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anto-pops · 7 months ago

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Sudsy Confessions - Sebastian Sallow x Female!Reader

Summary: As the end of the school year continues to creep up on all of the seventh-year students, Sebastian has thought about what’s to come after graduation shamefully little. He’s equal parts annoyed and worried that he doesn’t know what he wants to do with his life, and he’s even more frustrated that he’s running out of time to tell you how he really feels about you. When a chance opportunity finally presents itself, Sebastian seizes the moment, even if the setting is a little… unorthodox.

Alternatively summarized as Sebastian confessing his long-harbored love for you while you’re naked in a bathtub.

Word Count: 6.8k

Warnings: 18+, aged up characters, explicit sexual content, love confessions, bathtub sex

Full fic can also be found here on Ao3 with more diverse tags :))

It was rare for Sebastian to get so bent out of shape over Quidditch. Especially since it had been an unofficial scrimmage between him and a handful of friends– which he had still won, mind— but it was the topic of discussion that had transpired after the actual event in The Three Broomsticks that had gotten him all hot and bothered, and there was no way around the truth of the matter.

Garreth had brought up graduation.

It was a topic that Sebastian had done his best to steer clear of since he had yet to formulate a plan for himself after Hogwarts. Apparently Weasley would be starting an apprenticeship with J. Pippins at his shop in Hogsmeade, which had warranted a few hesitant congratulations from the rest of his motley group. It was obvious that Leander and Imelda assumed the same thing Sebastian did; that Garreth would probably blow up the shop soon after starting.

Then there was Imelda. Headstrong, resilient, and determined to prove herself. She fully intended on trying out for the Holyhead Harpies Quidditch team after graduation and refused to believe she would do anything but succeed. There was no reason to doubt her at all– she’d always been masterful on her broom and had set new records left and right since Professor Black had reinstated Quidditch again. Sebastian only hoped that he was well out of sight in the event things didn’t go the way Imelda wanted them to.

Leander had taken a bit of a sharp turn somewhere between the start of school and the present moment and apparently wanted to apply to work at the Ministry. Specifically, he’d been talking about joining the Council of Magical Law– evidently finding the power that would come with such a position all too appealing. Sebastian couldn’t help but think it was rather on brand for the Gryffindor to think as much, but his encouragement had been lukewarm all the same.

Though he hadn’t joined them at The Three Broomsticks, it was already known that Ominis was also thinking about working for the Ministry, but with a different motive. He wanted to get more closely involved with the Muggle Liaison Office for reasons that continued to escape Sebastian. Whether it was to learn more about their differences to wizard-kind or to spite his family further, Sebastian didn’t know, but he was frankly inclined to believe the latter.

Then there was you. The enigma, the mystery– the great unknown that had turned his entire world upside down from the moment you’d walked through the Great Hall doors two years ago. He had no clue what your plans were after graduation, and not knowing was slowly eating him alive. It had less to do with being kept out of the loop and more to do with his unspoken feelings for you– feelings that he had been keeping to himself for years now in a bid to keep his friendship with you unmarred. After your tumultuous fifth-year, it had understandably taken some time for the two of you to get back to any semblance of normalcy, and now that graduation was approaching, he couldn’t help but feel like time was slipping through his fingers.

Sebastian’s previously upbeat demeanor had darkened considerably after that conversation, leading him to bail entirely on drinks at the pub in favor of returning to Hogwarts to wallow in self-pity.

He’d moved in absolute silence following his return, a metaphorical rain cloud looming over his head as he’d gone to his dorm to grab his toiletries and a change of clothes before setting off for the Prefect’s bathroom. Friday nights were notoriously quiet now that everyone’s N.E.W.T’s had been completed, and Sebastian relished in the solitude that he always found in the spacious washroom. Sneaking in and using it was well worth the risk if it spared him from more idle conversations with his fellow classmates.

It wasn’t unusual for the door to be locked– due in large part to the fact that it always was– so he undid the latch with his wand and shouldered the door open, barreling into the humid space with the grace of a hurricane. He tossed his items down on the countertop beside the sink and ripped his toothbrush out of his bag, shoving it in-between his lips as he turned the faucet on and rifled around for his bath soaps. Disappointment clouded his mind as his thoughts wandered back to you and the unknown future. It wouldn’t take much more than courage and a slim chance for Sebastian to get his feelings for you off his chest, but his fear of rejection kept him rooted in place. He was certain that at this point, it always would.

