FDA Certified
human!haechan x vampire!afab!reader
summary: haechan will not stop begging you to feed off of him a/n: hiiii welcome to the newest spooky fic. i thought it would be funny to make haechan a human and switch things up for a change. hope you like it and stream taste by haechan! (didn't proofread- work is so busy) cw: (minors dni) smut, vampirism, reader feeds off of haechan, soulmate!haechan, bigdick!haechan, unprotected p in v (just always expect this from me but be safe!!), creampie, fluff wc: 4k
Finding blood now is probably the easiest itâs ever been. As you got older, you eventually tired of draining people and trying not to get caught, moving from town to town, but you did what was needed to survive. Now in the year 2025, there were blood bars chock full of willing participants, people who volunteered their blood for the sake of the survival of vampires like yourself.Â
You are the co-owner of one of the top blood bars in the city, Diablerie. Technically, you donât need a job, so you started the bar more out of boredom than anything else, and while a lot of your employees are vampires, a few of them are human. Like Donghyuck.Â
Donghyuck is the most insane human youâve met in your over 300 years of living. Heâs also obsessed with you.Â
âDonghyuck, go do your job-â you monotone from your desk.Â
âBoss, Iâve told you a million times- call me Haechan. Itâs what all my friends call me,â he smiles.Â
âWe arenât friends.â
âBut we could be-â he singsongs as he bats his eyelashes at you from the doorway.Â
âGo away, Donghyuck,â you try again, not bothering to look up at him.Â
âAre you hungry boss? You can feed off of me, you know! Iâve already been tested, and Iâm AB positive which a little birdie told me is your favorite!â heâs practically begging at this point.Â
Youâre saved by Jaemin, the human youâve hired to be the manager.Â
âHaechan, come on. The kitchen needs your help,â he says, grabbing the menace by his collar and closing your office door. Gotta love Jaemin.Â
Aside from Donghyuckâs usual flirtations, your Friday night was going swimmingly. The bar is full of vampires and humans alike, everything running smoothly. Although apparently the universe thinks you can never have anything nice because thereâs a drunk human whoâs being reckless. Youâd think this wouldnât be a problem, but some vampires liked to have blood with some alcohol in it since regular alcohol did nothing for them. It might not be entirely worth it since having drunk humans around can lead to situations like this.
âBoss, thereâs another rumdum on the floor, and Jaehyun stepped out to run an errand,â Jaemin says as he walks into your office. You sigh and get up letting him lead you to the culprit.
âYou fucking blood suckers! You deserve to go to hell!â the man yells as he sways.
You roll your eyes, but then this man seemingly sobers up upon laying eyes on you, now appearing much bigger. All of a sudden, he pulls out a wooden stake and charges at you, catching you off guard. Youâre in shock, and he moves to kill you and honestly wouldâve gotten very close if it werenât for Donghyuck appearing out of nowhere and shoving him onto the ground, beating the shit out of him. Heâs dealing blow after blow, yelling about how the man needs to learn his place and shouldâve never fucking tried it.
âDonghyuck, stop!â Absolutely no response.
âDonghyuck!â Still nothing.Â
âThatâs enough!â you yell and yank him off the insane mortal who is likely regretting his stupid decision to try to kill you.
âAre you okay, boss?â Donghyuck takes your face in his hands as he comes back down to earth and remembers you couldâve been killed.Â
You are very grateful that you are incapable of blushing or having your face heat up because you feel slightly flustered at him saving you despite just being a regular human. Donghyuck sticks as close to you as possible as you try to do your work and is extremely concerned for you, suggesting you leave early. Actually a more apt description is he followed you around for around 45 minutes after the incident and begged you to leave, which is a sentiment that Jaemin echoes. The gesture is nice, though you donât have the heart to tell the both of them that they are far more susceptible to being hurt than you are. You appreciate the thought, though, and decide to go for their sakes once your co-owner returns.
âReady to go, boss?â Donghyuck says.
âReady to go?â you repeat confused.
