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"What's Your Favorite Scary Move?"

Pairing(s): Sebastian Sallow × Reader (FMC) × Garreth Weasley Words: 4.2k

Summary: You swore—in your letters—that horror bored you. So when the movie ends and a Ghostface voice asks your favorite scary movie, the “prank” that follows is anything but boring.

Warnings: NSFW. Explicit sexual content · All characters 18+ · Threesome (M/F/M) · Praise kink · Double penetration (vaginal + anal) · Anal sex · Oral sex (m→f) · Edging · Dirty talk · Light restraint/holding in place · Light choking · Home-intrusion prank set-up (revealed, consensual roleplay) · Power dynamics (commanding Sebastian, playful Garreth) · Aftercare · No protection

A/N: I wrote this for Sebtober in @authorellasallow's server. It’s Ghostface-inspired shenanigans that turn into a threesome with my favorite duo. Thanks for reading and happy Sebtober! 💙

The quiet of your living room, usually a comfort, had become a suffocating presence after the horror movie credits rolled. Darkness seemed to press in, and every shadow felt like a watchful eye. You, a woman who paid rent, held a job, and carried pepper spray, weren't one to easily spook. Yet, here you were, flipping on lights and double-checking locks before the final scene had even faded from the screen.

Living alone had its undeniable perks—the quiet, the independence, the freedom to wander in an oversized T-shirt and no pants. But in this moment, the silence was deafening, and every room seemed to watch you with an unnerving stillness. You patrolled the house: the front door's deadbolt was latched, the kitchen's side door locked, the sliding glass to the backyard secure. Windows? All shut and locked.

It wasn't paranoia, not truly. Just caution. After everything you'd walked away from, a little overkill was more than justified. You used to be someone else, not in the celebrity way, but the kind of person ancient families, burdened with too much power and too little conscience, kept tabs on. When your ancient magic had emerged, your world had turned upside down. You became a target, a secret, a weapon some craved and others sought to eradicate.

So, you vanished. You left it all—the wand, the robes—and fled to the Muggle world, a place where your greatest worries were credit scores and the occasional forgotten chicken defrost. Mostly.

Satisfied that every possible entry point was secured, you collapsed back onto the couch, phone in hand, and took a deep breath.

Then it rang.

An unknown number.

You stared at the screen, your thumb hovering, before answering without much thought.

"Hello?" you said.

Silence stretched for a second, then static crackled through the line, followed by a low, distorted voice that sent a shiver down your spine.

"What's your favorite scary movie?"

You sat up straight, a surge of adrenaline hitting you. "Okay, no. Not tonight."

"Come on, sweetheart," the voice crooned. "I just want to play."

You quickly hung up, your heart pounding against your chest. Maybe it was just a prank, some loser with a voice modulator app. But a knot of dread tightened in your gut. You stood, half-expecting to laugh it off, but your feet carried you back to the back door anyway…

Still locked.

Then, the lights died. The TV cut out. The fan stuttered to a halt. The entire house plunged into an unnatural silence. Your thumb trembled as you fumbled for your phone's flashlight. The weak beam illuminated almost nothing. You forced yourself to breathe. Just a coincidence. Just your imagination running wild.

"I can see you."

The voice wasn't coming from the phone. It was inside the house.

You ran. No time to think, no time to look back. Your socks slipped on the hardwood as you scrambled up the stairs, your legs moving faster than your brain could catch up. You slammed the bedroom door behind you and twisted the lock, backing away fast.

The house went still once more.

Too still.

You grabbed the closest heavy object—a lamp—and raised it in both hands, your fingers clenched tight around the base. Floorboards creaked just outside the door. You held your breath. Another step. Slower this time. Whoever was out there didn't need to hurry. They already knew exactly where you were.

The doorknob rattled once.

Then again, harder.

You gripped the lamp tighter.

Silence.

A sudden, loud crack. The lock broke. The doorknob turned slowly, and the door creaked open on its hinges.

Two figures stepped into your room. Tall. Dressed in black robes. Their faces hidden behind those unmistakable white Ghostface masks. Their empty eyes seemed to stare straight through you.

They moved with an unsettling calm, as if they had all the time in the world. One lifted a gloved finger to his mask and pressed it to where his mouth would be. Shhh.

You raised the lamp and swung. A fast, strong hand caught your wrist midair.

“Feisty,” rasped the distorted voice.

The other tilted his head and let out a laugh that cracked at the edges. He drifted toward your dresser, gloved fingers tracing along the wood with a familiarity that made your stomach twist.

“Merlin,” you breathed, barely a whisper.

