"

Dina's cheeks burned hotter, but she didn't stop. If anything, she tightened her grip, dragging her fist down his length as if testing just how much trouble she was getting herself into.

"... Says I'm already too far gone," she muttered, her voice trembling with arousal.

Stefan's hand slid higher up her thigh, fingers finding the waistband of her jeans.

"Off," he ordered, his tone leaving no room for argument.

For a split second, pride flared in Dina's chest she wanted to keep control, to keep teasing him.

But the throbbing between her legs was louder than her ego.

With a sly smirk, she lifted her hips, allowing Stefan to yank her jeans down taking her panties with them in one rough motion. The cool air kissed her soaked folds, making her shiver.

Stefan's gaze dropped, and a dark groan escaped him as he took in the sight her thighs glistening, her pussy practically begging for attention.

"Fuck..." he muttered, sinking to his knees before her like a man worshipping at an altar of sin.

He parted her legs wider, his large hands dwarfing her petite frame, thumbs spreading her open so he could see every inch of how drenched she was.

"This wet for me?" he growled, his breath hot against her inner thigh.

Dina swallowed hard, her fingers gripping the edge of the table for balance. "No," she lied, though her voice betrayed her.

PING.

The sharp sound sent a shiver down her spine but before she could say anything else, Stefan's mouth was on her.

His tongue dragged through her folds with a slow, deliberate stroke, tasting her like he'd been starving for it. His stubble scratched against her sensitive skin, a delicious contrast to the wet heat of his mouth.

Dina's head fell back, a broken moan spilling from her lips as her hips instinctively rocked against his face.

All thoughts of Mark... of Emily... of consequences gone.

All that mattered was Stefan's tongue, the filthy sounds of him devouring her, and the fact that this was only the beginning of how ruined they were about to be.

Dina gasped sharply, her head falling back against the chair with a soft thud as Stefan's tongue dragged a long, slow stroke through her folds deliberate, savoring, like a man committing every taste, every tremor of her body, to memory. Not just the taste of her arousal but the taste of betrayal. Of everything they weren't supposed to be doing.

His large hands gripped her thighs, fingers digging into soft flesh as he spread her open wider, holding her in place like he owned her now. The contrast between his strength and her petite frame only made the heat between her legs burn hotter.

"F-fuck..." Dina whimpered, her breath hitching as his tongue circled her clit lazy at first, like he had all night to ruin her.

But she knew better.

Stefan wasn't just eating her out he was punishing her. For teasing him. For denying what they both wanted. For pretending they weren't both aching for this every second they'd been alone together.

When his lips wrapped around her clit and sucked hard Dina cried out, her hips jerking off the chair before his grip slammed them back down.

"Stay still," Stefan growled against her, the vibration of his voice sending a shockwave through her core.

Her hand shot down, tangling in his dark hair, nails scraping against his scalp as if grounding herself but really, she just wanted him closer. Needed him deeper.

"God Stefan..." she whimpered, her voice cracking under the weight of sensation. The stubble on his jaw scraped deliciously against the sensitive skin of her inner thighs, a constant reminder of exactly who was on his knees between her legs.

Stefan groaned into her, tongue flicking mercilessly over her swollen clit, alternating between slow, torturous circles and sharp, focused flicks that made her legs tremble. Every sound she made, every gasp and moan, only spurred him on like he wanted to see how fast he could unravel her completely.

Her hips bucked again, chasing his mouth, but Stefan's grip tightened bruisingly on her thighs.

"Desperate already?" he murmured against her soaked pussy, his breath hot and sticky against her skin. He pulled back just enough to look at her his chin glistening with her arousal, dark eyes gleaming with something primal. "Mark never eats you like this, does he?"

Dina's chest heaved, her cheeks flushed deep crimson as she tried tried to hold onto some semblance of control.

"He " she started, voice barely holding steady.

"No," Stefan cut her off with a dark smirk, his fingers replacing his tongue before she could even process the machine's inevitable response.

PING.

