Weak Hero Boys x P!Reader Headcanons
Weak Hero Class boys x pregnant!reader (fluff)
Includes: Geum Seongjae,Na Baekjin, Ahn Suho, Yeon Si-eun, Kang Woo-young, Oh Beom-seok, Go Hyuntak, Park Humin (Baku)
Note: This was an anon request! AND GOD, I swear writing — let alone reading — stuff like this makes me feel all kinds of weird. And I wrote each character at a different time of day so they wouldn’t all feel the same. Hope I pulled it off.
⸻
Geum Seongjae
1. The Moment He Finds Out:
Silence. He just stares. Then his lip twitches.
The second you tell him you’re pregnant, Seongjae goes quiet for a few seconds. He looks unbothered on the outside, but you know a thousand things are racing through his head. In that moment, his whole “world” shifts.
“I knew no one else could ever give me something like this.”
He says it softly, but something breaks in his eyes — like the idea of ever letting you go has become completely impossible.
2. Possessiveness:
Obsession. Protection. Paranoia.
He’s not just protecting you anymore, but everything you’re carrying inside you. Even the tiniest bit of stress is enough reason for him to lock you in the house. If someone bumps into you by accident? Seongjae might beat them up in the middle of the street without a second thought.
“I better not see you cry again. I’m dead serious.”
Even the dark circles under your eyes feel like a personal insult to him.
3. Physical Obsession:
He’s obsessed with your belly. Every time he talks to you, his hand goes there like a reflex. At night, he lays his head against it and whispers things to the baby. He starts acting like a “family” way before the baby’s even born — but not in a normal way.
“There’s a piece of me inside you. That means you don’t get to leave. Ever.”
4. Jealousy & Going Insane:
Another guy checking you out while you’re pregnant? Your best friend trying to take you out of the house? It’s all a problem. At some point, he might even try to hide the fact that you’re pregnant altogether.
“Don’t wear that. There’s no reason to show your stomach like that. People don’t need to see. That’s mine.”
5. Random Kindness Spikes:
He’ll suddenly start talking about baby room ideas, sweet little dreams, out of nowhere. In those moments he seems normal, like a regular excited dad — but there’s always a breakdown bubbling underneath.
“If it’s a girl, you can name her. But if it’s a boy… I’ll decide.”
6. Before & After the Birth:
The closer it gets to your due date, the more controlling he becomes. He chooses the hospital, who’s allowed in the room, even the nurse that’s going to be with you.
“If anything goes wrong… someone’s paying for it. Got it?”
And after the birth? He isolates you, the baby, and himself like it’s a three-person world. He wants to build everything from zero — just you three.
“It’s only us now. Everyone else out there is dangerous. What else do I need to do to make you understand that?”
⸻
Na Baekjin
1. When He Finds Out:
Silence. He masks his emotions, but his pupils shake. After you tell him, he holds your gaze — and stays exactly the same. Cold. Serious. Neither happy nor mad. Then he lowers his head a little.
“Is it mine?”
He trusts you. He does. But he still asks — not because he doubts you, but because he wants to believe so bad it physically hurts. And maybe… because he hates himself a little too much.
2. He Doesn’t Say “I Can’t Be a Dad,” but…
Responsibility? That’s not something he’s ever believed he deserved. He tells himself, “Someone like me can’t raise a child.” But he still parks outside your place every night, just watching. Making sure nothing happens.
“Don’t be alone. I’m behind you like a shadow — just act like I’m not there.”
3. His Way of Protecting You:
Silent. Brutal. Shadowed. Baekjin never publicly claims you. But anyone who threatens you? They start disappearing one by one. He’s given a silent order across the whole Union.
“If anyone even thinks about getting close to her — they better have their grave ready.”
4. How He Sees the Pregnancy:
It’s guilt mixed with obsession. When he sees your belly, his eyes freeze for a second. Because there’s a life inside you — his life — and he’s still struggling to believe something so pure could come from someone like him.
“If I were someone cleaner… maybe we could’ve really had this together.”
Still, his hands always go to your stomach. Every time he touches you, it’s careful. Gentle. Like he thinks you might break.
5. He Cuts You Off From the World:
The closer it gets to your due date, the more he isolates you. Friends? Family? Opinions? None of it matters to him.
“I don’t care what anyone says. If something happens to you… I’ll burn the f*cking world down.”
6. “Family” Becomes Real for the First Time:
Baekjin never had warmth growing up. Never had a real home. But now? Now the idea of building a house — not a place, but a feeling — with you and the baby is something he clings to in the dark. One night, he says without thinking:
“If someone had hugged me growing up… maybe I could’ve loved as good as you do.”
7. After the Baby’s Born:
He’s a wall. Cold, distant. But always there. He won’t hold the baby and coo over it, no. But he stands by the crib at night while you sleep, silently watching the tiny hand curled around his finger.
“Would it be okay… if I picked the name?”
⸻
Ahn Suho
1. When He Finds Out:
Shocked. Eyes wide. “Wait, what? Are you serious?! We’re PREGNANT?!”
