Posted originally on the Archive_of_Our_Own at https://archiveofourown.org/ works/12834216. Rating: Explicit Archive Warning: Underage Category: F/M, M/M Fandom: Fantastic_Beasts_and_Where_to_Find_Them_(Movies) Relationship: Credence_Barebone/Original_Percival_Graves, Credence_Barebone/Percival Graves_|_Gellert_Grindelwald, Original_Percival_Graves/Chastity_Barebone Character: Original_Percival_Graves, Credence_Barebone, Chastity_Barebone, Credence &_Chastity’s_adoptive_parents Additional Tags: Alternate_Universe_-_Modern_Setting, Alternate_Universe_-_No_Powers, set in_England, Irish_Pericval_Graves, Chav_Percival_Graves, Original Percival_Graves_is_Bad_at_Feelings, Original_Percival_Graves_is_a_bit_of an_asshole, Slut_Credence_Barebone, Chastity_is_a_virgin, but_she_wants some_dick, Kind_of_Underage, everyone_is_sixteen, Percival_Graves_has earrings, He’s_basically_Lehiff_from_Intermission, Semi-Public_Sex, semi- public_blowjobs, Credence_and_Chastity_are_adopted, but_they_have_loving parents Stats: Published: 2017-11-26 Words: 5194 ****** He’s A Gateway Drug ****** by imoldgreg Summary Graves thinks with his dick and ends up at a very wealthy home with Credence Barebone sucking him off in front of the whole family. Worst part is he was supposed to be there for Chastity. Notes So this is my first fic on here :D . 16 is the legal age of consent in England where I live but I’ve tagged it as underage anyway for those who live elsewhere. Mentions of smoking and Graves being a fuckboy tbf. This was not the kind of place Percy should’ve been hanging around. The school looked more like a castle, with tall windows and big wooden doors. The field must’ve been more than an acre or two, and it was so precisely trimmed – every green blade the exact same sheer length. Everything was enclosed within a tall metal fence, following round the full perimeter of the field and round the concrete yard, ending in a large intimidating-looking gate. It was wealthy, extremely well funded from the private fees the loaded parents of the spoiled brats within dished out without a second thought. Percy shouldn’t have been surprised really. It was after all situated in the rich side of town. A side he rarely came across, unless he completely had to, unless he had a very good excuse or reason. And this time, he did. Ilvermorny was among the best private schools in the country. It raked in almost forty thousand a year from each student, more for those who had to board. It was strict and heavily traditional, even keeping the boys and girls segregated. The girls had one side of the school and the boys had the other. Mixing was completely prohibited and forbidden under any circumstances. And it was one of the girls from this particular side of the school that Percy was here to see. Chastity Barebone. Percy had met her during an enquiry down at the police station. She had been a witness to him and his group of friends shoplifting a large department store, one that Chastity was wealthy enough to buy from regularly, and one that Percy was not. He had been in the room while they questioned her. Percy was not one for controlling his temper, and his social worker had been present, not to mention the officers at the station were more than familiar with him by now, so rather unorthodoxly they allowed him to hear her statement. She had sat so prim and proper behind that unforgiving table in that hideously sterile room. Her legs were pressed tightly together, her hands stayed place on the table, and she spoke with the kind of air Percy had never heard before. She wasn’t dressed how someone would expect a student of Ilvermorny to dress outside of school, despite her good behaviour. Her skirt was high up her thighs, her shirt low cut. She had a more than adequate body for someone of her age, and she knew it. She was confident, polite, well spoken. But there was a heavy scent following her, something dripping, so eager and sweet. Chastity was a virgin, and it was clear from the years of sexual repression the school had stuffed down its pupil’s throats, she was desperate to lose the label. She was putting it out, it was obvious. Rather surprisingly, Chastity had lied. She claimed how Percy and his friends had been wrongly accused, and that she saw nothing. Percy had been dumbfounded, his jaw hung open slightly in shock as he stared at her from his corner of the room. He had thought she would’ve been a brat, someone snobbish and condescending, considering her family status and schooling. But hey, he’d been wrong before. She had an American accent coating her words as she spoke, and that only captivated Percy further. He’d never fucked someone who wasn’t from England before. She couldn’t meet his gaze for more than a few seconds before ducking her head a little, the picture of demureness. There was a sense of falsity to her act however, though at that moment, Percy didn’t care. He didn’t give a shit. He still didn’t. Chastity had caught his attention, and he wasn’t going to let that go easily. Percy