Two thick fingers slid into her soaked heat without resistance, curling expertly against that spot that made her vision blur. Dina's head fell back again, a loud, broken moan tearing from her throat as her back arched off the chair.

"Fuck Stefan " she gasped, her nails digging into the edge of the table now, knuckles white from the effort of holding herself together.

But Stefan wasn't giving her that luxury.

His fingers pumped into her slowly at first, savoring the way her walls clenched around him, but soon picked up a punishing rhythm every curl making her toes curl and her thighs quiver.

"You feel that?" he growled, his thumb pressing down hard on her clit, rubbing tight circles that had her teetering on the edge in seconds. "This is what you've been craving. Pleasure. Me."

Dina could barely form words her breaths coming out in ragged, high-pitched gasps as she felt the orgasm building fast, threatening to tear her apart.

And just when she thought he'd let her fall over the edge, Stefan stopped.

He pulled his fingers from her soaked pussy with a wet sound that made her whimper in frustration, her body trembling from being denied release.

Her hazy, lust-filled gaze snapped to him, ready to curse him out but the words died in her throat when she saw what he did next.

Stefan dragged his slick fingers up to her lips, smearing her own arousal across them before tapping insistently at her mouth.

"Taste how much you love this sensation of cheating," he whispered, voice low and commanding.

Dina's heart pounded in her chest, shame and desire warring inside her but she didn't hesitate. Her lips parted, and she wrapped them around his fingers, sucking them clean with slow, deliberate strokes of her tongue never breaking eye contact.

The look in Stefan's eyes darkened dangerously, a guttural groan vibrating in his chest as he watched her tongue swirl around his digits like the filthy little sinner she'd just proven herself to be.

That was it. Whatever thread of restraint he had left snapped clean in two.

Stefan stood abruptly, grabbing Dina by the waist and yanking her out of the chair. She let out a startled gasp as he spun her around and bent her over the table the same table where they'd built their careers, their success now nothing more than the surface where he was going to ruin her.

He didn't bother with pretense or patience anymore.

Her tank top was shoved up over her back, exposing the soft curves of her waist and the arch of her spine. His large hand tangled in her red hair, yanking her head back so her cheek pressed against the cool surface of the table.

His other hand gripped the base of his cock big, thick, hard, and leaking as he lined himself up against her dripping entrance.

"Tell me you want this," he growled, the head of his cock nudging against her folds, teasing her with the stretch she knew was coming.

Dina's breath came out in shaky pants, her fingers clawing at the table as her mind screamed at her about everything they were destroying.

"... We shouldn't," she whispered, her voice trembling not from fear, but from how badly she needed him to ignore that.

Her hips pushed back instinctively, seeking him out, her body betraying her better judgment yet again.

Stefan's grip in her hair tightened, a dark chuckle rumbling from his chest.

"That's not what I asked."

"... I want it, okay i do" she choked out, her voice raw with desperation and lust.

That was all he needed to hear.

The moment the words left her mouth, Stefan didn't hesitate not for a second.

With a brutal thrust, he slammed into Dina from behind, burying his thick cock to the hilt in one stroke that forced a strangled cry from her lips. The sudden, overwhelming stretch stole the air from her lungs, her nails clawing at the table as her petite body struggled to take him.

"Fuck!" Dina gasped, her voice high and wrecked, toes curling as her pussy clenched reflexively around the sheer size of him.

Stefan groaned, his head dropping back for a moment as he felt her tight, wet heat gripping him like a vice.

"Shit, Dina... you're way tighter than I imagined," he growled, his hands gripping her hips so hard she'd wear the bruises for days. "No way Mark fucks a pussy like this."

Dina's cheeks flushed deeper, but the filthy praise only made her wetter, her body betraying every ounce of guilt she should have felt.

"Maybe you're just bigger than he is," she shot back breathlessly, her voice trembling from the force of his next thrust.

Stefan let out a dark, guttural laugh, pulling almost all the way out before slamming back into her, making her cry out again.

"Damn right I am," he snarled, setting a relentless pace his hips snapping forward, the sound of skin slapping against skin echoing in the room like a symphony of sin.

