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horrorhot-line · 7 days

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saiki's nsfw alphabet

➵ pairing: saiki x female!reader

➵ word count: 5.3k

➵ genre: nsfw

➵ warnings: minors dni. this post is pure smut, no plot here.

➵ summary: pretty self explanatory, the nsfw alphabet on your favourite boy.

➵ masterlist (requests are open)

notes: so from the recent poll i've learnt one thing, ya'll are horny for this man, and of course i shall provide, but in the meantime i thought i'd upload a nsfw alphabet (give you guys crumbs) since i've done it for the other fandom i write for, hopefully this satisfies you all until the next chapter of ftl is out <3333 @ne0n-s this one's for you since you called me daddy— this author doesn't shy away from child support.

credit to @the-coldest-goodbye for the template

➵ ➵ ➵ ➵ ➵ ➵ ➵ ➵ ➵ ➵ ➵ ➵

➵ a for aftercare (what is he like after sex?)

you come first, always. the moment saiki finally empties his balls inside you after pulling yet another orgasm from you, his thrusts shallow as he tries to make sure every drop ends up inside your cunt and post-nut clarity hits him. not in a bad way, in the way he immediately thinks about your comfort. his mind cleared of lust when his balls are empty, you'll be leaking hours later and he knows his work is done. with that, he picks you up softly, knowing from reading your thoughts that you can't walk, legs shaking as your spent form lays on the bed. he does quick work of cleaning you every time, before he brings you back to his bed, gently placing you down before he slips in next to you underneath the covers, waiting until your arms and leg find his, draping yourself over him like a blanket before you try and pick his mind about how the sex was, a routine for you since he never says it himself. he finds a way to deflect the question, most of the time. "how do you have the energy to talk but not go to the bathroom?" "uh— no, you're not gonna change the subject this time. now, what did I do to make you horny?" "good grief woman, let me sleep." "kusuo!" "fine… you backed up on me when I was cuddling you. it was a natural bodily reaction." you don't listen though, too busy assuming (rightfully so) that he was an ass guy, taking your notes. not true, he definitely preferred your tits over your back.

➵ b for body part (his favourite body part of his and also his partner’s)

he likes his hair, more specifically he fucking loves likes when your arm reaches underneath his shoulder as he fucks into you from above, fingers gingerly trailing up his back before they find their way to the back of his neck and into his hair, pulling lightly at the locks as he slams his pelvis into yours. his expression won't change, but if you ever took the chance to put your hands on his chest for leverage, you'd know just from his heartbeat the kind of effect you have on him. now whether you pick up on it or not, he loves prefers your tits, it's the first part of your body his hands grab whenever he has the chance. he will never tell you, but he loves using them as handles for when he's fucking you, hand on your tits as he pulls your body to meet his thrusts, keeping you there for a second longer as he bottoms out, dick impossibly deep in your cunt, tip bullying rather than kissing your cervix. when your eyes roll to the back of your head, and he reads your thoughts, of how you can barely breathe, how you can feel him in your gut, he curses himself for nearly cumming. "your heart rate spiked, thinking about me using you again?" "…people will hear you if you don't stop whining, pull my hair if you can't take it— like you usually do."

➵ c for cum (anything to do with cum, basically)

when saiki is done, pulling out after he's sure he's emptied every last drop of his cum inside your pussy, he spends a moment watching your chest rise and fall, covered in slick and sweat and his eyes will trail down to where his cum starts leaking out of you, only to use his fingers to shove it right back in, not blinking an eye as you twitch and complain about sensitivity, too busy making sure you don't waste all of what he has to give. he won't admit it, but just the way you squirm, pawing at his hand as he fingers you slowly is enough for him to go another round. "…how tired are you?" "like on a scale? 9.5 buddy, and this pussy is off limits until that number goes below 5." the latter sentiment falling on deaf ears as saiki continues to finger you. "…can you go one more round?" "seriously— but we just—" you end up with another creampie, surprise, surprise.

