Archive of Our Own

Chapter Text

The lock clicked open somewhere in the evening.

Seungmin heard it first—that specific turn of the key, the heavy shuffle of luggage against the hardwood. His fingers tightened around his phone, but Minho's hand was already on his thigh, squeezing once. A warning. Or a promise.

"Dad's home," Minho murmured, voice low enough that only Seungmin could catch it. His breath ghosted against the shell of Seungmin's ear. "Be good."

The door swung open.

Changbin stood in the entryway, rolling a battered suitcase behind him. His hair was slightly dishevelled from the flight, dress shirt untucked on one side, but his face split into a genuine grin when he saw them both on the couch.

"Well, look at that. Both my boys, same room, no blood drawn." He kicked off his shoes, leaving them haphazardly by the door. "Miracles do happen."

Minho's arm was draped along the back of the couch behind Seungmin. Casual. Brotherly. The picture of domestic harmony. "Welcome back, Appa. How was the flight?"

"Long. Cramped. The guy next to me snored like a chainsaw." Changbin dragged his suitcase toward the hallway, already loosening his tie. "Your mother's staying back for another week. Some merger details to finalize."

"So it's just us three?" Seungmin asked. His voice came out steady. Normal. He'd gotten better at that—at sounding like nothing was wrong, like his older brother's fingers weren't tracing slow circles against the inside of his knee.

"Just us three," Changbin said, as if it were a blessing. He paused in the hallway, looking back at them with something soft in his expression. "You know, it's nice. Just the men of the house. No nagging about the dishes or the thermostat or—"

"Or the corporate attendants?" Minho supplied, a smirk in his voice.

Changbin's ears went pink. "That was a misunderstanding. And your mother and I have moved past it."

"Have you?"

"We're working on it." Changbin cleared his throat. "Anyway—I'm starving. Have you boys eaten? Is there even anything leftover in the fridge?"

"Seungmin and I already ate," Minho said. His thumb pressed into the soft skin above Seungmin's kneecap. "But I can heat something up for you."

Changbin blinked. "You? Offering to heat something up? For someone else?"

"I'm capable of basic human decency, Appa."

"Since when?" But Changbin was smiling, that pleased dad smile that came out when his sons did anything remotely considerate. "Look at you. Taking care of your younger brother, offering to help your old man. Did the pod people replace my firstborn while I was gone?"

"Very funny."

"No, seriously." Changbin leaned against the hallway wall, arms crossed, studying them with an almost sentimental expression. "I remember when you two couldn't be in the same room without arguing. Minho, you used to steal his toys just to watch him cry."

"I was eight."

"And Seungmin, you put gum in his hair three separate times."

"He deserved it," Seungmin said. The corner of his mouth twitched.

Under the couch cushion, Minho's fingers had slipped higher—tracing the hem of his shorts, dipping just beneath the garter. Seungmin's stomach tightened, but his expression remained placid. Easy.

"We've matured."

"Clearly." Changbin pushed off the wall, heading for the kitchen. "I'm going to grab some takeout. Minho, don't forget your offer. And Seungmin—has he actually been decent? Or is this some scheme to get you to do his laundry?"

Seungmin felt Minho's fingers hook into the waistband of his shorts. A gentle tug. Possessive.

"He's been... attentive," Seungmin said carefully.

"Attentive," Changbin repeated the word like it was foreign. "Huh. Well. Good. That's good. Your mother will be thrilled when I tell her."

"Don't," Minho called after him. "She'll think something's wrong."

"She'll think something's right for once!" Changbin's voice echoed from the kitchen, accompanied by the clatter of containers being pulled from the fridge. "My boys getting along? That's a miracle worth reporting."

The microwave hummed to life.

Minho leaned closer. His lips brushed against Seungmin's temple—too brief, too casual to be suspicious if anyone walked in, but Seungmin felt the heat of it down to his toes.

"Attentive," Minho repeated, voice barely a whisper. His fingers crept further beneath the fabric, knuckles dragging against Seungmin's inner thigh. "Is that what I am?"

Seungmin didn't answer. His breath caught when Minho's fingertips found the edge of his underwear—cotton, plain, nothing special—and traced the seam with agonizing slowness.

"You're going to get us caught," Seungmin murmured through barely moving lips.

"Am I?" Minho's other hand came up, cupping the back of Seungmin's neck in a gesture that looked protective from a distance. Brotherly affection. "You're the one who can't keep quiet."

"I can be quiet."

"Prove it."

The microwave beeped.

"Food's ready!" Changbin called out. "Minho, come grab this before I drop it. Your mother's old bowl is somehow the only clean one, and it's too hot to handle."

