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 it’s 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.
You are the co-owner of one of the top blood bars in the city, Diablerie. Technically, you don’t 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.
Donghyuck is the most insane human you’ve met in your over 300 years of living. He’s also obsessed with you.
“Donghyuck, go do your job-“ you monotone from your desk.
“Boss, I’ve told you a million times- call me Haechan. It’s what all my friends call me,” he smiles.
“We aren’t friends.”
“But we could be-” he singsongs as he bats his eyelashes at you from the doorway.
“Go away, Donghyuck,” you try again, not bothering to look up at him.
“Are you hungry boss? You can feed off of me, you know! I’ve already been tested, and I’m AB positive which a little birdie told me is your favorite!” he’s practically begging at this point.
You’re saved by Jaemin, the human you’ve hired to be the manager.
“Haechan, come on. The kitchen needs your help,” he says, grabbing the menace by his collar and closing your office door. Gotta love Jaemin.
Aside from Donghyuck’s 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 there’s a drunk human who’s being reckless. You’d think this wouldn’t 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.
“Boss, there’s another rumdum on the floor, and Jaehyun stepped out to run an errand,” Jaemin says as he walks into your office. You sigh and get up letting him lead you to the culprit.
“You fucking blood suckers! You deserve to go to hell!” 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. You’re in shock, and he moves to kill you and honestly would’ve gotten very close if it weren’t for Donghyuck appearing out of nowhere and shoving him onto the ground, beating the shit out of him. He’s dealing blow after blow, yelling about how the man needs to learn his place and should’ve never fucking tried it.
“Donghyuck, stop!” Absolutely no response.
“Donghyuck!” Still nothing.
“That’s enough!” you yell and yank him off the insane mortal who is likely regretting his stupid decision to try to kill you.
“Are you okay, boss?” Donghyuck takes your face in his hands as he comes back down to earth and remembers you could’ve been killed.
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 don’t 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.
“Ready to go, boss?” Donghyuck says.
“Ready to go?” you repeat confused.
“Yeah, I’m walking you home,” he says matter-of-factly.
“Oh- um, you don’t have to do that, Donghyuck- thanks though.”
“Unfortunately for you, boss, I’m not taking no for an answer.”
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 Donghyuck’s mind, an “in” with you.
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 wasn’t that you would be sleeping either, but it felt like a good boundary to have. You’d always be on your front porch chatting it up, and you would never let him in because- at the end of the day, he’s your employee and while you don’t technically have an HR department, you still don’t want to cross that boundary especially when he’s 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 you’ve 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 don’t judge. You don’t care for the reason that the donors do it as long as they’re doing it. You’ve told Donghyuck time and time again that he should just be a donor if he wants it so bad.
“Please feed off of me boss-” he’s walking backwards directly in front of you, two seconds from falling over something in his way.
“Donghyuck- if you want to be fed off of, you should just donate,” you sigh.
“If I donate, will you feed off of me? Because I’ll sign the papers right now.”
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 didn’t need to wait very long to get you because today- you were having a bad day.
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 you’d 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 you’d have to close early. You were so stressed and it felt like you were running around like a chicken with its head cut off.
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 hadn’t 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 Donghyuck’s shoulders as you feel yourself getting weaker and weaker.
“Boss? Is everything okay?”
“Forgot to feed. Don’t have any blood at home…” you mumble feeling weaker as every second passed.
“Boss, seriously?? You need to feed now!” 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 aren’t budging. He’s confused and doesn’t understand why you aren’t doing anything.
“Don’t tell me you’re being this stubborn, boss,” he rolls his eyes and looks around, getting up and coming back with a knife. He knows you won’t 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.
“Come on, boss, you know you need me- just do it. Use me.”
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. It’s sweet and flavorful and it's better than any blood you’ve ever had. You honestly feel like you could feed off of him forever. If you were able to get into heaven, you’d swear this is it as you feel the warm blood traveling down your throat. Another thing is you’re kinda… horny. Like it feels like your body is on fire and all of your cells have been turned up to 100% sensitivity.
Donghyuck’s 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 he’d ever felt before, as if his body was vibrating.
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 you’ve ever had and you still feel like you’re in a hungered state. You look up to see how Donghyuck’s doing. His eyes are hooded and you can see that he’s 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.