Each thrust sent shockwaves through Dina's body, her breasts pressed against the cold surface of the table, her cheek flush against it as she gasped for air between moans.

Her mind blurred with every brutal stroke, but not enough to block out the truth this wasn't just fucking. This was betrayal at its purest. And God, it felt too good.

"You feel this?" Stefan hissed, yanking her head back by her red hair, forcing her to arch for him, her back curving perfectly under his grip. "This is what you fantasize about when you watch those slutty videos, isn't it? Getting ruined by a cock that's not your boyfriend's?"

Dina's eyes fluttered shut, a shiver racing down her spine as her pussy clenched around him desperately.

"Yes!" she sobbed, her voice cracking under the weight of her confession.

"Cheating on Mark like a filthy little slut," Stefan continued, his words as ruthless as his thrusts each one slamming home so deep she could feel him in her stomach.

"Yes fuck, yes!" Dina gasped, shame and arousal crashing over her in equal waves.

Stefan's hand slid from her hair to her throat, wrapping around it and squeezing just enough to make her pulse race faster, her breaths coming in short, desperate pants. His grip wasn't cruel it was possessive. Like he owned her now, body and soul, at least for this night.

"You really enjoy this don't you," he growled against her ear, his teeth grazing her lobe. "Not some weak-ass boyfriend who doesn't know how to use you. You needed someone to give you more in secret."

Dina's legs started to tremble, her walls fluttering around him as the orgasm built dangerously fast too fast.

But Stefan wasn't done corrupting her.

Feeling her legs give way, he pulled out suddenly, his cock slick and throbbing as he spun her around with effortless strength. Her dazed, flushed face barely registered before he dropped into the chair behind him, stroking himself slowly dark eyes raking over her ruined form.

"Ride me," he ordered, his voice rough and breathless.

Dina didn't hesitate. She climbed onto him like it was second nature like she hadn't spent two years pretending she didn't want this. Straddling his lap, she reached back, guiding his thick cock to her entrance before sinking down with a guttural moan that filled the room.

Her head fell back, red hair cascading down her shoulders as she adjusted to the overwhelming stretch all over again.

"Fuck... you're even better like this, so much bigger..." she panted, her hands bracing against his chest as she started to move slow at first, savoring the way he stretched her out, made her feel full in a way Mark never had.

Stefan's hands gripped her hips, fingers digging into soft flesh as he watched his cock disappear inside her over and over, mesmerized by the sight of her petite body taking every inch.

He leaned in, his lips brushing against her ear. "Emily ever this tight and wet for you?" he rasped, his voice dripping with venomous lust.

Dina smirked through her gasps, throwing his words back at him with a wicked glint in her eye.

"Admit it i feel better then Emily don't i ..."

Stefan groaned, his grip tightening, snapping his hips up to meet her downward thrusts, forcing a shocked cry from her lips.

"You feel better than she ever did," he growled, slamming her down harder, loving how easily she fell apart for him. "So tight... like your pussy knows it was meant to ride this dick."

Dina's walls fluttered at the filthy words, her body betraying her again, the pleasure too intense to deny.

"You fuck better than Mark ever could," she gasped, grinding her hips down, desperate for friction. "No wonder Emily's must have been so boring you've been saving all of this for me."

"This is so wrong we must stop."

PING.

The machine lit up, catching the lie in her tone because deep down, she knew this wasn't just sex. This was something they both wanted long before tonight.

Dina ground her hips harder, riding Stefan like she owned him like she'd been waiting for this exact moment to break every rule. The way he filled her was addictive, dangerous, and she could feel every throb of him deep inside, getting harder with every bounce of her hips.

"Fuck, Dina..." Stefan groaned, his hands gripping her waist so tightly she'd have marks tomorrow. His head fell back, eyes dark with lust and something filthier. "You feel too fucking good... Better than Emily ever does."

That wicked smile curved Dina's lips as she leaned in close, her breath hot against his ear. "Yeah? I can feel it... You're getting even harder for me, aren't you?" She rolled her hips slow, deliberately milking him, gasping at how thick he felt stretching her. "Poor Emily has no idea what she's missing..."