“Keep running the water like that and you’ll drain the entire lake,” a familiar voice said from somewhere behind him. Sebastian damn near choked himself with his toothbrush as he whirled around to face the culprit, and then he found himself on the verge of fainting when he realized it was you.

You were lounging in the massive tub with a smile on your face, not at all bothered by Sebastian’s sudden intrusion. Your hair was pinned up off of your bare shoulders in a messy heap, and the brunet stood no chance at concealing his blatant double take when he caught sight of your wet skin. The bulk of your naked body was covered by the scant spread of bubbles, but the tantalizing view of your collarbones had a flush rapidly spreading across his cheeks.

“I– shit– I’m so sorry, I didn’t think anyone was in here,” Sebastian frantically mumbled around his mouthful of toothbrush. Dammit, he sounded like a fool. He ripped the thin stick from his mouth and spun back around to shut off the faucet and hastily gather his belongings from the counter.

“You didn’t really knock to find out, but it’s fine. Don’t rush off on my account.”

Your nonchalant tone made him pause, and he hesitantly lifted his head to stare at your reflection in the mirror. True to your words, you seemed wholly unbothered by his presence, simply continuing to bask in the warmth of the water as the steam wafted up into your face.

There wasn’t a chance in hell he could have anticipated something like this happening.

Almost reluctantly, Sebastian dropped his towel back onto the countertop, instead picking up the paste for his toothbrush before setting to work brushing his teeth. He watched through the mirror as you raked your wet fingers through the free strands of hair that had fallen in front of your face, and the sound of the disturbed water dripping down your arms echoed through the space. “Did you win your scrimmage?” Your eyes never wavered from his in the reflection, and he nodded. “Go out for drinks afterwards?” Another nod, switching to brush the other side of his mouth. “Ominis and Garreth?” Sebastian shook his head. “What, Garreth and Leander?”

He mumbled around a mouthful of foam, “An’ Imelda.”

Your expression pinched into one of confusion as you mused, “I thought you didn’t like drinking with Leander.” Sebastian only shrugged in vague response before bending forward to spit and rinse, trying incredibly hard to not think about how very naked and wet you were presently. He was unsuccessful.

For a brief moment, Sebastian debated on changing into his pajamas and leaving despite having come to bathe, but something possessed him to turn around and contemplate you after he turned off the faucet. The easy smile on your face and your half hooded eyes almost knocked him out, and he swallowed thickly.

What was it he had thought to himself just moments earlier? Courage and a slim chance? Was this not exactly that?

“Hey,” he muttered softly, his voice almost a whisper. “What are your plans after graduation?”

You tilted your head to the side in visible confusion, a strand of hair falling in front of your eyes seductively from the movement. He tried not to stare too hard. “Plans?”

“What will you do once it’s time to leave? You haven’t said anything to me about it– or Ominis,” he added quickly. “We were talking about it in Hogsmeade earlier, so I was just wondering.”

You seemed to ponder his question for a minute, your wandering hands coming to a sudden halt in the mass of bubbles. Truthfully, you hadn’t brought it up to either of the Slytherin men because you hadn’t come to a final decision yet, but it made sense that with the completion of your N.E.W.T’s, people would begin planning their post-Hogwarts lives. The thought made you equal parts sad and nervous.

“I thought about getting a job at first… to make a name for myself and save money, you know? But honestly, I think I might travel. I’ve explored virtually all of the Highlands for ancient magic sites and I think I’ve hit a dead end. I want to learn more about Isidora’s magic– the power from the Repository is still as much of an unknown now as it was two years ago. It’s just collecting dust inside of me at this point.”

Sebastian gave you a nonplussed blink and did his damndest not to sound paranoid when he responded. “Travel? Where exactly were you thinking?”