He’s a mess and desperate and his hands are everywhere. His mouth is aggressive, and he’s 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.
“Donghyuck.” you try and he just hums still desperately leaving kisses on every exposed piece of skin.
“Donghyuck!” you try again and you don’t even get a response this time.
“Haechan!” 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:
“Did you just call me Haechan?”
“Yes, we need to-“
“I’m going to fuck the shit out of you-” he goes to kiss you again but you still have a hold of his hair. The attempt makes him moan again.
“Okay, but can we move to my bed please?” 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 they’re 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.
“Haechan…”
“If you keep saying my fucking name like that, I’m gonna cum,” he says seriously as he arrives at his final destination, leaving a kiss on your clit. He watches you squirm a bit but doesn’t allow for a lot of time before diving into you and sucking on your clit, fucking one finger into you.
“Haechan,” you whine, “Please. You can do this next time. I just want you to fuck me-”
“There’s gonna be a next time?” his voice cracks at the comment before remembering what he’s there to do. “I’m not doing this for no reason, boss. I need to stretch you out to take me,” you clench at the implication that he’s big as he inserts another finger. He continues adding fingers, only increasing your wetness that’s now making a horribly sinful squelching noise as he fucks four fingers into you.
“Haechan I think I’m ready now- please. I need you.” Upon hearing that, he’s 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 he’s so big but he can’t help but pound into you. He’s 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 you’re so hot and he’s wanted you for so long and he can’t believe this is happening.
“If this is just another dream, I'm going to be pissed,” 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.
He blushes and says, “I’ve had so many dreams about you, boss, and in all of them, we end up here. But fuck this feels better than I could’ve ever imagined.”
Knowing he’s 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.
“You always made the sweetest noises for me in my dreams, baby. You always felt and looked unreal, but after seeing you now,” he moves so that his lips ghost over your ear, “dream you could never compare to the real thing.”
“Haechan, I’m gonna-“
“Yes, 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-”
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 you’re sure this is the strongest orgasm you’ve ever had.
Post nut clarity is crazy because while yes, you definitely had an inappropriate relationship with your employee, you actually really don’t care and are desperately craving both his blood and his cock. What you are concerned about is how badly you’re craving his blood and how out of this world the taste was.
“Jaehyun, have you ever had some, like- really fucking good blood?” You had asked Jaehyun to deal with everything for the night so you wouldn’t 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.
“I mean, like blood preference? Yeah, I fucking love O negative- you know this?” he says confused.
“No like- Fuck, I’m going crazy-” you groan, putting your head in your hands.
“What?” he laughs trying to understand, until a realization washes over him. “Wait… is this about Haechan? Did you feed off of him??”
“SHUT UP!” you yell, throwing a couch pillow at him.
“Oh my god- no wonder he was asking me to beg you to come back…”
“You can’t tell anyone, Jae,” you beg.
“Y/N, who am I going to tell?” he laughs.
“Fine, fine, fine. I hooked up with Haechan last night and fed off of him, and it might’ve been the best blood I've ever tasted. Like ever. I’m talking liquid crack. Like straight up gold coming out of him.” you ramble.
“Wha-”
“And I have fed off of other people I find attractive before so that's not it.”
“Whoa.”
“Help,” you squeal.
“How am I supposed to help?” he asks incredulously.
“Can you maybe feed off him to see if maybe he just has really yummy blood?”
“You want me to feed off of Haechan?”
“Yes Jae, please,” you cry, being as dramatic as possible, “I’ve done you so many favors since I've known you.”
“Fine,” he groans. He can never say no to you.
He calls you about an hour later.
“It took me manipulating our employee, but I can report- his blood is basic as shit.”
“Fuck!”
“Ok so… are you gonna call Taeyong?”
“Fuck, I don’t wanna do this,” you whine.
“If you don’t, I will,” he says and you can hear the shit-eating grin on his face.
“Fuck, fine!”
Now you find yourself at Taeyong's front door. He’s the head of your coven, though, it's been a while since you’ve all had a meeting. He’s always been very old school so he didn’t love the idea of a blood bar. That didn’t stop him from being supportive from afar.
You softly knock on the door.
“Hi Taeyong-” you start when he opens the door.