➵ d for dirty secret (self-explanatory, a dirty secret of his)

it's not that he doesn't have a dirty secret, it's more the fact he has too many, but his biggest one is probably the fact that he tries to see how many times he can make you cum before he does. he enjoys watching you come undone, from his fingers to his tongue, to his dick. saiki's a lowkey sadist, and so he adores likes pushing you past your limits, especially since you look so damn good fucked out, pupils blown and the dirtiest thoughts and images running through your head, urging him to pick up the pace as he forces you to take him all over again. is it any surprise that he'll mentally set a number and he won't stop fucking your bruised pussy until he reaches it? no, no it isn't. "don't lie, I know you can cum again, y/n, and I'm going to keep going— until you do."

➵ e for experience (how experienced is he? does he know what he’s doing?)

he has no experience, your body being the first he was ever comfortable to touch, that being said, it doesn't mean he's clueless. his telepathy comes in clutch, and your thoughts and desires, the ones you try so hard to control until he has you alone and you come undone under his gaze. they guide his hands as saiki squeezes your nipple between his thumb and index, watching as you writhe under his touch, overstimulated from how he's spent the better half of an hour teasing myou, making sure you're so far gone, that you practically sob when he finally pulls out his cock from the confines of his draws, he'll drag his length up and down your slit, tip catching on the hood of your clit, and when you slap a hand across your mouth to stop yourself from moaning too loud, he takes the chance to shove himself inside you in one go, and if you opened your eyes instead of squeezing them shut as you try and get used to the intrusion, you'd see the smirk twitching at the corner of his lips. "tell me how you want it, y/n. use your words."

➵ f for favourite position (this goes without saying. will probably include a visual)

this is a hard one for him, but if he really had to choose it would be fucking you standing up. the first time he tried it was in a storage closet at school. your idea of fun had been to sit behind him in class all day, thinking of the most indecent things he could do to you if he just made a move. he knew you were trying to get him to crack and make the first move like he did the first time he fucked you in that very same classroom. sure he had popped a boner, but he wasn't about to let you phase him more than that, saiki had self-control after all. he didn't. when lunch rolled around, you found yourself in the boys changing room, his fingers wasting no time to pull your panties to the side and shove his middle finger until it was buried to the knuckle inside your already wet cunt. and when he heard the thoughts of a group of people heading for the same room you were both in, his hazy brain supplied the closet as a hiding place, which was located in the far corner of the room and had been cleared out, pulling you in after him. said students entered, gossiping about what not as they looked for their misplaced belongings, but saiki wasn't paying attention, he was preoccupied with the way you were trapped against the back of the closet and his chest, looking up at him with pleading eyes, and damn, that self-control of his was hanging on by a mere thread. one that snapped when your hand found his, leading them to your cunt yet again. he didn't waste any time after that, pulling up your leg with one hand, using his pants zipper as an opening to get his dick out and line up with you, pushing in ever so slowly so you don't make too much noise and alert the others in the room. for a moment saiki wasn't sure what came over him, to risk exposure like this wasn't something he'd allow normally, and yet when he felt how deep he'd managed to get inside you from that angle, hitting a spot you let him know telepathically that he's never hit before, and the way your pussy quivered around the base of his length, gave him the answer, his tone barely above a whisper as he lowered his head to your ear. "you got what you wanted— happy?"

➵ g for goofy (is he more serious in the moment, or is he humorous, etc)

he's serious in the moment, maybe too much sometimes, to the point where every so often you'll wonder if he actually feels anything since his expression doesn't change much, even when he's fucking you into the mattress, one hand on your hip pushing you against his length, the other rubbing your clit so you can cum on his dick again. then, when the thought does cross your mind, even if you don't bring it up, he'll go out of his way to show you just how much you affect him. eyebrows furrowed, sweat coating his body as he fucks into you, lips parted ever so slightly, and if you listen closely and hold back your moaning, you'll hear the way he groans against your skin as he tries to hold back from filling you up with his cum right then and there. then again, he's not always serious, since he likes to talk to fill the silence, more like he enjoys the way you clench around him since you love the sound of his voice. "just like that. come on, y/n, cum for me."