Minho's fingers withdrew. Seungmin exhaled, half-relief and half-something else he didn't want to name. Minho stood, stretching casually, and walked toward the kitchen like he hadn't just been two knuckles deep in his brother's shorts.

"Coming, Appa."

Coming.

The word hung in the air, and Seungmin hated that his mind went there—hated that Minho probably knew it did.

Dinner was Changbin's takeout reheated in mismatched containers, eaten at the coffee table because the dining table had become a dumping ground for mail and packages no one had opened. Changbin sat in the armchair, plate balanced on his lap, while Minho and Seungmin shared the couch.

Minho had positioned himself close. Not suspiciously so—just near enough that their shoulders touched, that their knees bumped when one of them shifted. Changbin didn't notice. Why would he? Brothers sat close. Brothers shared space.

Brothers didn't do what they did.

"So," Changbin said between bites of cold sesame noodles, "what have you two been up to while I was gone? Besides apparently learning to tolerate each other's existence?"

"Nothing special," Minho said. His hand rested on Seungmin's knee again—under the table, out of Changbin's line of sight. "Just... hanging out. Watching movies. Cooking sometimes."

"Cooking?" Changbin nearly choked. "You? Cooking?"

"Seungmin cooked. I helped."

"You burned water."

"That was one time."

Seungmin snorted. "You set off the smoke alarm making toast."

"The toaster was defective."

"The toaster was fine. You put a fork in it."

"To retrieve the bread."

"You don't retrieve bread from a toaster with a fork, hyung."

The bickering was easy. Familiar. Almost comfortable. Changbin watched them with a bemused expression, chopsticks paused halfway to his mouth.

"See, this? This is what I missed." He gestured between them with the chopsticks. "The banter. The sibling energy. Your mother and I used to worry, you know. That you'd never be close."

"We're close," Minho said. His thumb stroked the inside of Seungmin's knee, a pinch. Slow. Deliberate. "Aren't we, Seungmin-ah?"

Seungmin met his eyes. There was something dark there—something hungry that the casual tone didn't quite mask.

"Very close," Seungmin said.

"Good. That's good." Changbin set his plate aside, leaning back in the armchair with a satisfied sigh. "You know, when I was your age, my brother and I—we did everything together. Shared a room until I was twenty. People thought it was weird, but... there's something about that bond, you know? Someone who knows you better than anyone."

Minho's grip tightened on Seungmin's knee.

"Someone who'll always be there," Changbin continued, eyes distant with memory. "No matter what. That's what brothers are for."

"You're getting sentimental, Appa," Minho said lightly. "Must be the jet lag."

"Maybe." Changbin yawned, jaw cracking. "Actually—yeah. The jet lag's hitting hard. I should shower and crash." He stood, stretching his arms above his head. "You boys don't stay up too late. And Minho—"

"Yeah?"

"Whatever you're doing different? Keep doing it. It's nice seeing you take care of your brother."

Minho smiled. It looked genuine. "I will."

Changbin shuffled toward the bathroom, and a moment later, the sound of running water echoed through the apartment.

The second the bathroom door clicked shut, Minho moved.

His hand shot up to Seungmin's jaw, gripping hard, yanking him close.

Their mouths collided—teeth and tongue and something desperate. Minho kissed like he was trying to consume him, licking into Seungmin's mouth with a hunger that made his intentions unmistakable.

"Hyung—" Seungmin gasped against his lips.

"You were so good," Minho breathed. His other hand was already shoving up the hem of Seungmin's shirt, palm hot against his stomach. "So fucking good, sitting there, letting me touch you while Appa talked about brotherly bonds."

"Someone's twisted."

"Says the one who got hard from his brother's fingers in front of their father."

Seungmin's face burned.

He was half-hard—they both knew it—and the denial died on his tongue when Minho's hand slipped below his waistband again. This time there was no pretense. No slow approach. Minho's fingers wrapped around Seungmin's cock through his underwear, squeezing just this side of too rough.

"Fuck—"

"Quiet." Minho's voice was sharp. His eyes flicked toward the bathroom door. The shower was still running. "He can't hear you, but I want you to pretend he can. I want you to stay quiet like a good little brother."

Seungmin's hips jerked into Minho's grip. "You're insane."

"And you're leaking." Minho rubbed his thumb over the tip of Seungmin's cock through the cotton, smearing the damp spot that had formed. "Did it turn you on? Having Appa right there, talking about how close we are, while you sat with my fingers between your legs?"

Seungmin didn't answer. Couldn't. Minho's hand had slipped beneath the waistband now, skin on skin, and his grip was perfect—tight and hot and exactly the way Seungmin had grown addicted to.

"He has no idea," Minho continued, voice low and rough. He stroked Seungmin slowly, almost lazily, like he had all the time in the world. "No idea that his precious firstborn has his cock inside his youngest. No idea that you spread your legs for me every night, that you take it so well, that you come on my dick like you were made for it."