Stefan's jaw clenched, a guttural sound escaping him as he thrust up into her, chasing that high. "Mark doesn't deserve this pussy," he growled, his voice rough and venomous with lust. "He never reached this deep in you."

Dina's laugh was breathless, trembling on the edge of a moan. "He didn't. That's why I'm here, Stefan... Taking every inch of you while my boyfriend's at home." Her nails raked down his chest, her pace quickening as the pressure coiled deep in her belly. "You love it, don't you? Knowing I'm riding you raw, cheating on him just because your cock feels too good..."

"Yeah, I fucking love it," Stefan snarled, meeting her thrust for thrust, his eyes locked on hers dark, possessive. "Fuck Dina you feel so good."

That was all it took.

Dina's body tensed, her head thrown back as a sharp cry tore from her throat. Her orgasm crashed over her, her walls clenching desperately around Stefan's fat cock, milking him as she came hard soaking him, shuddering through every wave of pleasure.

"God fuck, Stefan!" she gasped, hips stuttering as she rode out her release, the aftershocks making her thighs tremble.

Stefan felt his release building fast the way she squeezed him, the sight of her using his cock like a toy, and the constant thrill of knowing they were both too far gone to care who they were betraying.

"Get off," he commanded, his voice strained and dark.

Dina didn't argue she slid off him, breathless and flushed, her thighs still trembling from the orgasm he'd just pulled out of her. Without hesitation, she dropped to her knees between his legs, looking up at him with those wide, wicked blue eyes that sparkled with sin.

Her hand wrapped around his slick, throbbing cock, stroking him slow teasing, knowing exactly how close he was. She let her tongue glide over her lips, a filthy little smile curling as she angled her face up to him.

"Finish on my face," she whispered, her voice hoarse and dripping with need. But then she leaned in, her grip tightening, her words turning sharper deadly sweet. "I want you to see what you've done to me."

Stefan let out a low, broken groan, his hips twitching into her fist. His control was hanging by a thread, and she could feel it feel the way he pulsed in her hand, seconds from ruin.

Dina's smile deepened, dark and victorious. "Come on, Stefan... Don't you want to cum for me? Make me like a good little slut?" Her thumb dragged over his tip, spreading the leaking precum across his flushed head as she inched closer, her breath hot against him. "Emily would never let you do this. She's too sweet, too proper."

She dragged her tongue along his length, slow and deliberate, before pulling back just enough to meet his eyes watching the guilt and lust war inside him.

"But me?" Her voice dropped to a sultry purr, her strokes quickening just enough to make his thighs tense. "I love how wrong this is. I love knowing you'd rather defile me than go home to your boring little girlfriend." She giggled, breathless and cruel. "Tell me, Stefan... does Emily ever make you this desperate? Does she ever beg for your cum like I do?"

He cursed under his breath, his hands fisting in the sheets, fighting a losing battle against the wave crashing over him.

Dina didn't let up she wanted to watch him fall apart. "Look at me," she commanded softly, licking her lips again, eyes gleaming with wicked delight. "Look at how much better I am for you. I take everything you give me... and I want it. You know you'll be thinking about this when you're with her. You'll be wishing it was me on my knees instead."

She opened her mouth slightly, stroking him faster now, her breath coming in shallow pants as she watched him unravel.

"Please, Stefan," she whispered, her voice trembling with mock-innocence, laced with filth. "Give it to me... Make a mess of me. Show me how much better I am than her..."

"You feel guilty?" she asked, her tone mockingly sweet as she leaned in closer, her breath ghosting over his thighs. "Knowing Emily's probably wondering where you are... while you're here, about to cum all over my face?"

Stefan's head fell back for a moment, a guttural curse slipping past his lips as the image she painted seared itself into his brain.

Dina giggled giggled like this was nothing more than a game, even as her own arousal dripped down her thighs.

"You're filthy, Stefan..." she whispered, dragging her tongue across her bottom lip, her blue eyes gleaming with sadistic pleasure. "You love this. Love knowing I'm gonna walk out of here with your cum on my skin... thinking about how much better you feel than Mark ever did."