was a guy, he was fucking sixteen for Christ’s sake, what else was he supposed to do? Give up the chance to fuck a virgin just because it’s the 'moral' thing to do? And if that virgin just so happened to be loaded, was he just supposed to sit there and not try to get a little something out of it for himself? He didn’t think so. In fact, now that he thought about it, it would be wrong of him not to. So he lit a cig as he leant against the fence, ignoring the wary look thrown at him from the groundskeeper as he opened the gate, ready for the students to leave. He knew he was going to get chased off if he wasn’t quick, dressed in black tracksuit bottoms and a grey hoodie, hair shaved and the remnants of a black eye fading. He wasn’t supposed to be in this side of town. The bell rang, and out came the girls. The boys would leave five minutes later, as mingling inside school grounds was of course strictly frowned upon. The girls all chatted among themselves, more than a few giving Percy the once over with an up turned nose or interested raised eyebrow, but they cleared pretty quick from the gate, eager to get home. After about two minutes the main crowd had dissipated and left were those who waited back for lifts from parents or waiting for brothers or boyfriends from the boys side. Chastity was waiting by the gate for.. someone, Percy didn’t know who, but now was his chance. He dropped his cig and went over, putting on the most honest expression he could. “You’re Chastity aren’t you? You got me off stealing that shit the other day. Thought I’d come say thanks.” She regarded him with distrust and a raised eyebrow, unsure of his intentions, but she stayed where she was and didn’t falter as she spoke. “Uh.. yeah, it’s fine… you’re, um, you’re welcome?” she smiled at him a little nervous, but couldn’t help the faint blush that dusted her cheeks. “I thought I’d pay you back, you did me a real favour y'know?” he gave her a grin in return. Playing nice was tedious. It didn’t suit him. However the uniform suited Chastity perfectly. She had rolled up her skirt til the soft curve of her ass was just visible below the hem, and thigh length socks accentuated the slender shape of her long legs. Her shirt was tight, possibly grown too small after a recent growth spurt, and her chest almost strained against the fabric. Percy couldn’t help smirking, and he took a risk, his eyes roaming over her body freely, making his intentions clear. If his observation from the station had been correct, he’d be in for a willing tight hole to fuck. “Yeah? What did you have in mind?” she watched him with increased interest, the mistrust fading from her eyes as she let him take in his eyefull. She even gave him a seemingly shy grin, biting her lip and leaning a little closer to him. His risk had paid off. He gave a confident smirk, his honest and innocent first impression dropping. Percy leaned closer as she did, taking her chin in his fingers and tilting her face up to him a little. He was going to fuck her. He was going to fuck her right up against the fence, right in front of all the boys as they began to leave, right in front of anyone who happened to see them. He was going to make her scream like a bitch in heat. He was going to fuck her in her school uniform, and he was going to do it hard. He’d cum inside her tight wet cunt, watch it drip out as she begged for more- “Hey Chastity who’s this?” a voice broke through suddenly, breaking slightly from the effects of puberty, followed by a boy who shoved his way between them eagerly and grinned at them both, with honestly the brightest smile Percy had ever seen. Percy stared at him surprised at the interruption, and offered a twitch of the corner of his mouth in return, along with a cocked brow. His brief fantasy was fading quickly. Despite his slight daze at the new arrival, Percy couldn’t help noticing the lithe body now pushed back slightly against him, and the firm roundness of a rear making indiscreet contact with his crotch. He gave a little huff as he spat on the ground out of habit and coughed a little, unable to prevent the flush that heated his neck. How could an ass so perfect belong to a boy? But as he caught eye contact with him Percy’s stomach flipped slightly. The boy was… beautiful. Percy had never seen someone like him. His face held narrow feline eyes, the colour gorgeously dark, slightly golden in the light. Perfectly shaped lips, which had no right being so sinfully red and plump, along with thick sooty lashes that fell over perfect cheekbones, and a sharp jawline to match. The boy's hair was curly and dark, cut in a somewhat short cut, but it was messy and wild and expertly mirrored the boy’s personality. He was otherwordly, with perfect cream skin and long limbs. Percy couldn’t help his train of thoughts, or his gaze as it settled on that cute bubble butt again. He set his jaw and forced himself to look away, the flush high up his neck and making his ears feel hot. He couldn’t think about another guy