"Hyung—"

"Say it." Minho's grip tightened. "Say you're mine."

"I'm—"

The shower cut off.

Both of them froze.

Minho's hand stayed wrapped around Seungmin's cock, but the movement stopped. They listened to the sound of the bathroom door opening, the shuffle of Changbin's feet down the hallway.

"Boys?" Changbin's voice called out, muffled through the walls. "I'm heading to bed. Don't stay up too late!"

"We won't, Dad," Minho called back. His hand started moving again—slow, torturous strokes that made Seungmin bite down on his own knuckle to keep quiet.

"Goodnight!"

"Goodnight!"

A door closed. Lock clicked.

Minho exhaled. Then he laughed—low and dark, like he'd just gotten away with something thrilling.

"He almost caught us," Minho said. His strokes quickened, grip tightening. "Would you have stopped? If he walked out here?"

Seungmin's head fell back against the couch. His hips were rocking into Minho's fist now, chasing the friction, unable to stop himself. "N-No—"

"No?" Minho's voice was amused. Dangerous. "You'd let Dad see you falling apart on hyung's hand?"

"I—hyung, please—"

"Please what?" Minho's thumb swept over the head of Seungmin's cock again, spreading the slick precum down the shaft. "Tell me what you want."

"More. I need—"

Minho released him.

Seungmin's eyes snapped open, a whine escaping his throat before he could stop it. "What—"

"Bedroom." Minho stood, adjusting himself in his own pants—Seungmin could see the outline of his erection, thick and obvious. "Now. Before Appa falls asleep deep enough that we can be loud."

Seungmin was on his feet before his brain caught up. His legs were shaky, cock straining against his underwear, but he followed Minho down the hallway anyway. Past Changbin's closed door. Past the bathroom. Into the room they'd started sharing when no one was watching.

Minho closed the door behind them. Locked it.

"Strip," he ordered.

Seungmin's hands moved on autopilot—shirt over his head, shorts down, underwear kicked aside. He stood there, bare, cock flushed and curved against his stomach, while Minho watched with dark, hungry eyes.

"On the bed. Hands and knees."

The sheets were cool against Seungmin's palms as he positioned himself. He heard Minho moving behind him—the rustle of clothing being removed, the wet sound of lube being slicked over fingers. Then Minho's hands were on his hips, thumbs spreading him open, and a warm breath ghosted over his exposed hole.

"Hyung—"

"Shh." Minho's tongue pressed flat against his entrance.

Seungmin's arms nearly gave out. His elbows buckled, face dropping into the pillow as Minho licked into him—slow, deliberate strokes that made his whole body shake. Minho's tongue was hot and wet, circling the rim before pushing inside, and Seungmin had to bite down on the fabric to muffle his moans.

"Appa's right down the hall," Minho murmured against his skin. The vibration made Seungmin clench. "You're going to have to be quiet. Think you can do that?"

"I—I'll try—"

"Try harder." Minho's tongue pushed deeper, then withdrew. A finger replaced it—just one, sliding in to the knuckle, crooking to find that spot that made Seungmin see stars. "Because if he hears you? If he comes in here and sees how good his older brother takes care of his younger brother?"

Minho added a second finger. Seungmin sobbed into the pillow.

"I'd have to explain that you're mine," Minho continued, voice calm and conversational while his fingers worked Seungmin open. "That I've claimed you. That this—" he curled his fingers, pressing hard against Seungmin's prostate, "—belongs to me."

"Yours," Seungmin gasped. "I'm yours, hyung, please—"

"Please what?"

"Fuck me. I need you to fuck me."

Minho's fingers withdrew. The sound of the lube bottle again, then the blunt pressure of his cock against Seungmin's entrance. He pushed in slowly—too slowly, agonizingly slowly, inch by inch until Seungmin could feel every ridge and vein.

"Still so tight," Minho groaned. His hips pressed flush against Seungmin's ass, buried to the hilt. "Like Appa and Eomma made you just to take my cock."

"Move. Please, move—"

Minho pulled back and snapped his hips forward.

The pace he set was brutal. Each thrust drove Seungmin further into the mattress, the bed creaking beneath them despite their attempts to be quiet. Minho's hands gripped his hips hard enough to bruise, yanking him back onto each stroke, and the sound of skin slapping against skin filled the room.

"Quiet," Minho reminded him, but his own voice was ragged. "You have to be quiet, Seungmin-ah."

Seungmin was trying. He had the pillow clamped between his teeth, fingers white-knuckled on the sheets, but every thrust punched a sound out of him that he couldn't contain. Whimpers and gasps and broken syllables of Minho's name.