At first, it doesn’t compute. He asks you to repeat it like three times. Then his hands start shaking. He might even tear up.
“I’m… I’m gonna be a dad? For real?!”
His first reaction is pure joy — mixed with straight-up panic. He wants to pick you up and spin you around, but the moment you say “Stop, I’m nauseous!” he freezes and immediately puts you down.
2. Ridiculously Affectionate:
He flips into “mom mode” in two seconds. Tries cooking for you, watches YouTube videos on pregnancy massages, double-checks every corner of the house like “is this safe for her? for the baby?”
“No more junk food. Less salt. Sit down, feet up. This baby’s not stressing you out!”
3. Fighting His Own Demons:
Deep down, he thinks, “I didn’t have a good childhood… what if I mess this up too?”
But he never says it out loud. He just holds you at night and whispers to your belly:
“If I raise this baby with someone like you… maybe I won’t mess it up.”
4. Emotional Rollercoaster:
Your hormones? Yeah, his are worse. You cry, he cries. You snap, he sulks — but then brings you a fruit bowl with a pouty face. One time, you probably ended up ugly crying together while eating stuffed grape leaves.
5. Silent Jealousy:
If he sees you talking to another guy? His whole vibe shifts. He won’t say anything, but the pout, the slumped shoulders, the quiet little stares — they’re all there.
“Go out if you want, just… wear something warm. And text me. At every step. I just— I worry, okay?”
6. The Birth Itself:
Sweating. Shaking. Crying. Loving. If they let him in the room, he’s right there, holding your hand like it’s the only thing keeping him alive. If they don’t — he’s on his knees outside the door, praying like his whole soul’s in it.
“You’re both okay, right? Please… that’s all I need.”
⸻
Yeon Si-eun
1. When He Finds Out:
His brain literally freezes for a second before it starts processing. When you say “I’m pregnant,” Si-eun just stares at you in silence. No yelling. No running. No hugs. His hands tremble a little.
“How long has it been? Are you okay? How many weeks?”
He hides his emotions — but every question screams, “I’m scared to death of losing you.”
2. Switches to Practical, Strategic Dad Mode:
Hospital? Booked. Doctor? Researched. Nutrition? Charted. Stress? Monitored.
“You’re not eating anything on this list. I’m serious.”
But also:
“But… if you’re craving something… I kinda snuck in a little chocolate. Please don’t be mad.”
3. He Suppresses Emotion, But Never Leaves You Alone:
He didn’t grow up with love, so he genuinely has no clue how to treat you or the baby. But one thing’s for sure: he’s not going anywhere.
He’s not the jealous type — but he is controlling. He won’t say “who did you hang out with?” but he’ll definitely check your phone later and mentally profile anyone who could hurt you.
“Don’t see anyone who might stress you out. Please. Not for me — for our child.”
⸻
Kang Woo-young
1. When He Finds Out:
Silence. Eyes on the floor. Then suddenly, his breath catches. He doesn’t say a word at first — just stares blankly. But if you look closely, you’ll see he literally forgot how to breathe.
“…I’m gonna be a dad?”
His voice shakes, but he tries to play it off. His jaw clenches.
“Okay. I’ll… I’ll figure this out. Just give me a little time.”
And then he leaves — not because he doesn’t care, but because he never planned to build a family. It was always just you and him. But later that night, he comes back. Finds you asleep, puffy-eyed from crying. Slips into bed behind you, holds you tight, buries his face in your neck.
“Don’t ever think you’re alone. No matter what… I’m here.”
2. Shows Love Through Actions, Not Words:
He can’t cook soup, but he’ll leave water by your bed every night. He can’t write you poetry, but he’ll tie your shoelaces without a word. And the first time your belly starts to show, his eyes well up.
“God, this is so weird. But so beautiful.”
3. Protection Style:
Quiet But Deadly.
Someone bumped into you? Woo-young doesn’t say a word. But a few days later, you’ll hear that guy got beat half to death in some underground ring.
He promises no more fights — “for the baby.” But of course he still does it.
4. Obsessed With Your Belly — But Too Shy To Show It:
His eyes keep drifting to your stomach when he talks to you. But he’s too shy to touch it. One night, you place his hand there — and he literally forgets how to breathe. His fingers tremble.
“Did you really love me this much?”
That night, for the first time, he rests his head on your belly and whispers for hours:
“Don’t be like your mom. She’s too soft. This world’s harsh.”
5. Emotional Breakdowns: Silent Crying:
As your pregnancy progresses, every time he feels like he’s not doing enough, tears fall. But he hides in the bathroom so you won’t see.
“I have to be strong. For both of you.”
6. Day of the Birth:
Looks like he just stepped out of a street fight. Doesn’t yell at the doctors, but the fire in his eyes says enough.
7. Fatherhood:
He can’t stop the baby from crying. Can’t change a diaper right. But every single night, he stays up beside the crib. He lets you cry in his lap without saying a word.