this way. He liked girls, he’d always liked girls. He probably wasn’t feeling well. Chastity groaned and attempted to push the boy away, and Percy winced slightly at the loss of contact. “Credence! Fuck off, he’s a friend alright? Can’t you give us a minute?” she whined, pushing her hand through her hair in a stressed motion. “Ooooh, a friend huh? Well you can come home with us then, if you’re a friend, because friends have dinner at each other’s houses don’t they?” the boy, who apparently was called Credence, spoke excitedly and fluently, accompanying his words with a flirtatious smirk towards Percy and with his eyes looking him up and down appreciatively. His accent matched Chastity's exactly. “That could be fun,” Percy added weakly before he could stop himself. He set his jaw quickly in case he said anything else, while internally he had to forcibly remind himself he was here for Chastity. But all thoughts of her beauty and manner and voluptuous breasts paled in comparison to Credence. He was something else. Credence, happy with Percy’s confirmation, swung his arms around both their necks, dragging them along with him as he started to walk in the direction of what Percy could only assume was his home as he stumbled along, swiftly tugging himself free when he regained sense after the whirlwind of wild black curls had swooped in. Chastity did the same and shoved Credence’s arm away, glaring at him as she started to walk. She glanced at Percy apologetically. “This is my twin brother, Credence, and he’s a little shit,” Chastity frowned, shoving her brother to emphasize the last word. “You don’t have to come home with us if you don’t want to.” “Yes he does, shut up Chas,” Credence butted in, still grinning like a Cheshire cat. Percy couldn’t help smiling back at him. “I don’t mind,” he shrugged , trying to keep his gaze towards Chastity. He was highly aware he was blinking excessively, but it seemed to go unnoticed. The walk back to the two siblings' excessively large home wasn’t long, but it was enough time for Percy to realise how badly he wanted to see Credence on his knees, those fat lips wrapped round his cock, tears staining his cheeks as he fucks into his throat. Maybe the boy would finally be quiet if his mouth was full. He certainly liked to talk. Percy knew he shouldn’t be imagining these things, but fuck it was hard. He didn’t understand it, he wasn’t gay, he fucked girls regularly and he was fucking good at it. But then again, if no one else knew- “It’s this one,” Chastity said, less annoyance in her voice than before, as she lead them up the steps to a modern looking house. Compared to Percy’s fucking council flat, it was bloody huge. In fact compared to anything it was gargantuan. Percy hadn’t even considered a house having a third floor. The siblings dumped their bags by the door and made their way over to the bottom of the staircase, which was adorned with a flash metal banister following it all the way up. “Momma’s late home and daddy's still at work, so we’ve got the house to ourselves for a few hours,” Credence grinned at Percy as he stood up on the bottom step, now a little higher than eye level, resting his hand delicately over the newel post. Something about hearing Credence say the word 'daddy' in that cute accent of his sent a spike straight down to his cock, which twitched in his joggers. Being optimistic Percy hadn’t bothered with underwear, so the more than generous bulge he was sporting wouldn’t hide his hard on if he got one. And he couldn’t get one, not from Credence. If anything it would piss Chastity off, and she was supposed to be the one he was here to fuck. “Percy and I are going up to my room, without you. Just fuck off or something, come on Percy,” Chastity announced, tugging Percy along by his hoodie sleeve a little as they passed Credence, who had the cutest expression of a pout on his gorgeous lips. Percy smirked. His dick was already half hard as he and Chastity found themselves in her room, complete with a queen sized bed and white walls, every decoration and piece of furniture echoing her wealth and girlish personality. The door was closed, and within two seconds they were kissing, their hands gripping into each other’s clothing. His kisses were not gentle, and neither were his touches, as he pushed her back onto her bed, crawling over her and tugging her shirt open. He wasn’t sure if he’d ripped the buttons off or not, but he wanted this done quickly. Images in his mind of Credence and that fucking mouth and body of his brought his dick to full hardness, and soon it was flushed red and throbbing. Percy gave up trying to deny what he really wanted. He wanted to fuck Credence. He didn’t want to fuck Chastity, as pretty and virginal as she was. But his cock was aching as he pulled his joggers down, letting it spring free. She’d have to do. Somewhere along the line of his thoughts Percy had removed Chastity’s underwear , the whereabouts now a mystery to him, and his fingers were thrusting in and out of her