Minho leaned over him, chest pressing against Seungmin's back, lips brushing his ear. "Imagine if Appa walked in right now. Imagine the look on his face."

"Stop—"

"Seeing his boys like this. His eldest son balls-deep in his youngest. Knowing that everything he said about brotherly bonds—" a particularly hard thrust, "—has been twisted into this."

Seungmin came without warning. His orgasm crashed through him, cock pulsing untouched, spilling onto the sheets beneath him. He sobbed into the pillow, body clenching around Minho's cock, and Minho fucked him through it with relentless strokes.

"That's it," Minho growled. "Come for me. Come on hyung's cock…"

"Hyung—" Seungmin gasped.

"One more. Give me one more."

"I can't—" He wails.

"You can." Minho's hand reached around, wrapping around Seungmin's spent cock, stroking the oversensitive flesh until Seungmin was shaking and crying and half-hard again. "You're going to come again, and then I'm going to fill you up, and you're going to sleep with my cum inside you. And tomorrow, when Appa makes breakfast and talks about family bonding, you're going to sit at that table with my load leaking out of you. Like how you planned it with Jisung."

Seungmin's second orgasm hit him like a freight train at the mention of Minho's ex. His vision went white, body arching, a silent scream tearing from his throat. Behind him, Minho swore—low and guttural—and slammed in one final time, cock pulsing as he came deep inside.

They collapsed together. Minho's weight pressed Seungmin into the mattress, both of them breathing hard, hearts pounding in tandem.

For a long moment, neither of them moved.

Then Minho pressed a kiss to the back of Seungmin's neck. Gentle. Almost tender. It almost felt real for once. But Seungmin knew this was a moment when feelings felt barren. Used. Nothing here made sense.

"Good boy," he murmured. "You were so quiet."

Seungmin laughed—exhausted, fucked-out, a little hysterical. "I wasn't quiet at all."

"Quiet enough." Minho shifted, pulling out slowly. Seungmin winced at the loss, at the slick feeling of cum dripping down his thighs. "He didn't hear."

"Small mercies."

Minho rolled off him, settling onto his side of the bed. His hand found Seungmin's in the dark, fingers interlacing. It was such a small, intimate gesture—almost sweet, if Seungmin didn't know better.

"Sleep," Minho said. "Appa will want family breakfast."

Seungmin closed his eyes. His body ached in the best way, thoroughly used and claimed, and somewhere in the haze of exhaustion, he thought about tomorrow. About sitting at the table with Minho's cum inside him. About Changbin's oblivious smile and dad jokes and comments about how nice it was to see his boys getting along.

About how none of them were ever going back to normal.

"Hyung?"

"Hmm?"

"We're going to hell."

Minho's thumb stroked over Seungmin's knuckles. "Probably."

Silence.

"At least we'll go together."

Seungmin didn't answer. But he didn't let go of Minho's hand, either.

Morning came the way it always did in their household: gradually, unhurried, with the smell of coffee drifting through the apartment and the sound of Changbin's bare feet padding across the kitchen tile.

Seungmin woke first.

Or rather, he'd barely slept.

The fullness inside him had kept him shifting all night, Minho's cum leaking slowly into his underwear every time he rolled over, the fabric growing damp and cool against his skin. By the time sunlight crept through his curtains, his briefs were a mess—sticky, clinging, the scent of sex faint but unmistakable.

His hole was tender. Sore. Puffy from the repeated use, the ring of muscle swollen and sensitive.

He lay in bed for a long moment, staring at the ceiling. His thighs ached. His lower back ached. There was a dull, satisfied throb deep in his gut that he couldn't ignore—the ghost of Minho's cock, still imprinted inside him.

He got up, stripped off his ruined briefs, and stood naked in front of his mirror for a moment. His body was lean, toned from the gym habits Changbin had instilled in both his sons. He turned slightly, examining the faint bruises on his hips where Minho's fingers had gripped. His cock hung soft between his legs, spent. He reached back, fingers brushing his hole—puffy, slick, leaking a thin trickle of white when he pressed.

He pulled his hand away. Stared at his fingertips. Sucked them clean out of habit, the taste of Minho salty and faintly bitter on his tongue. Seungmin hummed at the memory.

Then he opened his drawer and reached for his own pyjama pants.

Paused.

Minho's sweatpants were folded on his desk chair. Minho had left them there two days ago—a pair of loose, grey joggers that smelled like his detergent and his skin. Seungmin pulled them on instead, commando, no underwear. The fabric was soft against his bulge, and the waistband sat low on his hips. He could feel the air against his lower back where the fabric gaped.

If he bent over, there'd be nothing underneath.

He padded out to the kitchen.

Their dad was at the stove.