Her hand slid up his calf, nails grazing his skin as she knelt even closer, her breath hot against his cock now.

Stefan's abs tightened, every muscle in his body coiling as he stared down at her--this petite, dangerous redhead who'd dragged him into hell with her and made him thank her for it.

"You're not any better," he growled, his voice strained, his hand a blur now as he chased the edge. "Begging for a cock that's not your boyfriend's... letting me fuck you."

Dina moaned softly at his words, her fingers dipping between her legs again, circling her clit as if proving just how much she loved hearing it.

"I did cheat on him but so did you, on her..." she whispered, her voice shaking with arousal and pride. "And you're no better... you loved ruining me tonight."

That was it.

Stefan stood abruptly, towering over her, his chest heaving as his hand worked his slick, throbbing cock desperation etched across his face. Veins bulged along his forearm, knuckles white from the force of his grip, as he chased the inevitable. His tip was flushed, leaking, seconds away from giving in.

Below him, Dina knelt like a vision of pure corruption, flushed, and utterly shameless. She tilted her head back, her red hair wild around her shoulders, strands already sticking to the sweat on her skin. Her blue eyes locked onto his with a gleam that was equal parts defiance and depravity.

Then she stuck out her tongue slow and deliberate letting it rest over her bottom lip, mouth open in silent invitation. She looked obscene, like she belonged there, waiting for him to paint her in sin.

Her cheeks were flushed pink, her pupils blown wide with lust, but there was something else too that thrill of knowing exactly how filthy this made her. She wanted to wear it. She wanted to feel every drop of his betrayal dripping down her skin.

"Fucking take it..." Stefan growled, his voice breaking, raw with need and disgust at her, at himself. His vision blurred as his orgasm tore through him, unstoppable.

With a guttural, animalistic sound, he came thick, hot ropes of cum erupting from him, splattering across Dina's eager face. The first shot struck her high on the cheekbone, glistening like a mark. The next hit square on her tongue, trailing down to her chin, while more painted her lips and jaw, dripping in obscene streaks.

It felt endless like his body was determined to empty every last drop onto her. Each spurt branding her, claiming her, turning her into a canvas of their shared corruption.

Dina moaned a raw, needy sound vibrating from deep in her throat as the heat of him coated her. She didn't flinch. She welcomed it, her fingers already circling her clit frantically, using the filth as fuel. She let her tongue dart out to catch the taste of him, savoring the salt and sin.

"Fuck... yes..." she gasped, her voice trembling with unrestrained pleasure. Her hand rose, smearing his release across her cheek and down her neck, dragging it lower like she wanted to bathe in it. The pearlescent sheen glazed her face, catching the faint light her lips swollen, glistening, parted in a breathless, wicked smile. "God, I'm so fucking filthy..."

Stefan's stomach twisted not from regret, but from how good it felt to ruin her like this. His big cock twitched in his fist, already aching again at the sight of her kneeling there, dripping with his cum, looking like the embodiment of every dark thought he'd ever had.

He felt sick. He felt powerful. And worst of all he felt addicted.

The raw image of her debased, breathless and grinning through the mess, was enough to push Dina over the edge. With a sharp cry, her body snapped taut, her thighs quivering as her orgasm slammed into her like a freight train of guilt-laced ecstasy.

Her hips jerked helplessly, fingers working herself through every shuddering wave. Her free hand clawed at Stefan's thigh, nails digging into his skin like she needed to anchor herself to reality though neither of them could pretend they hadn't left that far behind.

Her mind blanked beneath the crash of pleasure, but as her vision cleared, one damning thought lingered, seared into her bones:

I'll never be able to stop wanting this.

For a long, heavy moment, neither of them moved.

The air was thick humid with sweat, sex, and the undeniable stench of betrayal. The soft hum of the machine nearby cast an eerie glow over the wreckage they'd made of themselves. It illuminated Dina's ruined form cum-streaked, flushed, her chest rising and falling in uneven gasps. She looked up at him like she'd never felt more alive... or more damned.