soaking cunt at a fast pace. Her skirt was hitched up around her hips and her bra was pulled down to reveal her more than full breasts spilling out. Chastity moaned loud in earnest, unable to prevent her body from reacting as her legs shook and she hooked them around his hips tightly, toes curling. Her hand was jerking him off too erratically, too inexperienced and distracted by the pleasure she’d never felt before to do it right. Percy had had enough. He wasn’t here to make this special. He slid his fingers out easily, gripping her hips tight in his hands as he pulled her up so the head of his cock pushed against her entrance. He rolled his hips forward and pushed into her, letting himself sink into that tight wet heat. If Chastity was loud before, he didn’t know how to describe the sounds she was making now, especially when he started to thrust. Percy leant over her once he’d bottomed out, and thrust too fast too soon for it to be pain free, but Chastity didn’t once tell him to stop. In fact she kept moaning his name, saying how deep he was and how good it felt. He was fucking slamming into her after barely a few minutes, the sounds of his heavy breathing and breathless grunts filling the air with the obscene wet slapping of skin against skin, all contending with Chastity’s moans of pure primal ecstasy. The bed was creaking and banging hard against the wall with each rough thrust. He dug his fingers into the sheets on either side of her head to ground himself as he continued to pound into her, rather liking to imagine it was Credence underneath him instead, moaning like a whore. He seemed like the type. Percy began to feel the familiar twist of his orgasm starting to build, but as his thrusts became erratic the door to Chastity’s bedroom swung open. Credence leant against the door frame, smirk clear on his face as he let his gaze roam over Percy’s body without restraint. “Momma’s back, she said to tell you that dinner's ready.” And everything all too quickly came to a stop, much to Percy’s annoyance. “Fucking hell,” he groaned softly, pulling away from Chastity as she shoved him away quickly, rushing to cover herself in front of her brother, outrage clear on her face. His balls felt drawn and his cock ached. He’d been so close for fucks sake. “Credence! Fucking knock before you just burst in Jesus Christ!” she practically screeched, all trace of arousal gone from her voice as her face turned beet red, scrambling to pull her skirt back down and her bra back up. Her fingers were shaking slightly as she buttoned back up her school shirt. Percy stood by the bed, his jaw tight, no embarrassment over his naked body even as Credence kept eyeing him up. He honestly had nothing to be ashamed off. He was hung, with dark hair smattering his body, thick round his cock, and his muscles were well toned for someone of his age. He was far too focused on squeezing the base of his dick to dull the feeling of his inpending orgasm down as he lazily pulled his hoodie back on, struggling with his tracksuit pants. He tried to pointedly not look at the boy in the doorway, as he was in such a pheromone fueled mindset he wasn’t sure if he’d be able to control himself. “Come on, daddy’s in as well. Gonna be a family dinner,” Credence purred over his words, a lazy smirk on his face as he moved over to let them exit the room and go downstairs. Percy stayed quiet as the siblings argued amongst each other, his mind clouded with the ache of his denied orgasm, breathing rather too heavy as he followed them both into the dining room. He hardly noticed the size or the large modern table in the middle, and took his seat next to Chastity. She was hurriedly fixing her hair into a ponytail to try and limit the obviousness of the post sex vibe surrounding her. Credence took his seat opposite Percy, leaning his chin on his hands and his elbows on the table. It was then that Percy realised he’d changed from his school blazer and shirt into an oversized white t shirt which hung slightly off his shoulder, exposing his porcelain skin and pronounced collar bone. He had also exchanged his uniform trousers for some cut off pyjama shorts, far too high to be meant for guys. They accentuated the plump curve of his ass perfectly, practically clinging to it. He let his eyes linger for far too long on the exposed flesh, and started a little when a voice addressed him. “So you must be Percy, Credence was telling us that you’re a new friend of Chastity’s,” a prim voice came in from the kitchen, followed by a proud looking woman in a smart dress bringing in plates of home cooked chicken dinner for all of them. Percy gave a weak smile and a grunted “thanks” as she put his plate down in front of him, desperately trying not to focus on Credence’s bare shoulder and exposed thighs under the table. His cock was still attempting to soften but remained fairly half hard and throbbed softly ever few seconds. Percy knew if he’d have been able to see it it would’ve been an angry red. “Good to meet you Percy, I