âYeah, Iâm walking you home,â he says matter-of-factly.
âOh- um, you donât have to do that, Donghyuck- thanks though.â
âUnfortunately for you, boss, Iâm not taking no for an answer.â
It was nice to have a companion after an attempt on your life, however, you did not realize in the moment that this was, in Donghyuckâs mind, an âinâ with you.Â
Two months had passed since that night, and he was still walking you home every day after work. For the most part, you were surprised to find that the two of you had plenty of pleasant conversations, talking about mutual interests and sometimes incredibly deep conversations that would last until sunrise was on the horizon, putting an end to anything you were saying. It wasnât that you would be sleeping either, but it felt like a good boundary to have. Youâd always be on your front porch chatting it up, and you would never let him in because- at the end of the day, heâs your employee and while you donât technically have an HR department, you still donât want to cross that boundary especially when heâs so young.
However, not every walk was peaceful. A lot of times even if the majority of your walk was peaceful, he would be begging you to feed on him. You think he must have a vampire kink which is possible. A lot of donors do tend to have a vampire kink, and youâve heard the sensation can be incredibly arousing for a lot of them. Whatever it takes for you to get to where you wanna go- you donât judge. You donât care for the reason that the donors do it as long as theyâre doing it. Youâve told Donghyuck time and time again that he should just be a donor if he wants it so bad.
âPlease feed off of me boss-â heâs walking backwards directly in front of you, two seconds from falling over something in his way.
âDonghyuck- if you want to be fed off of, you should just donate,â you sigh.
âIf I donate, will you feed off of me? Because Iâll sign the papers right now.â
Day after day, you were propositioned by Donghyuck to suck his blood, and day after day, you denied him. He was definitely never giving up- that man is resilient. However he didnât need to wait very long to get you because today- you were having a bad day.Â
There were a million obstacles that got in between you and getting to the bar on time for you, including being out of blood at home. You decided that youâd eat at work only to find out that a lot of your donors had pulled out that night since there was a stomach flu going around. Even with your reserve volunteers, you were going to be short tonight meaning youâd have to close early. You were so stressed and it felt like you were running around like a chicken with its head cut off.Â
Finally, after closing early, you were excited to go home and hope for the best for the next night and gather your bearings. Jaehyun said he had a connection and could get more donors to cover those missing. You were walking up to your house alongside Donghyuck when you suddenly felt very weak. In all of the hubbub, you had forgotten to feed. Even if you hadnât forgotten it you probably would have forgone it seeing as the bar needed as much blood as it could get.
You put a hand on Donghyuckâs shoulders as you feel yourself getting weaker and weaker.Â
âBoss? Is everything okay?â
âForgot to feed. Donât have any blood at homeâŚâ you mumble feeling weaker as every second passed.Â
âBoss, seriously?? You need to feed now!â he helps you up and into your home, gently sitting you down onto your couch. Donghyuck rolls up his sleeve and puts his arm in front of your mouth so you can feed but you arenât budging. Heâs confused and doesnât understand why you arenât doing anything.