You shrugged and averted your gaze to the bubbles in front of you. Of course Sebastian would be displeased to discover that yet another person from his life would be departing it so soon. It was part of the reason you’d been keeping your intentions to yourself for so long. Nonetheless, you answered softly, “Maybe to Poland. Isidora’s notes mentioned that she originally hailed from there–”

“Poland?” Sebastian’s frantic voice cut you off, and he found his legs carrying him to the edge of the bathtub to kneel there and bore holes in the top of your head from across the water. “You would go that far to chase after a maybe? You don’t know for certain if looking out there will even bring you any new information– it sounds incredibly reckless.”

You fixed him with a hard, telling look. “That’s rich, coming from you. Who was it that refused to let up in his search for a cure for all of fifth-year?”

His brows slammed down atop his narrowed eyes, “That was different.”

“How is it any different?” You sounded exasperated, and he sighed indignantly. “You wanted answers, and you never stopped looking for them. You had nothing to go off of, much like myself presently, and you were willing to do anything if it meant saving Anne. I want to use this power for something good, Sebastian. I can’t do that if I don’t know how it works. Leaving is the only plausible outcome for me.”

“It would be that easy for you, then? To leave and disappear for who knows how long searching for who knows what? Would you have even told me if I hadn’t asked just now?”

It would be that easy for you to leave me, is what he really wasn’t saying.

You shook your head at him, completely bewildered that he was so affected by your revelation. “Eventually, yes, I would have. I don’t understand– why do you care so much? You of all people should know I would keep in touch; I’ll send owls every week, keep you updated on where I am and what happens. Going our separate ways was practically always in the cards, Sebastian.”

Some tiny, annoying part of him had always known that. Living at Hogwarts was a blissful reprieve from the real world, offering himself and other students a sanctuary from the concerns and problems of adult life. Hearing you voice your thoughts was a completely different thing, however, and Sebastian was woefully unprepared for the dawning realization that he wouldn’t be able to see you anymore.

He silently cursed himself for having taken this fucking long to accept how empty he would feel without you beside him.

“Sebastian,” you whispered from across the tub, and his eyes slid shut at the sound of your gentle voice. It hurt too much to fathom not getting to hear it again, or not being able to see you and crack stupid jokes with you in the middle of Potion’s class. He wouldn’t get to duel other students with you in Crossed Wands, or go to Hogsmeade to drink Butterbeers and stop by the lake on your walks back to skip rocks. All of it would end, and he would be alone.

Again.

“Sebastian,” you said again, and the closer proximity of your voice had him cracking his eyes open. You were directly in front of him now, evidently having left your spot on the other side of the bath to siddle directly up to the ledge in front of him. Your wide eyes gazed imploringly up at him, and your grip on the edge of the tub was white-knuckled. “Why do you care so much?”

“How could I not care?” He forced the words out while he still had the courage, seemingly gazing into the depths of your very soul as he stared down at you. His words had your eyes widening further as a flush crept up your neck onto your cheeks, and before you got the chance to say anything, Sebastian was leaning down to capture your lips in a desperate kiss.

A surprised squeak weaseled its way from your throat as he lifted his hands to cradle your head cautiously, and you weakly curled your fingers around his wrists as he dipped lower to accommodate for the awkward angle. Sebastian kissed you hungrily and passionately– in the way he had dreamed of doing for years. He licked along your lower lip and bit gently at it, pulling a gasp from your parted lips before one of your hands came to rest on his bent knee, leaving a wet handprint behind in its wake.

After a few heated moments, Sebastian broke away to look at you through his lashes, more surprised than anything to discover that your face was an open book; a mixture of shock and hesitance was etched into your features while something much hotter burned in your eyes, making his head fucking spin.

“Sebastian, I– ah…”

He let you go and sat back on his heels then, crossing his arms over his knees and resting his chin on his forearms as he peered at you nervously. There were a thousand different things Sebastian wanted to blurt out, but he settled for staying quiet as he waited for you to say something– anything.

You gaped up at him for a moment, blinking slowly as the flush across your cheeks darkened considerably. “How long?”

He shrugged timidly before he said, “Ages. Since fifth-year, if I’m being honest.”

“You didn’t… say anything?” His curly brown locs brushed across his forehead as he shook his head. “Why?”