have to admit you’re a little different to what we were expecting,” a second newcomer entered, a middle aged man in a suit this time with the same jet black hair as Credence, but cut to a severe length to deny the curls from taking shape. Both the parents could’ve been giving him disapproving and rather disgusted looks at his chavvy clothes and rough appearance , but honestly he hardly took in anything around him as the family settled down to mostly normal dinner conversation as they began to eat their meal. Percy ate too, and actually had to admit the food was the best thing he’d tasted in a long time. He couldn’t remember the last time he’d eaten something that wasn’t from a takeaway or microwave. But the hot heavy weight between his legs was not subsiding. Especially not when Credence 'accidentally' dropped his knife, sliding down under the fine oak surface of the table and out of sight. Out of sight that is, until Percy felt delicate slim fingers rubbing along his length through his joggers, causing him to jolt slightly where he sat at the renewed contact. No one else seemed to notice, and the others carried on their family dinner time conversation, with the father starting up an exciting story describing several clients and a tax scandal, which both he and the mother were completely immersed within. Chastity was dipping in and out of the conversation, more interested in the phone she had brought with her from upstairs. Percy took a chance and glanced under the table briefly. He was met with Credence’s feline eyes gazing up at him mischievously, his swollen lower lip captured between his teeth as his fingers worked his cock back to full hardness, before pulling it skillfully free of the confines of his tracksuit bottoms. The raw skin on skin contact of Credence’s skilled hand working its way over his shaft was bliss. The boy knew exactly what to do. Percy almost moaned out loud when he watched Credence lean forward and place a delicate kiss to the head. Credence kept his hand tight and kept it moving too slow for it to bring Percy to any sort of climax but fast enough to keep the pleasure a constant stream, making his dick throb and the head glisten with precum. He squeezed and twisted just right every time his delicate hand came over the tip. And the face Credence held was so angelic, so innocent looking; the doe eyes, the peek of his tongue running along his bottom lip, the gentle blush dusted over his high cheek bones. This boy couldn’t be real. Percy breathed heavily through his nose and leaned back in his chair, his jaw tensed firmly and his fists clenched tightly on the table. Chastity gave him a questioning look, but he pretended not to see, and made sure his chair was tucked firmly in so there would be no chance of Credence being discovered. The parents were still engaged in work talk. It was odd, Percy thought, seeing a mother and a father interact in such a loving way. His mother had been younger than he was now when she’d had him, and his father had cleared off well before he was born. Any other boyfriends his mum might’ve brought home were rough, aggressive, physical. Then they’d leave. This, however, was an entirely different dynamic. Then Percy felt those sinful lips wrap around his head, and the expert swirl of that pink tongue over his slit, and all thoughts vanished. He felt Credence go lower, about halfway, then bob his head back up to the tip, his tongue pressed to the underside of his cock, sliding over so many sensitive veins in just the right way. Oh God and how the boy sucked as though he was trying to suck the soul right out of him through his dick. Credence fucking knew what he was doing. He was experienced, and expertly so. Percy’s mouth hung open a little and he sucked in a breath. His knuckles turned white as he clenched the edges of the table tighter, every limb shaking a little with the pure effort of remaining silent. His face was bright red, the blush coating his ears and neck too, no doubt matching the flush of his length. The vein in his forehead was clear. He felt Chastity’s eyes on him, and he could faintly hear her saying something to him as she ate, which he offered a slight grunt to. It was cut off too soon as he felt a loud moan almost escape out his mouth. Credence had deep throated him. Percy felt his eyes roll back into his skull as he leaned back in his chair, pushing his hands up against his forehead tightly, as if he was trying to keep himself together. His head bumped the back of Credence’s throat as the boy sucked hard, swallowing around him, the feel of him moving up and down at a slick pace causing Percy’s dick to physically pulse, his orgasm starting to build again. Credence didn’t let up. That unforgiving wet heat felt so soft and just so right. Just the idea of Credence knelt on the floor sucking his cock like there’s no tomorrow was enough to push him over the edge. Percy wished he wasn’t under the table so he could see the true art of Credence with his throat bulging, tears running down