Changbin stood with his back to the living room, hunched slightly over a pan of eggs, spatula in hand.

He'd slept in his shorts—plain, navy blue, mid-thigh, the kind of generic dad shorts that came in a three-pack from the department store.

No shirt.

An apron was looped around his neck and tied at his waist, the strings pulling the fabric taut across his broad back. His shoulders were thick, darker than the rest of him from years of outdoor work, and the muscles shifted visibly beneath his skin as he moved. His hair was still messy from sleep, sticking up at the crown.

Seungmin stopped in the doorway.

He'd seen his father shirtless a thousand times. It should've been normal. At the pool. On camping trips. Mowing the lawn on Sunday mornings. It had never registered as anything other than normal—Dad being Dad, comfortable in his own home.

But now.

Now, Seungmin's eyes traced the line of Changbin's spine, the dimples above his waistband, the way the apron strings dug into the soft flesh at his sides. He watched the shift of Changbin's shoulder blades as he stirred the eggs, the casual flex of his forearm, the faint baby hairs dusting his arms. His gaze dropped to Changbin's legs—thick, solid, the kind of legs that came from years of squatting and deadlifting at the gym he'd dragged both his sons to since they were fifteen.

Seungmin's hole clenched. A fresh trickle of cum leaked from him, soaking into the grey fabric between his thighs.

Fuck.

He crossed to the dining table, which was cluttered with mail and Minho's laptop, and sat down on the floor beside the coffee table instead—their usual breakfast spot when no guests were around. He tucked his legs beneath it, the sweatpants riding up, and tried to look normal.

"Morning, Appa."

Changbin glanced over his shoulder. "Morning. Eggs? Rice?" His dad's groggy morning voice had an even more effective shiver run down his spine. Seungmin tried to ignore the swell chub of his dick flaring.

"Both. Thanks." He responds.

"Minho's still asleep?"

"Probably." Seungmin didn't bother to look for his hyung. Minho had a tendency to slip out between their sex escapades. Or, rather. It was still him denying Seungmin of what they truly wanted out of one another.

Changbin grunted and went back to cooking. Seungmin watched him. The way his dad's hands moved—confident, easy, the spatula flipping eggs with practiced efficiency. Those hands. Seungmin thought about them on his thighs. On his hips. Pressing him down into a yoga mat. He swallowed hard and looked away.

His dad worked hard. So the least Seungmin could do, as his loving son, is show appreciation. He licks his lips at the mere thought. Yeah. This is just me appreciating.

Minho emerged ten minutes later, hair dishevelled, wearing a the tank top that started it all and boxers. He dropped onto the floor beside Seungmin with a yawn, close enough that their knees touched. He glanced at Seungmin—sweatpants, no shirt, Minho's sweatpants specifically—and his mouth curved into a slow, knowing smirk.

"Morning," Minho said, reaching past Seungmin for the remote. His arm brushed Seungmin's shoulder. "Appa, smells good."

"Eat it while it's hot." Changbin set two plates on the coffee table, then lowered himself to the floor across from them with his own plate. He sat cross-legged, apron pooling in his lap, and began eating.

The three of them ate in comfortable silence for a while. TV murmuring, chopsticks clicking. Changbin asked Minho about classes. Minho gave short, vague answers. It's not like they could settle back into conversation easily.

So Changbin asked Seungmin if he'd been to the gym. As someone's dad who's a conoisseur back then to be a gym bro, Seungmin couldn't comply. They had always been dragged by their appa to join the gym. Minho took it more seriously, out of defiance. He wanted to prove he could do something without always being guided—some kind of analog Seungmin forgot.

And in Seungmin's case. Well, he just liked to ogle the muscular men.

His hyung being one of his prospects.

"Yesterday," Seungmin said. "Legs."

Yeah he did. His legs were being used. Seungmin gulped down on the rice before he let the thoughts out.

"Good. Keep it up."

That's what hyung said as well—

He tries to act normal. This was supposed to be domestic. The kind of breakfast a family shares without thinking about it.

Except Seungmin was making it all but. He's there, sitting in a pool of his brother's cum, and every time he shifts, he feels it—still warm, slick, shifting inside him. And every time he looked up, he caught another glimpse of his appa's bare chest, the apron, the thick arms, the dips on his hips under that apron, and his stomach flipped.

Is that why I can't resist my hyung? Because he got it from him?

Minho caught him looking.

Of course he did. Minho's eyes flicked from Seungmin's face to Changbin's chest and back again, and his smirk deepened. He leaned close, under the guise of reaching for the soy sauce, and murmured against Seungmin's ear:.

"Slow it down. We have time, my aegi."

Seungmin's ears went red.