“After everything that happened in the Catacombs, I was terrified of fucking things up again. I didn’t want to ruin our friendship– I wouldn’t have been able to handle it. So I just… kept my feelings to myself. But now you’re telling me you would leave– that it was always inevitable things would end this way– and I can’t accept that. I refuse to.”

You didn’t know what to say. Your mind was reeling from Sebastian’s revelation, and your heart was hammering away in your chest so loudly that you were certain he could hear it. Of course you felt the exact same way, but much like Sebastian you’d been worried about ruining things or complicating your already tentative relationship– especially after the events of your fifth-year. But now here he was– on his damn knees confessing to you– and your thoughts of the future vanished completely from your mind.

Biting your lip, you stared up at Sebastian for a moment with wide eyes. One of your hands rose off the edge of the tub to trail your wet fingers across his cheek, and as Sebastian’s freckled face moved away from his arm to swim clearly into view, you stood straight out of the water invitingly and let him wrap his strong arms around your bare waist. As the water beading over your skin soaked through Sebastian’s shirt, his eyes flickered between yours, searching for the hesitance he’d seen there before.

It was nowhere to be found.

When your lips met with his again, the softness had left them, and the two of you kissed one another hard and needily. Sebastian straightened and nipped at your lips, smiling against your mouth as you melted into him, and your breath caught somewhere in your throat when his tongue slipped into your open mouth to tangle with your own. Holding you tighter, Sebastian trailed his hands over your slick skin– traversing up your spine and into your unruly hair to tangle his fingers in the strands at the nape of your neck. He kissed you desperately, moaning softly into your mouth when he felt your hands sweep across his shoulders to fumble with the buttons at the front of his shirt.

You’d made it about halfway down the row of clasps before Sebastian grew impatient, freeing one of his hands to deftly undo the buttons with a practiced finesse that made your mouth water eagerly. He panted along the curve of your jaw as he undressed, biting and sucking at the skin of your throat until he was pulling away to shrug the damp material off of his shoulders. His tie was still snug around his neck, clamping the collar of his button-up in place, and he growled as he loosened the thin bit of fabric before yanking it over his head and diving back into the kiss like he’d been starved of your very essence.

Until now the bizarre angle had proved to be a non-issue– but then the pressing matter of his trousers came to light, and you felt as Sebastian blindly palmed at his belt buckle in a bid to undo it. “Need help?” Your coy offer whispered against his lips sent shivers up his spine, but he was too frantic and greedy to give you the chance to assist.

Those toned, capable arms released you so he could stand fully, his lust-dark eyes never wavering from yours as he finally succeeded in unlooping his belt from around his waist. “Just don’t move and keep watching like that– it’s helping me plenty.”

You flashed him a mocking pout but did as he asked, settling back into the water and scanning his body longingly as he stripped down to his briefs. He teasingly ran his thumbs under the waistband of his undergarments and shot you a smug look, all too pleased with the way you licked your lips when he eventually began slipping the attire down the delectable ‘V’ of his hips. The sight of Sebastian biting his lip as his cock sprung free and arched proudly against his toned stomach had you halting your movements, though, and you audibly whimpered before the brunet threw his briefs over his shoulder and descended into the soapy water with you.

In a flash he had you back within reach, his hands coming to cup your rear as he silently prompted you to jump into his arms so he could carry you through the water towards the rim of the massive tub. Your back bumped against the tiles there, and Sebastian took full advantage by pressing himself into you more firmly. The hard, stiff length of him rubbed tantalizingly against your folds, and you sighed contentedly before his mouth was on yours once more.

The two of you languidly kissed for what seemed like forever, and you were more than willing to continue for as long as Sebastian saw fit. When one of the hands he had against your rear began to slip lower into uncharted territory, you smiled against his lips and huffed out an airy laugh. “Eager, are you?”

“Shut up,” Sebastian murmured against your mouth, holding fast to your bottom harder and with greater fervor. “You have no idea how long I’ve been dreaming of this.”

You arched your hips against Sebastian’s and drew in a shaky breath at the sensation of his shaft grazing over a particularly sensitive spot. “Then show me,” you implored.