➵ h for hair (how well groomed is he, does the carpet match the drapes)

he doesn't shave regularly, then again, he doesn't need to. you did ask him about it once since you swore you'd never seen him trim down there, and the monologue he went into breaking the fourth wall again as he explained how he used telekinesis to make sure he didn't develop a bush and halted the growth when it reached a certain length, truth be told you zoned out. you prefer him unshaven anyway, the happy trail of pink that goes past his sweatpants and makes your mind run wild when you catch sight of it every time his shirt lifts to show skin, the pink in general is such a pretty colour you can't imagine not seeing it every time he whips his dick out. of course, saiki knows this all too well with how he invades your mind with his telepathy, and it's the main reason he's opted to keep it.

➵ i for intimacy (how is he during the moment, romantic aspect…)

saiki isn't romantic with his words. ever heard of the saying, you don't have to say 'I love you', to say I love you? this man is the definition of show, don't tell, and even if the esper doesn't proclaim his love for you out loud from rooftops or skyscrapers, you see it clearly in the way he holds onto whatever part of you he can, pulling you impossibly close as he slowly grinds into you from on top, doing his best to drag out your pleasure, watching and listening for any signs of discomfort, and when he finds that one spot that has you seeing stars, he won't stop until your eyes roll to the back of your head and he's trailing kisses down your neck as you push against his hips with your palm to try and slow him down— and when you do, he'll grab your hand softly, intertwining your fingers and throwing it over your head before he's kissing you again and swallowing whatever sounds threaten to escape from your lips at his brutal pace. "shhh, I've got you. cum for me, y/n, just one more time. come on."

➵ j for jacking off (masturbation headcanon)

saiki doesn't really feel the need to masturbate, he's tried it before and realised that it only adds to his (horniness) frustrations. the only thing that really helps clear his mind is you, but that doesn't mean he doesn't jerk himself off. once in a blue moon when he's waiting for you to get back home and he can't wait, he'll sit in the dining room since the spot has the best angle of the front door, and he'll pull out his dick, stroking it slowly, tugging as he hisses under his breath. he'll let the burning in his stomach grow until it's all he can think about, barely noticing when you walk through the door only to trap you against the nearest wall, hands reaching under your clothes so you can feel what he's been struggling with until you showed up. once he's decided you're ready for him, he'll pull your pants down and panties to the side and fuck you like he can't think straight which he can't. "what took so long, y/n? you took a shortcut— didn't you? even after I told you not to… the next time I catch you doing it again, I won't let you cum."

➵ k for kink (one or more of his kinks)

saiki doesn't have kinks he does, he reckons his are the same as yours, since whatever you're into, he is too. though he won't ever say, the most turned on he's ever been is when he's fucking his cum into you, dick still sensitive from stuffing you full of his load, but the idea that this creampie might be the one that gets you pregnant, might be the one that makes you his completely, drives him insane. the first time you suggested that there wasn't a point in using a condom or birth control because you both were old and secure enough to try for a baby, he almost fucked you unconscious. 9 rounds later and he still couldn't get his dick to go down, surmising that the only thing that would satiate him would be when you were expecting. in short, saiki has a huge breeding kink. "no more, kusuo, I can't— please." "no. you can, and you will. you wanted this, remember?"

➵ l for location (favourite places to do the do)

saiki claims he doesn't have a favourite place, your bedroom or his— he doesn't care so long as he can have his way with you. what he refuses to disclose is his favourite place was that one time his friends had a get-together at a karaoke bar, and teruhashi was on her usual shenanigans, trying to woo saiki even after she knew the two of you were official. he had picked up on your insecurities and the hint of jealousy that lay beneath it, and when you left to order dessert for him at the front, he left the group not too long after, catching you in the hallway as you tried to figure out where to go, pulling you into an empty room, locking the door and turning the music on with his telekinesis, the song playing doing wonders to drown out the noises that escaped past your lips as he fucked you from behind and covered your mouth with his free hand for extra measure. he'd never admit, but your frantic thoughts of wanting to enjoy how deep he was hitting and how teruhashi could walk in at any moment, only fuelled his momentum until he was sure that the sound of his hips snapping into you was louder than the speaker of the room. "they— they'll notice, kusuo." "not… if you keep quiet, they won't."