After breakfast, Changbin cleared the dishes and disappeared into the kitchen. Seungmin stayed on the living room floor, stretching his legs out in front of him. His thighs ached. His hips ached. Everything between his waist and his knees felt like it had been through a machine.

Seungmin knew why. But he didn't wanna complain.

Minho followed him, sitting on the couch behind Seungmin, legs on either side of his brother's shoulders. He leaned down, lips near Seungmin's ear.

"You're sore?" Minho lilted his voice.

"Mhm." Seungmin couldn't handle popping a chub right now. Not when his brother's voice felt so seductive in the morning as well. That damned deep, groggy effect. Why did he have to get it from appa?

"Good." Minho's hand found the back of Seungmin's neck, squeezing gently. "You should ask Appa to help you stretch."

Seungmin turned his head, eyes wide. "What?"

"Your legs. Your back. You said you're sore from… the gym." Minho's thumb traced the curve of Seungmin's neck, knowing. Because it was him that really made him sore. His hole even clenched at the sudden remembrance and feeling. "Ask him to help you stretch. You know how he gets—dad mode, helpful, hands-on. He'll do it."

"Minho—"

"He'll put his hands on you. He'll push your legs back. He'll—" Minho paused, his breath warm against Seungmin's skin. "He'll stretch you good. Make you feel it. Probably make you lie on your stomach. And then," He stills, his fingers dipping below Seungmin's navel. "He'll see it, Seungmin. And then he'll feel what I left inside you. And he won't say anything, because what's he going to say? Why is my son full of cum? He'll have to pretend he doesn't notice."

Seungmin's breath hitched. His cock stirred beneath the sweatpants, a faint tent forming in the loose fabric.

"That's disgusting," Seungmin whispered. His voice had no conviction.

"That's the point." Minho pressed a kiss to the back of his head.

"You really wanna bring Appa into this?" Seungmin's breath hitched.

"It's not me who wants it. You want it too." Minho smirks. "You can't get enough of my cock. What makes you think you won't stop from taking dad's cock too?" He grabs Seungmin's tenting bulge. He hisses from the sudden aggression, already imagining riding his hyung and then taking a turn with his dad's. Like he was just a cocksleeve that was born to take them.

"Go ask."

"Appa?"

Changbin was rinsing the last pan, sleeves of the apron rolled up, forearms slick with water. He looked up. "Hm?"

"Can you help me stretch? I'm really… sore from yesterday." Seungmin stood in the kitchen doorway, one hand rubbing the back of his neck, the picture of an embarrassed young man asking his dad for help. Innocent. Easygoing. No ill intentions. "My legs and my back are killing me."

Changbin dried his hands on the apron and smiled. "Sure. Get the mat."

Seungmin retrieved the yoga mat from the hall closet and unrolled it in the living room. He stood beside it, fidgeting. Minho had relocated to the armchair, phone in hand, the picture of casual disinterest. But his eyes were sharp, tracking every movement.

"Okay," Seungmin said slowly, "Umm."

Changbin looked at him. "What is it? You feel too tense?"

Seungmin shakes his head. "Is it... can I take these off? The pants? They're restricting." He asks like he's looking for permission. Not just from his dad, but from Minho. From his hyung, who was giving him a raised eyebrow. What're you trying to do?

"I mean. Sure. We're all guys here. And I practically made you. Nothing I've seen!" Changbin goads, giving a haughty laugh that should've alleviated the nerves, making Seungmin's skin static and running. He gulps. Glances towards his hyung once more. He tugged at the waistband of Minho's grey sweatpants, and Changbin glanced at them—really looked at them for the first time.

Because he had also noticed it.

Those weren't Seungmin's. Those were Minho's. He recognized the faded logo on the left thigh.

But he didn't say anything. He didn't want to assume. Maybe Seungmin borrowed them. Maybe they'd done laundry together and mixed things up. Brothers did that. Yeah. They were closer than ever.

He waits for a moment.

And Seungmin pushed the sweatpants down and stepped out of them.

The first thing that registers both Minho and Changbin was…

No underwear.

Minho had to hold a growl stuck in his throat, trying to seem preoccupied with his phone.

Changbin's gaze swept over his son's body—lean, toned, the product of genetics and gym sessions—involuntarily, the way anyone's eyes move over a suddenly bare form. Seungmin's penis hung soft between his legs, average, neat. His thighs were smooth, slightly flushed. And between them—

Changbin's brain short-circuited for exactly one second.

And Minho watched it. Noticed it all.

Seungmin's hole was visible when he turned to set the sweatpants aside.

Puffy. Red. Slick. And there was something white there—thin, glossy, trailing down the inside of his thigh. Not a lot. Not obvious unless you were looking. But Changbin was looking, because he was a father who noticed things, and he'd just been presented with his naked son's body at eye level.

He looked away.