Growling again, Sebastian wrangled you around until you were kneeling on the ledge with your back to him and your hands braced on the rim of the bathtub. His hands were seemingly everywhere; sliding down your shoulder blades, scratching at the curve of your waist, then ghosting down the backs of your thighs as he nudged your legs apart further. You felt as he leaned forward to press a chaste kiss against the outline of your spine, and there wasn’t a chance in hell you could smother the shudder of delight that coursed through you. Sebastian moved on swiftly, though, and began pressing messy, open-mouthed kisses against your lower back, curling his hands around your hips before you felt him descend closer to your nether region. In your current position, it was just barely peeking above the thin layer of bubbles within the tub, and you heard the water slosh around Sebastian as he dropped to his knees and came face to face with your most intimate parts.

The broad slick of Sebastian’s tongue sliding through your folds pulled a startled gasp from your lips, and your forehead fell against the tile with a soft, stuttered moan. The feeling of him tasting you– achingly and deliberately slow– had you shaking in earnest as you bit your knuckle for a semblance of control. You were struggling against the urge to rock back into his ministrations, eventually settling for reaching between your spread legs with your free hand to rub at your clit for some added reprieve, but then Sebastian slid his palms from your hips to your inner thighs to nudge your hand away.

“Let me take care of you,” he whispered to you, and you mewled softly before tucking your hand against your chest and nodding. “Don’t hold back, either. I want to hear you.”

You were on the verge of responding, but the way Sebastian slid his tongue over you again drove whatever words you’d formulated straight out of your head. His hands ghosted along your skin as he lowered himself further, the tops of his shoulders completely submerging beneath the soapy water, and he took care to trail his fingers slowly down the sensitive skin of your inner thighs as he made himself comfortable behind you.

Sebastian laved his tongue over you gently and encouragingly, then experimentally stiffened the muscle before poking it inside of you, leaving you whining and gasping his name. The brunet pushed his tongue in deeper then, moaning in response to the hitch in your voice as he pressed his lips against your folds and fucked the muscle into you slowly.

“Gods, S-Sebastian–”

The man in question sighed and picked up his pace, flicking his tongue into you and dropping messy kisses against you. One of his hands slid up to your clit, brushing two of his fingers over the bundle of nerves with a moan, and when he leaned in hard to fuck his tongue as deep as possible into you, your high, airy whimpers made Sebastian’s head spin.

With one last pump of his tongue, Sebastian pulled away, grinning at the way you twitched in response to his efforts. You heard the water stir and felt the warm, wet weight of the Slytherin drape over your back as he leaned forward to kiss across your shoulder, his hands running soothingly up the sides of your waist.

“Fuck,” Sebastian breathed out, prompting you to turn and look at him over your shoulder. Your half-hooded eyes and parted lips sparked something in him then, and when you reached back to tangle your fingers in his hair, the brunet leaned in to meet you gladly. You moaned into the kiss, drawing a like-minded sound from Sebastian when you ground your hips back against his throbbing member. His thick hands gripped at your waist tightly as he gasped against your mouth, a desire unlike any he’d ever experienced overtaking him in a matter of seconds. The urge to feel you encasing him was overwhelming– enough so that for one brief moment, Sebastian allowed himself to press so hard against you that it stole your breath and smothered your senses.

“Sebastian,” you groaned from beneath him. Your gaze sought him out, but his own eyes were pinched shut as he relished in the ecstasy that fell over him from merely grinding against you. It wasn’t simply the act itself that was doing it for him. It was knowing that he was doing it with you. Everything he had craved for two whole years was finally coming to fruition, and despite wanting to relish in every second of it with you, Sebastian was losing himself to his impulses. You called to him again, “Sebastian, please.”

His chocolate brown eyes cracked open at the sound of your voice coupled with your incessant tugging on his hair, and his shaky sigh told you everything you needed to know; he was incredibly eager.

“S-Sorry,” he stammered out, swallowing thickly in a way that drew your attention to his bobbing adam’s apple. You merely shook your head in silent dismissal, then rocked back against him to spur him into motion. If it was guidance he needed, you were more than happy to provide it. “I don’t know how much longer I can draw this out,” he admitted with a low voice, and as though to punctuate the statement, you felt his fingers dig into the skin of your hips to prevent you from moving against him any further.