The figure gripping your wrist leaned in. “Guess again.”

You stumbled backward until the backs of your knees hit the bed. No escape. The second Ghostface lingered just a few feet away, pacing slowly, relishing the moment. The one in front of you tilted his head, that broken modulation flickering as he spoke again.

“Surprise, Y/N.”

You blinked—and the nearer mask came off. Red waves spilled forward.

Garreth.

Of course it was Garreth Weasley. That boyish grin was already blooming across his freckled face, green eyes alight with mischief, proud as ever of his theatrics.

“Hi,” he said breathlessly. “You scream like a final girl. I mean that as a compliment.”

“Garreth?!” you choked out. “What the actual fuck?!”

Behind you, the second Ghostface stayed silent. The quiet between you stretched until curiosity—or something else—got the better of you. You reached up and tugged the mask free yourself.

Tousled brown hair. Flushed cheeks. Brown eyes, darkened and burning from the adrenaline. Sebastian Sallow.

He didn’t smile.

Garreth lifted both hands. “I told him you could handle it.”

You just stared at them. Two fully grown men, standing in your bedroom, in full Ghostface cosplay.

"You two are insane," you hissed.

Garreth's grin widened. "You said horror movies were boring in your letters. So, we made this one... personal."

"I thought I was going to die."

"I know,” he chuckled. “You nearly broke my face with a lamp. My whole life flashed before my eyes."

That earned him a look. "Not the time."

You turned to Sebastian. "And what's your excuse?"

He didn't break eye contact. "I mean you looked… scared. But there’s a different look in your eyes now."

He was right. The moment the pair had revealed themselves, the adrenaline quickly was replaced by heat. Your legs bumped the back of the bed frame as you remembered where you stood.

Garreth's gaze dipped to the hem of your shirt, to where the cotton barely covered your thighs. He was still smiling, but there was nothing innocent in it anymore.

He looked at Sebastian. Just for a second. A silent question. Sebastian gave a single nod. That was all it took. Garreth closed the distance between you. One of his hands caught your waist, the other came up to cradle the side of your face, his thumb brushing just under your cheekbone.

"You're okay?" he breathed.

You nodded before the word could even form.

"Good," he said—and kissed you.

The kiss was packed with all the hunger and pent-up tension that had nowhere else to go. His hand tightened on your waist, pulling you in like he needed to feel every inch.

You gasped against his mouth, and he groaned like the sound you made undid him. His other hand slid up into your hair, tipping your head back as he deepened the kiss. His hips pressed forward, just enough to let you feel the shape of him under his robes.

Still, you didn't dare look away from Sebastian. You looked at him through heavy lidded eyes. He was still just watching. But his jaw was tight, and his eyes—God, his eyes—burned.

He hadn't touched you yet, hadn't even moved, but he was everywhere. In your head, in your body, in the space between each kiss Garreth poured into your mouth.

Then he spoke. "On the bed."

Garreth pulled back just enough to glance at you. His hand slid down, brushing the back of your thigh, coaxing gently.

"She's already there," he said, his eyes flicking down to your legs. "Look at her. Bed's begging for her."

"Not sitting on it," Sebastian murmured. "On it."

He wasn’t being cruel—just commanding. There was a certainty to the way he spoke that made your knees shake. You turned without a word and crawled onto the bed.

The silky pink sheets were cool against your skin. You sat back on your elbows, legs bent, your shirt tugged higher over your hips from the movement. You could feel the air hit the skin just above your panties, and you didn't even try to fix it.

Garreth let out a shaky breath. "Fuck."

Sebastian didn't speak. But he moved. He came to the edge of the bed, standing tall enough that you had to look up through your lashes to meet his gaze. His hand brushed your ankle. Then your shin. Then up, slowly, to your knee.

"Good girl," he said.

Sebastian's fingers trailed higher, making sure to trail with maddening care. Up your thigh, to the soft crease where your leg met your hip. His touch stopped there, his thumb brushing the edge of your panties like he was testing how long you'd last.

Garreth moved in at the same time, slipping onto the bed beside you like he couldn't stay away a second longer. His eyes were wild now—in that way only Garreth Weasley could be, like chaos was the only language he spoke fluently.

"Think she's still scared?" he murmured.

Sebastian didn't answer.

Garreth grinned. "No, not like that, huh? She's shaking, but not 'run away' shaking. This is more like—" His fingers hooked the waistband of your panties and tugged, not enough to pull them down—just enough to make you gasp. "—'don't stop' shaking."

His hand snaked around the front of your waist and slid between your thighs like he'd been waiting his whole life for this. Two fingers pressed along your slit through the fabric, and the sound he made when he felt how wet you were was downright filthy.