➵ m for motivation (what turns him on, gets him going)

saiki swears you've messed up his mind— made him weird. before, it was you thinking about sex and nothing else in his vicinity that would get his stomach burning until he was thinking about it too, and then he'd fuck you into the sheets until you were satisfied before he went back to whatever he was doing before he was balls deep inside you. now, a mere touch is enough to set him off. from you ghosting your fingers over his back and under his shirt when you're scrolling through the internet, to an innocent look shot his way from across the room when he's busy and you're checking in with him, anything is enough to set him off when he's with you. it was a setback, sure, and it hindered his life every now and then until he took care of the problem. except it's gotten to the point where saiki can't stand not touching you, or being in your immediate vicinity. so now, on your days off, saiki chooses to pull you onto his lap, keeping you there and shoving his dick inside you, multitasking until you decide you can't take it anymore and try and grind against him, only for him to hold your hips in place immediately, your cunt clenching around the base of his cock until the esper decides he'll give into your wants. in short, you make saiki horny and his solution for it is cockwarming.

➵ n for nicknames (what are his favourite pet names for you? what does he call you when you’re both alone?)

truth be told, he doesn't really use nicknames for you, he prefers your name, using it to command your attention when you're drunk on his dick and struggling to take what he gives. from time to time though, he'll let one slip past his lips, enjoying how you clench around him, so close to your release, only for him to shoot you a small smirk and pull out completely so he can admire the way you whine for him to put it back in, smug from how utterly pretty you look drooling over his cock.

"struggling? that's too bad, we're nowhere near finished— be a good girl and behave for me, and I might let you cum again."

➵ o for oral (preference in giving or receiving, skills, etc)

at first, saiki preferred sex by itself and didn't see the need to give or receive, until you asked if he could try eating you out. the first time he did, he thoroughly enjoyed every second, watching as you writhed under his tongue. thinking back to it, maybe it was the way you pulled on his pink locks every time he paid any attention to your clit, or the way you tried to push him away, only for him to grab your thighs and force you to ride out your high on his tongue until you came again. or maybe it was how quickly you came undone, struggling to form sentences. all he knows is when he has the time for it, he'll make you cum on his tongue before he plugs you up with his dick. "wake up, y/n— don't pass out just yet. we're nowhere near done."

➵ p for pace (is he fast or rough? slow or sensual?)

he's both, it's whatever the mood calls for and how mean he's feeling. but he's mostly fast and rough the first few rounds, setting a punishing pace as he holds your hands above your head, forcing you to take every inch, that way he can watch how your face contorts in pleasure at all he's giving you. then, when you've come however many times, he'll grind into you instead of snapping his hips into yours, enjoying how you squirm, only going back to his rough pace when you beg him to. "and here I thought you said you couldn't go another round. what happened, y/n?"

➵ q for quickies (his opinions on quickies rather than proper sex, how often, etc)

saiki prefers real sex any day over quickies, but with how busy life gets, sometimes that's all he has time for. he loves fucking you whenever he can no matter where you two are, since he can always teleport you to his place to take you against whatever wall is closest, so the want he feels for you subsides at least a little until he can fuck you properly like you deserve. he won't ever tell you this, but sometimes he prefers quickies over real sex, if only to watch you struggle to do whatever menial task calls your attention as you struggle to walk around the house with him thrusting into you from behind, he goes out of his way to fuck you as hard as he can so your legs give out, only for him to lower himself onto the floor and fill you up again with his dick as you try to crawl away. "where do you think you're going? we're not finished."