But was it out of respect?

"Alright," Changbin said, businesslike. Trying to keep a stoic expression. "Lie down. Let's get those legs sorted." He wavers his words a bit at the end.

He doesn't have an idea where to look, really. And he looks towards Minho, who seems like he's unfazed by seeing Seungmin naked. Like… he's seen it too often. But that's just Changbin projecting. Right?

Seungmin lay on his back on the mat, and Changbin knelt beside him, positioning himself the way he always did when he helped his sons stretch—knees planted, one hand on Seungmin's ankle, the other ready to guide. He lifted Seungmin's right leg and pressed it back toward his chest, leaning his weight into it.

Seungmin hissed. His hamstring was tight, the muscle resisting, and Changbin eased off slightly before pressing again.

"Breathe," Changbin said. "Don't fight it."

Seungmin breathed. His leg went back, his thigh pressing toward his chest, and his body opened up. His hole was exposed again—between his spread legs, directly in Changbin's line of sight if he glanced down. The puffy ring clenched as Seungmin tensed, and a thin bead of white slipped out, trailing toward the mat.

Changbin didn't look. Didn't want to. He kept his eyes on Seungmin's knee, his face, the wall behind him. Anywhere but there. It wasn't his business to ask. Who just has a conversation this early in the morning about his son's sex escapades?

And also… he bottomed?

Changbin tries not to think too much. He switched legs. Left leg up, pressing back. Seungmin groaned—actually groaned, low and soft, and Changbin's hand tightened on his calf.

"Too far?" He tries to concentrate, licking his dry lips. Minho hummed at the gesture.

"No," Seungmin breathed. "It's good. Just—sore."

Changbin pressed deeper. He leaned forward, putting his weight behind the stretch, and his body shifted closer. The angle changed. He was nearly over Seungmin now, one hand braced on the mat beside Seungmin's hip, the other holding his leg back.

And that's when Seungmin felt it.

His dad's shorts—loose, thin—pressed against the back of Seungmin's thigh as Changbin leaned in. Through the fabric, Seungmin could feel it.

His father's cock. Flaccid, heavy, a thick weight resting in the cotton. It dragged across Seungmin's supple skin even through layers, as Changbin adjusted his position, a slow, unconscious slide that lasted maybe two seconds.

Seungmin's breath caught. His hole spasmed. A pulse of cum leaked out, thicker this time, pooling against the mat beneath him.

Changbin didn't notice. Or he was pretending not to notice. His face was neutral, focused, dad-like. "Other side. Let's do the hip openers."

Seungmin rolled onto his stomach. And there he could see it. Minho's darkness. The familiar one.

Changbin straddled him—one knee on either side of Seungmin's hips—and pressed down on his lower back. The weight of Changbin's body settled over him, and Seungmin's face pressed into the mat. He could feel his dad's groin against his ass now, the soft cotton of those shorts separated from his bare skin by nothing. His father's cock, warm and heavy, rested in the cleft of his ass through two layers of fabric.

Seungmin bit his lip so hard he tasted copper. Tried holding back the moan.

Changbin pushed down. Seungmin arched. His hips lifted slightly off the mat, and his ass pressed back—just a fraction—into Changbin's groin.

Changbin's hands paused. Felt clammy. A micro-hesitation. Then he continued pressing, professional, steady. A dad helping his son relieve himself.

"Relax your back," he said. His voice was slightly rougher than before.

Seungmin relaxed. His body went limp beneath his father's weight, and he felt everything—the heat of Changbin's thighs against his sides, the pressure of those broad hands on his spine, the weight of his father's cock nestled against his ass through the shorts. His own cock was hardening beneath him, pressed into the mat, and he shifted his hips to adjust, feeling the slick of Minho's cum between his cheeks.

He almost moaned. Almost. The sound caught in his throat and came out as a shaky exhale. And his hyung was giving him a death glare from the armchair. Not yet. Reel him in. His eyes spoke.

Changbin heard it. His fingers pressed harder into Seungmin's lower back, thumbs working into the muscle along his spine. "Tense here," he murmured. "Been holding a lot of tension."

You have no idea, Seungmin and Minho thought.

Changbin worked his way up Seungmin's back, thumbs digging into the knots along his spine, and then back down. When he reached the base of Seungmin's spine, his thumbs dipped lower—just slightly—into the dip above his ass. The swell of Seungmin's cheeks was right there, bare, and Changbin's thumbs grazed the top of the cleft.

Changbin's breath hitched a bit.

D-Did… did it jiggle?

He pulled back, an unceremonious feeling rising in his groin. "Roll over. Let's do the front."

Seungmin rolled over. His cock was half-hard, lying against his stomach, and he saw Changbin's eyes flicker down for a fraction of a second before snapping back up. Seungmin's face burned. His cock twitched under his father's gaze.