his face, mouth full and drooling as he tried desperately not to choke. Percy bit his fist hard as he climaxed, his whole body shuddering as he thrust his hips up helplessly into Credence’s mouth, which was latched onto his base. He came down the boys throat, and he came hard. It was one of the most intense orgasms Percy had ever experienced due to the denial of his previous one. It left him breathless, shaking. His fist had purple indentations where he had bit down. Saturated pleasure swept over him like a wave, and then it slowly seeped away, until he came back to his senses. Credence had already swallowed his seed down and tucked him back inside his joggers, and was just reappearing from under the table back onto his chair, a mischievous smirk clear on his face. What a mess the boy had made of himself. His hair was tousled , his lips were bright red and truly swollen, glistening wet with spit, as was his chin which he was hurriedly trying to wipe away with the back of his hand. His eyes were a little red, and his cheeks shined slightly, with faint tear tracks visible. Just the thought of Credence choking on him til he cried made Percy want to immediately get it up for round two. Percy then realised Chastity was glaring at Credence, and judging by the yelp the boy suddenly emitted and the jolt in his body, she had just kicked him. This, somehow, brought the parents out of their chattering, and the mother frowned at Chastity as she stood up and moved over to Credence, cradling the boy as much as she could to her chest. He snuggled against her pointedly, keeping his eyes fixed on his sister. “Chastity! Don’t hurt your brother! Go straight upstairs now,” she scolded firmly. The father shook his head disapprovingly as he tidied away the plates and other dinner things adorning the table. Percy wasn’t sure when everyone had stopped eating. He certainly hadn’t consumed much. “Honestly Chastity I would’ve expected better from you when you have a guest over,” her father admonished in a stern tone, frowning as he collected up the water glasses. Chastity didn’t even bother arguing. She set her jaw, stood up and shot a look worth a thousand daggers aimed towards Credence before storming out upstairs. Percy heard her door slam. Something told him she was more than used to situations like this occurring. The mother stayed cuddling her son for a few more seconds before helping the father clear away the rest of the dinner items, and then politely announcing that it was probably best if Percy left now and they were sorry for the argument. Percy bid his thanks and stood, not about to argue over staying, he was more confused as to what had even taken place this evening. It seemed so surreal. Had he really just let the brother of the girl he’d just fucked suck him off under the table while the rest of the family and said girl sat around it eating dinner? Apparently so. The father and mother left the dining room, and Credence showed him to the front door. Percy gave his ass an appreciative squeeze, which earned him a coy grin from the boy, as he was let out into the outside air. It was mild, with a faint breeze echoing through the trees. The now golden low light made Credence seem like something out of a fairy tale. His eyes glittered as he leaned against the door frame, watching Percy like a cat watched a bird in its cage. “Thanks for um…having me over,” Percy raised an eyebrow as he spoke, his tone quiet as he glanced up at the upper windows of the house. “Tell your sister she’s fit for me yeah?” Credence mirrored his cocked brow with his well shaped one, worrying his bottom lip between his teeth again. “She always fucks off in a mood whenever I get the boys she brings home, don’t take it personally,” he answered, watching as Percy lit a cigarette, the corner of his mouth pulled into a smirk. “But you’re.. you’re different than the others. Come round again ok? Don’t bother about my sister she won’t care as long as she doesn’t see you, and even if she does just fuck her and she’ll shut up.” Percy listened with raised eyebrows as he took long drags of his cig, blowing the smoke out absentmindedly. He couldn’t deny Chastity had been right when she’d called Credence a little shit. He spat on the ground before he spoke, unable to deter the habit. “I’ll come tomorrow, but if I end up with some crazy bitch harassing me for it I’m blaming you,” he grunted, trying to make himself believe he had some form of control over the downward spiral he had just been plunged into. Credence grinned wide at him, and Percy felt his heart ache slightly at how beautiful he was. “Perfect. See you tomorrow then.” Percy nodded as the door was pushed closed and he descended down the front steps and out onto the street, pulling his hood up over his head as he continued to smoke. He knew what this was. He knew exactly why it had all seemed so surreal. Credence was a drug, and Percy had just got hooked. Please drop_by_the_archive_and_comment to let the author know if you enjoyed their work!