➵ r for risk (is he game to experiment, does he take risks, etc)

you were the one who taught him what intimacy was, beyond what he learnt in sex ed, and his vast knowledge of pleasure is thanks to you being patient until he picked up things by himself. so in essence he's game for experimentation so long as it's not too weird. now, when it comes to risk, saiki would rather avoid it, public sex and so on, since he has an allergy to being the centre of attention— that doesn't mean he hasn't chosen to fuck you in the worst situations, using his powers like invisibility as a fail-safe. like the time he fucked you in an alley on the way to a date, he made the conscious decision mistake of ghosting his hand over your thigh, before stroking the skin softly until your mind was running wild on the train, only to beg him to do something because you couldn't handle going the rest of the day without him taking responsibility. and responsibility he took, pulling you into an alley behind a dumpster, using his power over invisibility to stop anyone from seeing how fucked out you were when he pulled your panties to the side, only to slide in with no resistance, pussy pulsing around his dick as he swallowed your moans by moving your face to the side so he could kiss you from behind. "they can't see, but they can hear you. unless you want me to stop y/n, I suggest you try and keep quiet."

➵ s for stamina (how many rounds can he go for, how long does he last)

the answer to this one isn't simple, since saiki has the libido of a horse. the highest number you can remember is 16, but then again, you stopped counting halfway through the night and then picked up with whatever number you left off at 7 in your mind, 11 in total. considering how high your sex drive has gotten since saiki made you his, you assumed you'd be able to handle it, and the esper would be the one struggling, yet it's the opposite and no matter how you try, it seems saiki is always insatiable. all because he can't get enough of you, and since saiki thinks it's your fault he's become like this to begin with, you pay for it. "don't pass out just yet, I expected better y/n— with how you tried to tease me earlier."

➵ t for toy (does he own toys? does he use them? partner or himself?)

he doesn't own any toys, and the old vibrator you used before him is lost somewhere in storage since saiki knows he can please you better than any toy, and if he's not there, then you can wait until he comes back and finally fucks you. masturbating would be an option but saiki prefers you pent up so when the two of you get a moment alone you're so far gone he can have his way with you, teasing you for hours on end, and every time you whine or sob, he'll remind you that the wait is worth it as he shoves his cock back in, hissing at the way you clench around him before leaning down to kiss you and swallow your cries of relief when he fills you up— that, and saiki's fingers can double as a vibrator if you want them to so there's always that option. "come on, don't cry now— cum for me one more time and I'll give you what you want."

➵ u for unfair (how much does he like to tease)

he's very unfair but your opinion may be biased, since everything he does even if it's innocent it's not, but you don't need to know that just adds to your frustrations. like when he's enjoying whatever dessert he's managed to get his hands on, he always licks the spoon after every bite, and truth be told it does things to you, especially when he picks up on your staring, and makes eye contact with you as he cleans his utensil. at least, it always ends with you getting your brains fucked. you can't really complain when you're draped over his thighs as he forces you to ride him, deciding you're too slow and taking over as he snaps his hips up into you until you swear you can feel him in your gut. all the while, he'll take his sweet time, teasing that one spot that has your eyes rolling back until he works up the pace to just fuck you until you can feel his tip slamming into your cervix. the cherry on top is how he acts like he doesn't know damn well why you're so horny for him. "i barely did anything and you're dripping all over the floor… why, y/n? care to enlighten me?"

➵ v for volume (how loud is he? what sounds does he make?)

he's not loud, he talks but you rarely hear him feeling good. that's what makes it better in your opinion, since when he does make even the slightest noise, it goes straight to your pussy and it's enough to push you over the edge. so the few times when he's fucking into you, hand over your mouth so no one else can hear how good you're feeling from his dick, the other holding your hip in place so he can push into you nice and slow. when you clench around him, and he buries his head in the crook of your neck, soft groans escaping him at how tight you are, you cum on the spot, the last string of your sanity snapping, and it only spurs him on, his volume increasing if only by a little, moaning quietly as he loses himself to the pleasure, his thrusts speeding up, not giving you a chance to come down from your high when you feel another orgasm building up. "that's it, just like that y/n. cum for me again."