âDonât tell me youâre being this stubborn, boss,â he rolls his eyes and looks around, getting up and coming back with a knife. He knows you wonât be able to hold back if you can smell the blood coming out. He makes a small cut on his arm, just enough to bring some blood out and watches as you still try to fight it.Â
âCome on, boss, you know you need me- just do it. Use me.â
His words are enough to send you forward latching onto his arm and finally having a meal. What you do not expect is how delicious his blood would be. That shit goes hard. Itâs sweet and flavorful and it's better than any blood youâve ever had. You honestly feel like you could feed off of him forever. If you were able to get into heaven, youâd swear this is it as you feel the warm blood traveling down your throat. Another thing is youâre kinda⌠horny. Like it feels like your body is on fire and all of your cells have been turned up to 100% sensitivity.Â
Donghyuckâs doing about the same as you. He had been a donor before he officially started working at the bar, and he knew that being a donor came with some physical side effects. A lot of people definitely got horny and while it felt really good physically, he was never really affected that way. But right now he was in another world. His eyes were closed at the sensation of you feeding off of him, and he could feel himself getting harder by the second, fighting the urge to touch himself through his pants. There was this buzz throughout his body that was unlike anything heâd ever felt before, as if his body was vibrating.Â
You luckily had a sense of self control and were able to stop at the very minimum amount of blood that you could take and feel full, but that was the best fucking blood youâve ever had and you still feel like youâre in a hungered state. You look up to see how Donghyuckâs doing. His eyes are hooded and you can see that heâs hard through his black work pants. He looks so good to you right now but not only in terms of feeding off of him, you really wanna jump his bones. You both stare at each other for a beat before he jumps towards you attacking your lips.Â
Heâs a mess and desperate and his hands are everywhere. His mouth is aggressive, and heâs grinding up against you, whining. You pull away but he just resigns himself to move to your neck leaving wet open mouthed kisses, even biting a little bit making your back arch and tearing a whine out of you.Â
âDonghyuck.â you try and he just hums still desperately leaving kisses on every exposed piece of skin.Â
âDonghyuck!â you try again and you donât even get a response this time.Â
âHaechan!â you yell as you pull him off you by his hair. He is so far gone, his pupils dilated, but there is some level of recognition because he says:
âDid you just call me Haechan?â
âYes, we need to-â
âIâm going to fuck the shit out of you-â he goes to kiss you again but you still have a hold of his hair. The attempt makes him moan again.
âOkay, but can we move to my bed please?â you smile sweetly. You get up and take his hand, leading him to your room where he proceeds to push you down onto your bed and resume kissing you as passionately as possible, but now his hands know exactly what theyâre doing and he starts taking all your clothes off, leaving you bare for him. He starts kissing down your body, eager to get started, and you whine.
âHaechanâŚâÂ
âIf you keep saying my fucking name like that, Iâm gonna cum,â he says seriously as he arrives at his final destination, leaving a kiss on your clit. He watches you squirm a bit but doesnât allow for a lot of time before diving into you and sucking on your clit, fucking one finger into you.Â
âHaechan,â you whine, âPlease. You can do this next time. I just want you to fuck me-â
âThereâs gonna be a next time?â his voice cracks at the comment before remembering what heâs there to do. âIâm not doing this for no reason, boss. I need to stretch you out to take me,â you clench at the implication that heâs big as he inserts another finger. He continues adding fingers, only increasing your wetness thatâs now making a horribly sinful squelching noise as he fucks four fingers into you.Â
âHaechan I think Iâm ready now- please. I need you.â Upon hearing that, heâs completely ready and desperate to be inside you and give you what you want.
Haechan grabs a hold of your legs spreading you for him and pushing them towards you. He slides into you faster than he means to and moans and whines and immediately begins thrusting hard, absolutely losing himself in you not knowing what to do with himself. You feel so good, and he feels bad because heâs so big but he canât help but pound into you. Heâs so so needy and rams into you with his eyes squeezed shut as he tries to focus on not cumming immediately because oh my god youâre so hot and heâs wanted you for so long and he canât believe this is happening.Â
âIf this is just another dream, I'm going to be pissed,â the needy human groans, lost in how tight you are around him. You're so confused at the comment, and he sees it when he opens his eyes to look at you.Â
He blushes and says, âIâve had so many dreams about you, boss, and in all of them, we end up here. But fuck this feels better than I couldâve ever imagined.â
Knowing heâs been dreaming about this makes your whole body shudder. He notices that you must be getting close and fucks into you harder as his thumb goes to rub your clit.
âYou always made the sweetest noises for me in my dreams, baby. You always felt and looked unreal, but after seeing you now,â he moves so that his lips ghost over your ear, âdream you could never compare to the real thing.â
âHaechan, Iâm gonna-â
âYes, please let go for me, baby. Let me feel it, let me feel you. I need you. I need to feel it. I'm so desperate to feel you cream my cock, please let go for me, give it all to me-âÂ
His words send you shooting into space, your walls squeezing him so tight and your body convulsing with pleasure. This is certainly a night of firsts, and youâre sure this is the strongest orgasm youâve ever had.Â
Post nut clarity is crazy because while yes, you definitely had an inappropriate relationship with your employee, you actually really donât care and are desperately craving both his blood and his cock. What you are concerned about is how badly youâre craving his blood and how out of this world the taste was.