"Holy shit," he breathed. "She's soaked."

You moved into his touch. Sebastian's hand caught you before you could move too far, one palm splayed flat on your sternum. He pushed you gently, not forcefully—but firm enough that the command was clear. Stay.

Sebastian’s hand then moved up, slipping under your shirt with ease. His calloused fingertips swept along your ribs.

"You're not wearing a bra," he murmured.

Garreth's mouth was on the inside of your thigh now. He pressed kisses between the strokes of his fingers. He mouthed over your skin like he was tasting it.

Sebastian's thumb grazed the curve of your breast, while the rest of his hand spread across your chest like it belonged there.

"You like him touching you like that?" Sebastian asked, low beside your ear. "All worked up and messy with his fingers on your panties?"

You whimpered.

He gave your breast a squeeze, fingers catching your nipple in a rough flick that made your breath stutter.

"She does," Garreth answered for you, muffled against your thigh. "She's shaking so much, it's like her body's begging. I haven't even taken her panties off yet."

Sebastian's mouth brushed your ear. "Then do it."

Garreth didn't need telling twice. He sat up just enough to hook his fingers under the waistband again, dragging your panties down slow. He kissed each inch of exposed skin like it was part of some ritual, his hands trailing behind the fabric until he had them off and tossed somewhere behind him.

"Fuck, you're beautiful."

His fingers went right back to where they'd been, this time with nothing in the way. He groaned as he touched you, his thumb circling your clit.

"Look at her," he whispered. "Look at how she opens for it."

Sebastian did. His fingers slipped higher, brushing both nipples now. His touch was calculated. He didn't move faster when you whimpered. He didn't rush when your back arched. He just kept going, drawing it out.

"Let her get close," he told Garreth. "But don't let her come."

Garreth's grin turned feral. "Oh, you're cruel."

"She likes it," Sebastian said.

And you did.

God, you did.

You didn't know where to focus. Garreth's fingers kept circling your clit with just the right pressure, just the right speed. Every time your hips lifted into the motion, he eased off, mouthing soft curses against your skin like he was doing it for your own good.

Sebastian's hands stayed on your chest. His fingers brushed over your nipples again and again, rolling his thumbs against them. He watched your face while he did it—like he was studying how your body reacted under his touch.

"You're close," he said.

You nodded, breath hitching.

Garreth pressed a kiss to the inside of your thigh. "She's dripping. My hand's soaked."

"Don't let her come," Sebastian said again.

Garreth groaned, almost whining. "She looks desperate."

"She can take it," Sebastian said. His hand slipped up to your throat, fingers wrapping gently around it. His thumb traced just under your jaw. "Can't you?"

You nodded again—barely.

Sebastian leaned in, kissed you like he was rewarding obedience. His mouth moved over yours, his tongue sliding against yours until you whimpered into him. His grip on your neck didn't move.

Garreth's pace slowed just as you felt the beginning flutter of release building in your abdomen. You whimpered again, more desperate this time. You rocked your hips against his hand, chasing it. Needing it.

"Ah, ah…" Garreth cooed. "Not yet, sweetheart. I'd get in trouble."

You gasped a little when he pulled away entirely, leaving you throbbing. His hand was wet with you. He stuck his middle and ring finger into his mouth and sucked.

Sebastian pulled back to look at you. "Tell him thank you," he said.

You looked at him dazed. "What?"

"Say thank you," he repeated. "For making you feel good."

Your face flushed hot.

Garreth leaned over you, that wicked grin back in place. "Yeah, say it. I earned it."

You swallowed. Your voice came out soft, but shaky. "Thank you."

Garreth kissed you again—his fingers threading into your hair to hold you there. His mouth was sweet.

Sebastian was still watching. Still touching. He moved down the bed just slightly, his body pressing yours deeper into the mattress. His hand slid down from your neck, over your sternum, then lower—settling just above your belly.

"Pull your shirt off," he said.

You hesitated.

Garreth eased back. "You heard him."

You did. Fingers trembling, you grabbed the hem of your shirt and pulled it up and over your head. It fell somewhere off the bed.

Garreth let out a quiet, "Mmm."

Sebastian's palm flattened over your stomach. "You're beautiful like this."

His hand slipped lower, finally brushing over your soaked center—but not for long. Just a single stroke. A taste. Then he looked at Garreth. "You had your fun."

Garreth blinked, then leaned back, catching his breath.

Sebastian's eyes dropped to yours. "Now it's my turn.” He looked at you before saying, “Turn around. Lie back," he said.