“Jaehyun filled me in.”
“That bitch,” you mutter.
Tell me in your words though,” he says as he lets you in.
“Hm.”
“That’s all you have to say?” you ask slightly annoyed.
“Well I know you know what I'm going to say,” he says standing up to look out the window.
“I've just- I thought soulmates were something you talked about as a joke.”
“Do you think I warned you about being wary of the humans you feed off of for the fuck of it?”
“I’ve just never met anyone who had a soulmate,” you respond.
“Have we not met?”
You freeze at what he’s insinuating. “You… have a soulmate?”
“Had.”
“Oh, Taeyong. I'm sorry,” 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.
“It’s okay. It was a long time ago, shortly after I was turned. I wanted to turn him, but he didn’t 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.”
“I’m so so soooo sorry, Taeyong,” you give him a hug, holding back tears on his behalf. “Thank you for talking to me and trusting me with this information.”
“Of 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.” You stay and catch up a little bit longer and offer to send a donor to him every once in a while, so he doesn’t have to hunt. He’s still super old school, but he tells you he’ll think about it. You slowly make your way back home, taking the long way.
Donghyuck. Haechan. That dweeby desperate little human who’s been obsessed with you since he met you. He is your soulmate. A concept that you didn’t even know was real, especially not for someone like you.
How do you break it to him? What do you even say? Before you know it, you’re walking up to the bar. You don’t know why you’re here. It’s the end of the night so he’s probably already gone. You sigh and start walking home when from behind you, you hear, “Boss?”
When you turn around, Haechan is running towards you and wraps you up in the tightest hug.
“I missed you so much.”
You laugh a little bit and reply, “I missed you, too!”
He is still hugging you as tight as can be, but he moves to nuzzle into you.
“Can I walk you home?” he mumbles into your neck.
“Okay.”
When you pull up in front of your house, you blurt out, “I have something I need to tell you.”
“You can tell me anything,” he comforts.
“What do you know about vampires?”
“I know that a human gets turned by feeding off of another vampire. You're basically invincible and incredibly strong and fast. You can’t go out in the daytime unless it’s cloudy or raining. You feed off of humans, and in the olden days, they would drain humans entirely.”
“Okay well that’s 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, it’s the best tasting blood ever. There’s 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.
“Okay…” 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.
“Are you saying that I'm your… soulmate?”
You brace for impact and close your eyes to avoid eye contact entirely when you say, “Yes, I- I think you are.”
“Oh. My. God! This is the best day of my life!” You open your eyes and see Haechan pumping his fists in the air jumping around, excited about this announcement.
“It’s not that simple, Haechan.”
“What do you mean? You’re my soulmate. Seems pretty straightforward to me,” he shrugs
“You’re a human-”
“Okay.”
“I’m a vampire.”
“Okay? I know this boss.”
“I’m immortal, and-” your mouth struggles to say the next words, “and… one day you’re going to die.”
“So turn me,” he says casually.
“You can’t just make a decision like this so offhandedly! Don’t you wanna think about it?” At that, Haechan puts his hands on your shoulders, focusing you to look at him.
“Are we or are we not soulmates?”
“Yes…” you mumble.
“Okay, there you go. Even if we weren’t, I would marry you right now. Have you not noticed I’m 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,” he says, taking your hands in his.
“I thought you were just insane in general,” you joke to deflect.
“I’m sure about this, darling. I promise.”
You lead him into your home and ask him about a million more times if he’s 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 he’s fed off of you enough to turn, you’re 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 you’re terrified that he already regrets his decision.
“What- what’s wrong?”
“Does this mean you’re going to feed on other people?” he whines.
“Haechan, I’ve already been feeding on other people-“ you laugh.
“But now you have me,” he pouts.
“Are you feeling jealous?” you tease.
“Yes, I’m so obviously jealous. I have every right to be! I don’t want your mouth on anyone else!”
“Well, here’s a little known secret- vampires can feed off of each other,” you smirk.
“Oh thank god- I love this, I love you, I’m so glad. I love you I love you,” he shoots up to give you a smooch. “I’m going to make you so full.” You almost moan at the double entendre.
“Just consider me your universe-given, FDA-certified blood bag.” he smiles before attacking you with kisses.
divider by @strangergraphics