“Then don’t,” you insisted needily, yanking lightly on his hair once more to goad him into moving. “I’m ready if you are.”

“If it’s all the same to you,” Sebastian murmured, his voice gravelly and directly against the shell of your ear. “I’ll be the judge of that.”

You shivered in anticipation when you felt one of his hands trail down the swell of your rear to probe at your slick entrance with one of his fingers. His other hand traced soothing circles against lower back, relaxing you further until you had melted against the rim of the tub with your neck craned to the side to watch Sebastian as he worked.

When he sank one of his fingers into you slowly, you let loose a shaky exhale and felt a flush creep up your neck and onto your cheeks, leaving Sebastian biting his lip at the wanton image you made as he pressed the digit knuckle deep. Thrusting slowly, he eventually managed to work a second finger into you, trying not to think too hard about the way you looked spread around him, or the way you moved back against him, or how fucking wet you were.

“Sebastian,” you groaned. His eyes flicked back up to yours, entirely certain that he looked just as fucking needy as you did– especially given the way you shivered and rode back against his hand a little harder. “C-Curl your fingers down a little–” he did so, and was instantly rewarded with a telling jolt from you. “Oh fuck– there–”

The sound of Sebastian moaning to himself was almost lost in the way you were gasping and keening, and he moved his hand from your back to your hip to hold you in place as he followed the same path you’d instructed him to with his fingers. He thrusted a little harder, curling his digits against your sweet spot, and the way you arched your back and spread your thighs as far as you could without slipping while you gasped for Sebastian was fucking intoxicating.

It was too much.

Sebastian pulled his fingers free and reached towards you without a second thought, coiling his arm around your waist as he leaned in to kiss you again. You couldn’t help but whine at the way his cock rubbed against you, and you were near boneless in the brunet’s arms as his lips molded to yours and his tongue delved into your mouth. His strong arm held you fast to him as the other braced against the rim of the tub, holding him steady above you as he kissed you senseless. When he finally broke away to catch his breath, you practically sagged into the water beneath him.

“Merlin, Sebastian…”

“Are you okay?” The Slytherin’s voice was rough when he asked, low and raspy with arousal, and once you gave your enthusiastic approval, Sebastian reached between the two of you to line himself up before pressing into you.

Sebastian’s eyes squeezed shut at how you felt around him; tight, hot, and utterly incredible. He just barely managed to keep his composure as he slowly filled you, and your scarcely stifled gasps and keening whimpers were decidedly not helping him keep his wits about him. Every fiber of Sebastian’s being urged him to ram his cock into you– to fuck your brains out and hear his name spill from your lips in breathless screams. When he finally did sheathe himself all the way inside of you, he melted against your back, holding you tightly and whispering your name against your ear over and over again.

“Fuck, you’re…” you trailed off, subtly shaking against Sebastian’s damp skin. “You’re b-big.”

“Gods, darling,” Sebastian breathed, exhaling roughly into the nape of your neck. “Can I move?”

You gave a stuttered assent, but you were still insanely tight around his cock, so for both your sakes when Sebastian pulled back a little and rolled his hips back in, he did so slowly in a bid to test the waters.

No pun intended.

Your choked moan was more than enough of an answer for him, so he worked to set a slow, deep rhythm, buying himself time to get used to the heat wrapped around his cock. The gentle sigh that emanated from you coupled with the way your back bowed ever so slightly told Sebastian that his restraint was appreciated. But then you were glancing back at him from over your shoulder, and the rosy flush that colored your cheeks combined with your glazed over eyes nullified the majority of his self-control.

Sebastian blindly trusted you to keep steady on your knees as he gripped your hips to thrust into you harder, moving faster and giving gasping moans as you tensed and groaned, squeezing him in the most perfect way. He pulled you back onto his cock, adjusting his hips so he could fuck into your sweet spot, and the way you arched under him and cried out was fucking amazing.

“Oh f-fuck, Sebastian,” you moaned, reaching back to tangle your hand in his damp, brown curls, and Sebastian let you tug him closer so he could mouth along your shoulder, tasting the sweet-smelling bathsoaps as he went. The water splashed around you both, and you swore softly as a small wave of sudsy water sloshed up the side of the tub and sprayed you in your face.