Stefan stared down, his heart hammering in his chest, his cock still half-hard despite the release he'd just poured onto her skin. He should've felt shame. Maybe he did. But it was buried beneath the pulse of satisfaction at how thoroughly he'd defiled her.

Dina finally lifted a hand, dragging a fingertip through the mess coating her lips. She held his gaze as she slid it into her mouth, sucking it clean with a slow, obscene swirl of her tongue like she was tasting victory itself.

When she spoke, her voice was soft almost gentle but the weight behind it was undeniable.

"This never happened..." she whispered, the words a hollow lie that neither of them could believe.

Because the truth was written across her face slick, shining, and unforgettable.

Neither of them moved to clean up. Neither reached for their clothes. The guilt pressed in around them like a velvet noose tight, suffocating, but sweet in its own twisted way.

Then buzz.

Stefan's phone lit up on the table, the harsh glow cutting through the thick haze of sex and sweat.

Emily.

Her name flashed across the screen like fate's cruel reminder sharp, inescapable. The weight of reality slammed back into him, heavier than before. The woman he was supposed to love... texting him while her boyfriend's cum slowly dried on another woman's face.

Dina's gaze flicked toward the phone, catching the name instantly. She let out a low, breathless laugh a sound soaked in wicked amusement and something close to pity. Not for him, but for the game they were both now playing.

She dragged her fingers along her cheek, smearing a bit of the drying mess like it was makeup, before glancing back up at Stefan with those dark, knowing eyes.

"... You gonna answer that?" she purred, her voice dripping with mock innocence, though her smirk betrayed her. "Wouldn't want sweet Emily getting suspicious, would we?"

Stefan clenched his jaw, his stomach knotting as the screen dimmed only to buzz again immediately after. Another message.

He grabbed the phone, thumb swiping over the screen to reveal the texts.

Emily: Hey babe, don't forget we have dinner with my parents tonight. You said you'd confirm the time. Let me know, okay? ❤️

Emily: Everything okay?

His pulse quickened. If he didn't reply now, she'd call he knew she would. Emily never let things sit when she felt something was off. And the last thing he could afford was to answer a call with Dina still kneeling naked in front of him, wearing his cum like a badge of dishonor.

He started typing, fingers stiff and clumsy. His mind scrambled for something normal something that didn't reek of guilt.

Dina watched him, her head tilted, that sly smile never fading. "What are you gonna tell her?" she asked sweetly, crawling forward just enough to let her breath ghost over his still-sensitive cock, the proximity making him twitch.

Stefan didn't look at her. "I'm telling her I'll pick her up at nine," he muttered, forcing his voice to sound detached, unaffected.

PING.

The machine's soft chime echoed through the room mocking him. The truth detector never missed a beat.

Dina's laughter was immediate, low and sultry, like velvet wrapping around a knife. "Liar..." she sang, her voice thick with delight. She dragged a fingernail up his thigh, dangerously close to getting him hard all over again. "What are you really telling her, Stefan?"

He swallowed hard, his face tight as he finished typing.

Stefan: Yeah, all good. Just been busy. I'll pick you up at 9 ❤️

But they both knew he hadn't been "busy." He'd been buried inside Dina, listening to her moan his name while betraying everything that text pretended to protect.

Dina leaned in closer, her lips brushing against the head of his cock, not to pleasure him but to torment him. "You should tell her," she whispered, her breath hot and sinful. "Tell her you were too busy cumming on my face to reply..."

Stefan's grip tightened around the phone, knuckles white. He could feel the blood rushing south again, his body betraying him just as much as his actions had.

Dina giggled softly, licking a stray drop of him from her lip. "God, you're so easy, Stefan. One little taste of me and you're ready to ruin your whole life." Her eyes flicked to the machine, then back to him with a wicked glint. "How many more lies are you gonna tell tonight, hm? To her... or to yourself?"

His phone buzzed once more in his hand Emily sending a final confirmation.

But Stefan didn't look at it. Not when the real temptation was kneeling in front of him, still painted in his sin, smiling like she wanted to be caught in it forever.