You moved swiftly. Your spine hit the mattress, letting your arms fall limp at your sides. His hand skimmed down your side, then up your inner thigh, stopping just short of where you wanted him most.

He looked at Garreth without turning his head. "Hold her legs."

Garreth blinked. "Seriously?"

"You wanted to help," Sebastian said.

A beat passed. Then Garreth moved, his hands pressed against your thighs, holding them open wide. Your breath hitched. The exposure made your skin burn. You could feel both their gazes on you.

Sebastian dipped his head, yet he didn’t make contact. His finger slid along your entrance, spreading you open to his gaze.

"Mmm, so fucking wet," he muttered, mostly to himself.

Finally, he bent down and pressed a soft kiss low to your stomach. The next one was lower. Then lower.

You gasped when his mouth finally met you. He didn't tease the way Garreth had. He didn't build.

He consumed.

His tongue dragged over your clit, circling perfectly. His grip tightened on your hips, holding you down like he knew you'd try to buck. Like he wanted you to. You moaned—your fingers flying to the sheets like you needed to hold onto something real.

Garreth watched you unravel, one hand still bracing your thigh, the other stroking lazily over your knee.

"Look at her," Garreth whispered. "She's falling apart."

Sebastian didn't stop. His mouth moved with focused purpose, dragging you higher and higher until your whole body was trembling. Your moans turned desperate, your hips twitching against his hold.

You were right there.

Right fucking there.

"Please—" you gasped.

Sebastian lifted his mouth just enough to speak. "Not yet."

You whimpered as he went right back to it, his tongue flicking faster, then slowing again, teasing that edge.

"You're gonna beg," he said against you. "And you're gonna mean it."

Garreth leaned down, his lips at your ear. "Better do what he says, sweetheart."

You didn't know how much longer you could take it—or if you wanted it to stop at all. It was too much. Not enough. Every flick of Sebastian's tongue sent another shiver through your core, and there was no space to breathe, no room to think. Only sensation. Only them.

Garreth's grip tightened just slightly on your thighs, keeping them open, his palm brushing soft encouragements over your skin.

"That’s it," he murmured. "I love watching you squirm."

Sebastian kept going, sucking your clit into his mouth at the exact moment you needed it most. His hand pressed on your stomach, holding you down as your hips jerked. And when you cried out, he growled against you.

"Sebastian—" It tore out of you.

His voice was a whisper against your soaked skin. "Come."

You did. It crashed fast. Your back arched as you gripped the sheets. Your thighs tried to fight against Garreth’s hold but it was useless. You seized up, pleasure crashing through.

Sebastian worked you through every wave, his tongue still relentless, until your cries turned breathless. Only then did he pull away.

Your eyes fluttered open. Garreth was looking at you like you were something unreal.

"Y/N," he spoke roughly. "That was... shit, that was gorgeous."

Sebastian rose slowly, wiping his mouth with the back of his hand. His eyes never left your face.

"You took it well," he said. "Better than I expected."

You couldn't speak yet. Your body still hummed with the aftershocks. But the look you gave him was a challenge. Because even though your thighs trembled, you wanted more.

You barely had time to catch your breath. Sebastian leaned in, framing your face as he kissed you. He tasted like your orgasm. His mouth stole what little air you had left, his tongue sliding over yours with lazy dominance.

"Still with us?" he murmured, his lips brushing yours.

You nodded.

"Good. Now, on all fours… again," he commanded.

You moved quickly, rolling over until you were on your hands and knees, presenting yourself to them.

Garreth's hands found your hips from behind. His fingers traced your waist, then slid lower, over your thighs, your ass, the space between your legs. You sucked in a breath, still hypersensitive.

He lowered himself against your back, his chest pressing into your back as his mouth found your shoulder. He bit lightly—just enough to sting—then soothed it with his tongue.

Sebastian motioned, and you and Garreth both moved just enough for him to slide under. You were now sandwiched between the two, Garreth behind and Sebastian in front, your hands on either side of his face.

"You're dripping even more," Garreth whispered as he plunged his fingers inside your pussy. "Fuck, I love this."

You moaned, your head falling back against his shoulder. Sebastian took advantage immediately—capturing your mouth in another kiss. Garreth's fingers moved, working you from behind, his hips grinding lazily against your ass like he was imagining what came next.

Sebastian pulled back. "You want both of us?"

You barely managed a breathless, "Yes."

Garreth chuckled, removing his fingers. "That's our girl."

"You're going to get every inch," Sebastian said. "And we're not stopping until you’ve taken it all.”