Taking note of your predicament, Sebastian slowed his movements and angled his head so he could murmur directly in your ear, “Do you want to move?”

“We could, but– damn, Sebastian–”

Sebastian didn’t want to fucking move. He did want to see your face, though. He pulled out swiftly, and before you could move to climb out of the water, he grabbed and maneuvered you around so your back was pressed against the side of the tub with your legs bent over his elbows. When he reached back further to grip the rim of the tub on either side of you, he sank back into you with a low moan. Water wasn’t the most spectacular of lubricants as it turned out, but you were naturally slick enough that it was essentially a nonissue.

The expression that spread over your flushed face drove Sebastian a little crazy. He moved hot and slow, pulling back far with every aching thrust before filling you up and making you whimper. It’s exactly what Sebastian had wanted, but the way your eyes rolled shut just made him want to fuck you harder, water splashing in your face be damned.

He leaned in close and nipped at your swollen lips, still rolling his hips maddeningly slow. “I want to fuck you so hard,” he managed, voice shaking. “I want to hear you scream my name. I want to see you fall over the edge so hard that you pass out in my arms.” He snapped his hips, just enough to make you cry out. “I’ll fuck you just like that. I’ll make the Prefects come running from how loud you are. I hope you don’t have plans this weekend, because you’re mine until the bell tolls on Monday.”

You whimpered and shivered under Sebastian, sucking in sharp breaths with every slow thrust, and when you rode your hips back into the brunet, he couldn’t help but let his head hang between his shoulders, his dark eyes sliding shut. The way you were sucking him in deeper was mind-blowing, the water flowing in waves around the two of you, until a burning, tightening sensation took root in your gut and made you grit your teeth together in anticipation.

“S-Sebastian, fuck,” he thrust harder in response, grinding his hips into you and causing your back to arch with a gasping cry. “Sebastian, I’m– I’m going to–”

“Do it,” he gasped, leaning in to kiss you quickly and messily. “Let me see how you come for me.”

Your nails dug into his shoulder before you pulled one hand away to begin frantically rubbing circles over your swollen clit. You rocked your hips back into his and worked yourself closer to your finish with a low moan, keeping your movements in time with his thrusts. The way you licked your lips and the way you watched Sebastian with a dark, fucked-out gaze made him whimper. You were so intense– your lips parting on gasping moans of Sebastian’s name– and it took a surprising amount of self-control for him to not just fucking blow it right then. Instead, he bent you back just a little further, just enough to see that needy expression fall back over your face as he fucked you just that little bit harder.

Your moans grew higher, louder, breathier, until you were crying out and shaking in Sebastian’s arms. “S-Seb– fuck– I’m coming, I’m coming–”

Your spine rounded and your eyes squeezed shut as you clamped down tight on Sebastian’s cock, a guttural whine ripping from your heaving chest as your climax washed over you. The dexterous movements from your fingers took you higher than you thought possible, and the way you barely managed to choke out Sebastian’s name was enough to send the Slytherin over the edge.

He pressed himself against you and buried his cock deep, fucking you through your finish with short, fast thrusts while he moaned your name against your throat, his hands moving to grip your sides tight with trembling fingers. “Fuck, darling, fuck–”

Blearily, you moved your arm and wrapped it around Sebastian’s neck as he came, who was shaking and babbling far too loud for it to be muffled against your slick skin. You buried your face into his tangled hair, jolting slightly from every miniscule movement of his twitching member inside of you. When the bulk of his post-coital high had subsided, he began wetly mouthing up your neck and along your jaw before sweetly peppering kisses over your cheek. The demonstration brought a breathless grin to your face, and your hands found their way to the hair at the back of his neck before you wound your fingers through the strands.

“Merlin’s bloody balls,” Sebastian gritted out, sliding his arms out from under your knees to hold them fast to his waist. You followed his lead easily and wrapped your legs around his hips, sitting up to kiss him contentedly as your palms skimmed along his freckled back. He smiled against your lips and murmured, “We should probably get out. I can feel how pruney your fingers are.”