➵ w for wildcard (random headcanon for him)

saiki always cleans you up first, whether it's tissues on hand or a wet cloth, he'll make sure to wipe you down first and clean up after you before he fixes his own image. you don't pick up on it straight away, mostly because of how fucked out you are after, but the one time you do, it melts your heart instantly. it's not a huge gesture but it still pulls at your heartstrings as you watch him carefully wipe away the cum from your thighs, ignoring how he raises his eyebrow at your epiphany, rolling his eyes afterwards. "it's not a big deal, stop giving me googly eyes." "wha— well, I never." "…you need to stop watching that bridgerton stuff and go out for once, hug a tree or something."

➵ x for x-ray (what’s going on in those pants of his)

he's not big, or small, to be honest, the first time you got a good look at saiki's dick, you were sure it was perfect, like the size and look. his dick is pale, like his skin but his tip is always an angry red when he's hard, and it manages to kiss your cervix every time he's fully buried inside you, and his size is big enough that you can see a slight bulge in your stomach when he's inside you. correction, his dick is perfect for you.

➵ y for yearning (how high is his sex drive)

yearning, well it's not exactly yearning for saiki. it's much more than that, it's wanting to swallow every sound that leaves your lips in fear someone else might hear. like his inability to voice how much you mean to him is let out in the way he zeroes in on every thought going through your head, the mental images spurring him on to kiss you, touch you, ruin you until all you can think of is how good you feel, holding back from filling you up right then and there because you need to be utterly gone for him to be satisfied.

it's definitely more like needing to feel you clenching around him, the desire the only thing he can focus on to the point where the voices of all those strangers he hears every second he's awake is dulled, like you've tuned out some radio until all that's left is the sounds you make as he fucks into you like he's finally snapped and thrown all sense out the window, drunk on your body (which to be fair, he is). more like wanting to pull you impossibly close, your warmth nearly scorching him and all it does is add to the pit of fire rising in his stomach with every thrust into your cunt. it's more like wanting so badly with every fibre of his being to explain what it is he feels for you, and it definitely can't be described with a simple term like yearning, because if he could describe it saiki is sure he burns for you.

his sex drive is very high. saiki has enough energy that even you struggle, and that's saying something with how horny he gets you just by existing. and yet, you're the first one to tap out, albeit after the 9th or 10th round of cum he fills you with, but still. you have to live with the fact that he can fuck you until you pass out and come to again, but you're not complaining. surprisingly, saiki is almost always unstable until you're completely ruined and all you can think about is his dick. the only time he'll ever stop is when he knows you can't take anymore, telepathy always comes in hand for that.

"one more round— just one more and you can go back to working."

➵ z for zzz (how quickly does he fall asleep afterwards)

after the lust subsides, when the haziness clears up and he's no longer pussy drunk, saiki is always ready to pass out. all he wants to do after he's emptied his balls into you, is to pull you close and shut his eyes until the next day. but if there are things he needs to take care of or you want to talk about whatever new thing you're hyper-fixated on, he'll stay awake until you're ready to go to bed. "don't you get tired of scrolling through tiktok and forcing me to react to those weird reddit stories?" "never!" "fine, but if I don't wake up tomorrow, you'll pay." "your empty threats would sound a lot more frightening if you weren't trying to bury your head in my tits."

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2024 taglist:

@bre99 @mindless-rock @skylarmoon119 @sle3pyh3ad2 @mylovelysnowflake @alicekumori @imkumichan @lvvcian @hyejoolips @citrusequalsfrogs @tsukikoxo @thecaminator @heartsatoru @poisonapple24 @itsluvly @shirozukie2

#saiki x reader #saiki k #saiki k x reader #saiki kusuo x reader #saiki kusuo #the disastrous life of saiki k.#x reader #saiki smut #smut

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