âJaehyun, have you ever had some, like- really fucking good blood?â You had asked Jaehyun to deal with everything for the night so you wouldnât have to go to work (or see Haechan). He was now sitting on your couch because it was so unlike you to call out, so he had to make sure all was well.
âI mean, like blood preference? Yeah, I fucking love O negative- you know this?â he says confused.
âNo like- Fuck, Iâm going crazy-â you groan, putting your head in your hands.
âWhat?â he laughs trying to understand, until a realization washes over him. âWait⌠is this about Haechan? Did you feed off of him??â
âSHUT UP!â you yell, throwing a couch pillow at him.
âOh my god- no wonder he was asking me to beg you to come backâŚâ
âYou canât tell anyone, Jae,â you beg.
âY/N, who am I going to tell?â he laughs.
âFine, fine, fine. I hooked up with Haechan last night and fed off of him, and it mightâve been the best blood I've ever tasted. Like ever. Iâm talking liquid crack. Like straight up gold coming out of him.â you ramble.Â
âWha-â
âAnd I have fed off of other people I find attractive before so that's not it.â
âWhoa.â
âHelp,â you squeal.
âHow am I supposed to help?â he asks incredulously.
âCan you maybe feed off him to see if maybe he just has really yummy blood?â
âYou want me to feed off of Haechan?â
âYes Jae, please,â you cry, being as dramatic as possible, âIâve done you so many favors since I've known you.â
âFine,â he groans. He can never say no to you.
He calls you about an hour later.
âIt took me manipulating our employee, but I can report- his blood is basic as shit.â
âFuck!â
âOk so⌠are you gonna call Taeyong?â
âFuck, I donât wanna do this,â you whine.
âIf you donât, I will,â he says and you can hear the shit-eating grin on his face.
âFuck, fine!â
Now you find yourself at Taeyong's front door. Heâs the head of your coven, though, it's been a while since youâve all had a meeting. Heâs always been very old school so he didnât love the idea of a blood bar. That didnât stop him from being supportive from afar.
You softly knock on the door.
âHi Taeyong-â you start when he opens the door.
âJaehyun filled me in.â
âThat bitch,â you mutter.
Tell me in your words though,â he says as he lets you in.
âHm.â
âThatâs all you have to say?â you ask slightly annoyed.
âWell I know you know what I'm going to say,â he says standing up to look out the window.
âI've just- I thought soulmates were something you talked about as a joke.âÂ
âDo you think I warned you about being wary of the humans you feed off of for the fuck of it?â
âIâve just never met anyone who had a soulmate,â you respond.
âHave we not met?â
You freeze at what heâs insinuating. âYou⌠have a soulmate?âÂ
âHad.âÂ
âOh, Taeyong. I'm sorry,â you say softly. He turns and sees that you really mean it, a soft smile making its way to his face. He sits next to you, taking your hands in his.
âItâs okay. It was a long time ago, shortly after I was turned. I wanted to turn him, but he didnât want to be doomed to this life. I had no choice but to accept that because⌠I love him. I loved him until the day he died. Legend says we all have multiple soulmates since we live so long but- there will only ever be one for me.â
âIâm so so soooo sorry, Taeyong,â you give him a hug, holding back tears on his behalf. âThank you for talking to me and trusting me with this information.â
âOf course. You need to be wise, though. Whether or not he wants to be turned, I recommend you love him for as long as you can.â You stay and catch up a little bit longer and offer to send a donor to him every once in a while, so he doesnât have to hunt. Heâs still super old school, but he tells you heâll think about it. You slowly make your way back home, taking the long way.Â
Donghyuck. Haechan. That dweeby desperate little human whoâs been obsessed with you since he met you. He is your soulmate. A concept that you didnât even know was real, especially not for someone like you.Â
How do you break it to him? What do you even say? Before you know it, youâre walking up to the bar. You donât know why youâre here. Itâs the end of the night so heâs probably already gone. You sigh and start walking home when from behind you, you hear, âBoss?âÂ
When you turn around, Haechan is running towards you and wraps you up in the tightest hug.Â
âI missed you so much.â
You laugh a little bit and reply, âI missed you, too!â
He is still hugging you as tight as can be, but he moves to nuzzle into you.