“Mm,” you hummed softly, pulling back from the kiss to hold one of your hands up to see how wrinkled your skin had become in the throes of passion. “You’re not wrong. But it would be counterproductive to not wash off all the sweat, wouldn’t it?”

Sebastian gave you a nonplussed blink before smiling brightly at you in agreement. Almost reluctantly, he slid free from your welcoming heat and deposited you on the shallow stone ledge, then hoisted himself out of the bath to pad over to his toiletry bag. After grabbing all the necessities and jumping back into the steaming water, the two of you took your time cleansing one another, lingering touches and thoughtful kisses being exchanged throughout the process. Eventually Sebatian found himself sitting with his back to the rim of the tub, your smaller figure situated comfortably between his legs as he scooped water into his hands and let it run over your shoulders. If your slouched posture was anything to go by, you were incredibly relaxed, and Sebastian realized dimly that he was too. To be with you in this way was everything he could ever want and more, and he didn’t want it to end. Not by a longshot.

“Let me come with you after graduation,” he said suddenly, his voice a mere whisper from behind you.

Your eyes fluttered open as you processed his request, the bathroom utterly silent except for the distant dripping of water from the faucet, and before long you were turning around to face him with your hands braced on his legs. “What?”

“Let me come with you,” he said again, conviction burning in his dark eyes. “To Poland. I want to do whatever I can to help you. Please don’t leave me behind.”

All you could do was blink for a moment before opening and closing your mouth in surprise. Sebastian’s unwavering gaze only prolonged the formation of words, until eventually you furrowed your brow and uncertainty took root. It wasn’t that you didn’t want him with you– far from it, in fact. The events that had transpired just minutes earlier had only proven that your close relationship was something to treasure for as long as possible, and you were more than ready to do exactly that. You just didn’t want him to throw his own ambitions to the side simply because you planned to travel. “What about what you want to do? Don’t you have your own plans? I thought Professor Weasley talked to you about–”

“I never made a decision,” he stated firmly and with a shake of his head. “The Professor had her own ideas about what I would excel at, but I never agreed or wanted to pursue any of her suggestions. I honestly felt like I was in limbo until now. My point is, what I want is to stay with you. I want to help you the same way you helped me with Anne, and I really, really don’t want to end up sitting alone in some office in London waiting for your owls to reach me. There’s always something missing when you’re not with me.”

To say you were an emotional mess would be a monumental understatement. Sebastian’s words struck something deep within you, something sentimental and desperate to come to the surface. He evidently saw your tears before you felt them, because he was instantly sitting forward to cup your cheeks in his wet hands before wiping them away with his thumbs. The concern on his face was apparent, but you were already smiling reassuringly at him before he could verbally ask if you were alright. “You really know how to confess to a girl, huh?”

He let loose an airy, relieved laugh that drifted over your nose and chilled your damp cheeks, and you wrapped your fingers around his wrists as he smiled anxiously at you. “I had a long time to practice. Is that a yes, then?”

“Yes, you can come with me. I would love it if you did,” you said, and the giddy excitement that radiated from the man was the most palpable thing in the room at that moment. “Two heads might be better than one, after all.”

Sebastian was on you in an instant. He coiled around you like a baby mooncalf and smiled so brightly that it easily rivaled the intensity of the sun. Water splashed everywhere as he spun you effortlessly within the bath, your capricious laughter reverberating off the walls of the spacious room as elation flooded your system. Being encased in his warm embrace was all the confirmation you needed that you had made the right choice. In turn, knowing that his future was all the clearer brought a sense of peace and belonging to Sebastian that he would hold on to for as long as he was able.

It just so happened that presently, he was holding on to you.

#sebastian sallow #sebastian sallow smut #sebastian sallow x you #sebastian sallow x reader #sebastian sallow x female!reader #hogwarts legacy #hogwarts legacy fanfic #hogwarts legacy fanfiction #sebastian sallow oneshot #hogwarts legacy oneshot #sebastian sallow x mc #I chewed my lip off trying to finish this before I have to leave for Medieval Times #gonna go watch knights joust on horse back and drink ale out of a tankard #bye happy reading MWAH #my writing

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