He let his gaze rake over Dina, taking in every filthy detail the way his cum dried across her flushed skin, the satisfied gleam in her eyes, the casual confidence of a woman who knew she'd crossed a line and didn't regret a single step.

A smirk curved his lips, sharp and dangerous. "So..." he drawled, breaking the thick silence, "what are you gonna tell Mark when you get home?"

Dina's grin widened instantly like she'd been waiting for him to ask. She sat back on her heels, stretching her arms over her head, completely unbothered by how debauched she looked. If anything, she relished it.

"Tell him?" she echoed, feigning innocence as she dragged a fingertip through a smear of cum on her collarbone. "Please, Stefan. Do I look like a girl who confesses?"

Her tongue flicked out to taste the mess on her finger, slow and deliberate, never breaking eye contact.

Stefan chuckled darkly, leaning against the table, arms crossed watching her like she was both the crime and the punishment. "No," he admitted, his voice low and edged with heat. "You look like a girl who's gonna crawl into his bed still dripping with me... and pretend you're clean."

Dina laughed a sultry, wicked sound that filled the room like smoke. "Exactly." She shifted onto her knees again, crawling a step closer, her eyes gleaming with corruption. "I'll keep this little secret tucked right between my legs. Let him wonder why I'm so wet for him tonight."

Stefan's gaze darkened, his cock already stirring at the thought. "You really are fucking twisted."

"Mmm," Dina hummed in agreement, as if it were a compliment. "And whose fault is that?" She glanced pointedly at his softening cock, still glistening from their earlier sins. "You're the one who made me this way."

He scoffed, shaking his head but the pride in his eyes betrayed him. "Yeah? And what happens when he realizes he can't fill what I stretched out?"

Dina's lips curled into a devilish smirk. She rose to her feet slowly, purposefully letting her body brush against his as she passed, her breath hot against his ear as she whispered, "Then I'll close my eyes..."

She paused, letting the tension hang between them like a noose.

"And imagine it's you fucking me all over again."

Stefan's hand shot out, grabbing her wrist as she moved toward her clothes, pulling her back just enough to speak against her neck his voice a dark promise. "You keep saying that like it's a fantasy..." His lips ghosted over her skin, making her shiver. "But we both know it's a guarantee."

Dina exhaled a shaky breath, her pulse racing beneath his grip but she didn't pull away. Instead, she turned her head slightly, letting her lips graze his jaw.

"Careful, Stefan..." she murmured, her tone playful but laced with warning. "If you keep talking like that, I might forget who's corrupting who."

He released her with a smirk, watching as she sauntered toward her discarded clothes still gloriously naked, still wearing the evidence of him like a trophy.

As she bent to pick up her panties, she glanced over her shoulder, her voice dripping with mock sweetness. "Besides... you've got your own bed to share tonight, don't you?" She nodded toward his phone, still lit up with Emily's messages like a beacon of hypocrisy.

Stefan's jaw tightened, but he didn't deny it.

Dina stepped into her panties, slowly sliding them up over her still-throbbing core, wincing slightly with a wicked grin. "Wonder if Emily will notice how desperate you'll be to fuck her after this..." She let out a soft, knowing laugh. "You'll probably bend her over the second you get through the door pretend it's her making you that hard."

She turned fully now, pulling on her skirt without bothering to clean her face, leaving faint streaks of dried cum along her jawline and neck like she wanted to walk out branded.

"Tell me, Stefan..." she added, buttoning her top with infuriating slowness. "When you're inside her tonight... what name are you gonna be thinking?"

Stefan didn't answer.

He didn't have to.

The tension between them said enough thick, heavy, and laced with the knowledge that this wasn't over. Not even close.

As Dina reached for the door, she glanced back one last time, her blue eyes gleaming with something dangerous and addictive.

"This never happened..." she repeated, her voice a soft, mocking echo because they both knew it was the biggest lie of all.

Stefan watched her leave, the door clicking shut behind her.

And as silence settled over the room thick with the scent of sex and mutual betrayal.