“You don’t have to be scared. I’m right here. Always.”
⸻
Oh Beom-seok
1. When He Finds Out:
Stares blankly. He thinks you’re joking at first.
“Wait… are you serious? From me? Like, really…?”
Then his voice breaks. His eyes fill up, but he tries not to cry. Honestly? His world crashes down. Because his dad… well, you know. And it’s not about what’ll happen to him — it’s the fear of something happening to you or the baby.
“I’m gonna… be a dad?”
His voice cracks saying it. Because his father made sure the word “dad” left a scar on his soul.
2. Wants To Run — But Can’t:
In his head: “I’m someone who doesn’t know love, who grew up on violence, who shuts everyone out. What do I have to do with someone like you?”
But leaving you would be death to him. So instead, he goes quiet. Closes in on himself.
“I don’t want to hurt you… so I might keep my distance for a while. But I won’t leave. I promise.”
3. Blames Himself Deeply:
Lays in bed staring at the ceiling every night.
“What if I turn out like him? What if I am him?”
4. Hyper Emotional, Super Fragile:
Every time you’re tired, he blames himself. Don’t feel like eating? He tears up, thinking he messed something up.
“I can’t stand seeing you upset. I’ve already been so awful… don’t turn into me.”
To him, your pregnant body feels sacred. Sometimes he can’t even touch you.
“You’re carrying something inside you now. I don’t even wanna accidentally hurt you. I’m scared.”
6. The Birth:
He breaks. Shaking. Sitting in some hospital hallway, hands covering his face, sobbing like the world’s ending.
“Please… God, please don’t take her from me.”
7. Fatherhood:
Slow, but deeply tender. Doesn’t know how to hold a baby. But watches over yours every second of the night. Talks to the baby while you sleep.
And one day, watching the two of you together — he smiles. For the first time. A real, slow, genuine smile.
“I thought I had no place in this world. But… you gave me a room in it.”
⸻
Go Hyun-tak
1. When He Finds Out:
This man goes feral. In a good way. Just stands there with this shocked, joy-filled smile, completely speechless. Then suddenly:
“Wait WHAT? OUR baby? PROJECT LEBRON JAMES BEGINS!”
2. Protective Soft Side Comes Out:
He shows up for every single doctor’s appointment. Tries to learn everything he can. At home, he leaves little surprises — hot soup, a fruit plate, a stack of pillows. But he does it shyly, almost embarrassed.
“You feeling okay matters more to me than anything.”
3. His Excitement Is Contagious:
Shopping for the baby? He treats it like a mission. Toys, clothes, the perfect paint color for the nursery — he’s got opinions.
“Our baby’s gonna sleep in the nicest room on the block, alright?”
4. Tiny Panic Attacks — But He Bounces Back:
He sometimes spirals like “what if we’re not ready?” But then breathes in, looks at you, and says:
“We’re in this together. No matter what. We’ve got this.”
5. Jealousy Is Soft & Silly:
Sees you chatting with another guy? Pouts a little. Then immediately smiles again.
“Sorry… I just. You’re kinda my whole world.”
6. Birth Time = Full Support Mode:
He’s right beside you, holding your hand, hyping you up with every push.
“You’re strong. I’m right here.”
When the baby cries for the first time, he’s standing right there, trying to feed it with trembling hands.
“Look at our tiny Lebron James.”
7. Dives Into Dad Life Fast:
He’s hungry to learn. Wakes up for every night feeding, writes down every little milestone.
“We’re building something new. You, me, and our baby. It’s gonna be amazing.”
⸻
Park Humin (Baku)
1. When He Finds Out:
He screams. For real. Like he just scored the game-winning goal in the final second. Pure, goofy, chaotic happiness.
2. A Little Insecure:
His relationship with his dad? Yeah. Complicated as hell. He’s terrified of telling him, and even more scared he might turn into him. Just like Beom-seok, he fears becoming a bad father.
3. Quiet, Emotional Protection:
With you? He’s tough. Out in public? He smiles and holds your hand like you’re fragile glass.
“No one’s touching you. Baku’s right here.”
But when he’s alone, his chest aches with the memories of his dad.
4. Tiny Surprises & Care:
You’re tired? He sets up cute little things around the house. Brings your favorite dessert. Buys fresh chicken from your favorite spot.
“I know this isn’t easy… but we’ve got this. Together.”
5. Jealousy & Trust:
Sees you talking to other guys? His eyes tear up — but he never says a word. Keeps it buried.
“Just… understand me, okay? I just wanna protect you.”
6. During Birth:
Nervous as hell but stands strong. His palms sweat like crazy, but he holds your hand the whole time.
“You’re gonna be okay. You and the baby — you’re both okay.”
7. Fatherhood:
Soft. Steady. Scared. But loving. He’s clumsy at first, scared to touch the baby. But he never leaves your side. Stands by the crib every night.
“I’m not just here for you anymore. I’m here for them too.”