Sebastian tugged at the fastenings of his trousers beneath the robe, easing them open just enough to release his impressive length—long, thick, and rigid. His cock veins stood out along the shaft, the head already slick. He pushed the robe's hem higher over his hips.

"Lie back with me first," he suggested.

You moved eagerly, straddling him. You lowered yourself carefully onto Sebastian, the tip of his cock brushing your entrance. His hands steadied your waist, helping you descend gradually, his thickness parting you and filling you with a stretch.

"Yes, just like that—take me in so beautifully," he praised, his hips lifting slightly to meet you halfway.

Your inner walls hugged him tightly. The robe's texture grazed your skin lightly as you leaned forward over him, your palms pressing against his chest, sensing the strong beat of his heart even through the layers of fabric.

Sebastian's gaze held yours. "Bend further over me now, let your body curve so perfectly—Garreth will love sliding into you like this."

You followed his guidance, arching your back as you folded forward, your breasts nestling against his torso. Your bottom tilted upward naturally, presenting yourself to Garreth, who knelt behind you, lifting his robes to allow him access.

Garreth reached for a bit of saliva, coating his palm before gliding it along his shaft.

"You look amazing," he murmured appreciatively, aligning the head of his cock with your rear entrance.

He eased forward with patience, the initial pressure building until your body relaxed and accepted him, drawing him inside with a smooth glide. You let out a soft moan, the slight burn blending into waves of pleasure as he pressed deeper.

Sebastian remained still within your pussy, but he shifted his hips ever so slightly, enhancing the connection.

"Just like that," Sebastian breathed.

The sensation was profound—two substantial cocks embedded within you, so close that every subtle movement resonated through your core.

"You're doing so wonderfully, taking us both with such grace," Garreth said huskily as he withdrew a fraction before thrusting back in, establishing a steady, sensual pace. His fingers gripped your hips, overlapping with Sebastian's hold, anchoring you securely as he moved.

Your body swayed rhythmically between them, caught in the harmonious push and pull of their motions. Sebastian began to respond, driving upward into your pussy with deep strokes that caressed your most sensitive areas.

"Move with me, feel how good we fit together—you're absolutely stunning like this," he encouraged, a low moan escaping him as your muscles contracted around him in delight.

The room filled with the intimate sounds of your bodies connecting—wet slides and soft impacts—interwoven with your gasps and their appreciative murmurs.

"You feel like heaven," Garreth moaned, his hand trailing up your spine to gently gather your hair, tilting your head back to deepen the arch of your back.

The motion sent a rush of pleasure straight to your center, and you tightened around them both, eliciting shared sounds of approval. Sebastian's hand ventured between your joined forms, his fingers locating your clit once more. "

Let it build, you're so close—your body knows exactly what it needs," he said roughly.

They found a natural rhythm, their thrusts alternating seamlessly—Sebastian plunging deep as Garreth eased back, then switching to create a continuous wave of stimulation that left you breathless and lost in the moment.

Your hands clutched at the sheets again, digging in as the pleasure coiled tighter in your abdomen. The dual penetration amplified everything. Juices flowed freely, easing their movements. Sebastian's breathing grew ragged, his control tested by the grip of your pussy.

"You're bringing me so close—fuck—just like that," he grunted, his hands urging you to ride him with more fervor.

Garreth matched the intensity, his pace quickening as he savored the tight embrace. "This is perfect, you feel like you were made for us," he praised.

The build-up was relentless. Praising words flowed freely from them, fueling your arousal: "You're so responsive, so beautiful in your pleasure," "We love how you take us," "Feel us loving every part of you."

The encouragement tipped you into euphoria, your climax surging through you powerfully, your pussy and ass clenching around their cocks.

Sebastian reached his peak first, his hips stuttering as he drove deep one last time, spilling hot pulses of cum into you. "Yes, that's it—take it, Y/N," he gasped.

Garreth followed moments later, his thrusts slowing before he held still, groaning deeply as he flooded your ass with his seed.

They stayed locked together, their lengths twitching as they emptied completely, leaving you enveloped in their affection.

As the aftershocks fade, you slumped forward onto Sebastian's chest, his arms encircling you protectively. Garreth withdrew slowly, a gentle trickle of his release escaping, but he leaned in to press soft kisses along your shoulder.

"You were amazing," Sebastian whispered, his lips brushing your forehead. "Took us so perfectly."

Garreth smiled, his hand rubbing soothing circles on your back. "That was incredible—ready for more whenever you are. This night is all about you."

But for now, you were content, utterly relaxed and fulfilled, cradled between them as their heartbeats synced with yours. The robes remained tangled around your bodies, a reminder of the playful thrill that started it all.