âCan I walk you home?â he mumbles into your neck.
âOkay.â
When you pull up in front of your house, you blurt out, âI have something I need to tell you.â
âYou can tell me anything,â he comforts.
âWhat do you know about vampires?â
âI know that a human gets turned by feeding off of another vampire. You're basically invincible and incredibly strong and fast. You canât go out in the daytime unless itâs cloudy or raining. You feed off of humans, and in the olden days, they would drain humans entirely.â
âOkay well thatâs pretty good. One additional thing is that vampires have soulmates, mortal soulmates. A big tell for a vampire when they meet their soulmate is that upon feeding on them, itâs the best tasting blood ever. Thereâs a lot of other little things besides that, but the vampire will feel very drawn to their soulmate at all times after the first feed and the same goes for their counterpart.Â
âOkayâŚâ he says hesitantly.
You stay quiet not knowing how to break it to him, hoping that the silence in the air is enough to make it click.
âAre you saying that I'm your⌠soulmate?â
You brace for impact and close your eyes to avoid eye contact entirely when you say, âYes, I- I think you are.â
âOh. My. God! This is the best day of my life!â You open your eyes and see Haechan pumping his fists in the air jumping around, excited about this announcement.
âItâs not that simple, Haechan.â
âWhat do you mean? Youâre my soulmate. Seems pretty straightforward to me,â he shrugs
âYouâre a human-â
âOkay.â
âIâm a vampire.â
âOkay? I know this boss.â
âIâm immortal, and-â your mouth struggles to say the next words, âand⌠one day youâre going to die.â
âSo turn me,â he says casually.
âYou canât just make a decision like this so offhandedly! Donât you wanna think about it?â At that, Haechan puts his hands on your shoulders, focusing you to look at him.Â
âAre we or are we not soulmates?â
âYesâŚâ you mumble.
âOkay, there you go. Even if we werenât, I would marry you right now. Have you not noticed Iâm actually pretty fucking insane about you? There is nothing calm or cool or chill about the way I feel about you. I mean- I was throwing myself at you for months! I've been ready to spend the rest of my life with you since the day that I met you,â he says, taking your hands in his.Â
âI thought you were just insane in general,â you joke to deflect.Â
âIâm sure about this, darling. I promise.â
You lead him into your home and ask him about a million more times if heâs okay with this. He assures you every time that he wants this, wants you. The whole situation feels very intimate. The last person you turned was Jaehyun and it felt nothing like this.
Once heâs fed off of you enough to turn, youâre playing with his hair as his head lays in your lap, and he adjusts to all the new sensations that come with being undead. Then, he whines, and youâre terrified that he already regrets his decision.Â
âWhat- whatâs wrong?â
âDoes this mean youâre going to feed on other people?â he whines.Â
âHaechan, Iâve already been feeding on other people-â you laugh.Â
âBut now you have me,â he pouts.Â
âAre you feeling jealous?â you tease.
âYes, Iâm so obviously jealous. I have every right to be! I donât want your mouth on anyone else!â
âWell, hereâs a little known secret- vampires can feed off of each other,â you smirk.Â
âOh thank god- I love this, I love you, Iâm so glad. I love you I love you,â he shoots up to give you a smooch. âIâm going to make you so full.â You almost moan at the double entendre.
âJust consider me your universe-given, FDA-certified blood bag.â he smiles before attacking you with kisses.Â
divider by @strangergraphics