Changbin lifted Seungmin's leg again, pressing it back toward his chest, and this time the angle was different—Seungmin on his back, leg up, hole exposed and leaking. The cum was more visible now. It's because Seungmin at this point, is deliberately letting it fall out. A thin smear across his inner thigh, a glossy sheen around his swollen hole. Unmistakable.

Changbin stared at the wall above Seungmin's head. His jaw was tight.

"Appa," Seungmin said softly. "Is something wrong?"

Minho guffawed, and they both heard it. Fucking hell.

Why was Minho more interested in their stretching?

"No." Changbin's voice was controlled.

"Just tight. Here—" He pressed Seungmin's leg further back, opening him wider, and his other hand came down on Seungmin's inner thigh to stabilize the stretch. His fingers were inches from Seungmin's hole. He could feel the heat radiating from it. Could see the cum glistening.

He didn't touch it. He didn't say a word.

But his gaze—Seungmin caught it. Just for a moment, Changbin's eyes dropped. Not to the leg, not to the stretch. Lower. To the space between Seungmin's legs. And there was something in that look that wasn't paternal. Something darker. Something hungry that flickered behind the dad-mask and vanished as quickly as it appeared.

Seungmin's heart hammered. He looked. He actually looked.

Changbin released the leg and stood up. "Good. That should help. Drink water, stay warm."

He turned toward the kitchen, and as he did, his hand brushed against Seungmin's hip—incidental, automatic—and his fingertips dragged across the curve of Seungmin's ass.

A quick swipe. Brief. But when his hand came away, there was something on his index finger. A thin, translucent streak. White. Viscous. Cumlike.

Changbin didn't look at it. Not while Seungmin was watching. He walked to the kitchen, turned the corner, and out of sight—

—brought his finger to his lips.

His tongue touched the streak. Tasted it. Salty. Slightly bitter. Undeniably, unmistakably semen.

He sucked his finger clean.

And then he stood alone in his kitchen, hand braced on the counter, staring at nothing, and the question formed in his mind—quiet at first, then deafening.

Who's been fucking my son?

His cock was hard in his shorts. He could feel it pressing against the fabric, thick and heavy, and he pressed his palm against it—not stroking, just pressing—and exhaled through his nose.

Who's been fucking my son?

He thought about the sweatpants. Minho's sweatpants on Seungmin's body. No underwear. He thought about the way they'd been sitting together at breakfast, knees touching. He thought about how close they'd been since he got back. How comfortable they were. How Seungmin had smiled at Minho in a way he'd never smiled before—soft, private, intimate.

No. Don't go there.

His cock throbbed.

Don't.

Minho watched his dad for a long while.

There was so much eerie silence now.

But Minho never missed it. The slow darkness was creeping into their dad's eyes. Minho pretended to be busy on his phone, and he heard it. Seungmin was too embarrassed and flushed that he excused himself to prevent Minho from ravaging him then and there, while their dad would most likely interfere and abandon them for good.

A content sigh. And his dad's face shifted into something out of anger. Each shift of muscle was telling than the other. Appa looked furious. Appa didn't question. Appa needed more.

Minho looked. Changbin had cleaned something off his finger.

Something that belonged to him. To Seungmin. To them both. Like a proposal. An invitation.

Close. But not yet.

Seungmin stood in the shower ten minutes later, water streaming down his back, and pressed his forehead against the tile. The hot water ran between his legs, washing away the multiple loads that leaked out of his rim.

He reached back, two fingers pressing into himself, and gasped at the tenderness. His hole was swollen, puffy, oversensitive. He worked his fingers in and out slowly, cleaning, and the water turned faintly cloudy with what he pushed out.

His mind replayed the stretching session. Appa's hands on his back. The weight of his father's body over him. And that moment—that two-second, accidental, universe-altering moment—when Appa's cock had dragged across the back of his thigh through those thin shorts.

He remembered the heft of it. Even soft, even confined, it had been substantial. Thicker than hyung's, he thought. Maybe not as long, but thicker. Denser. The kind of weight that would stretch him open in a way Minho's hadn't managed yet.

His cock hardened under the water, standing straight up against his stomach, and he wrapped his free hand around it. Slow stroke. Thumb over the head.

He thought about Changbin's gaze. That flicker. That split-second drop of his father's eyes to his exposed, cum-slicked hole. The hunger behind it.

He looked. He wanted to look again.

Seungmin stroked faster, fingers still inside himself, and his hips rocked—forward into his fist, back onto his fingers. The water was too hot. Steam filled the stall. He bit his lip and fucked himself on his own hand, imagining it was his father's cock. Thick. Heavy. Splitting him open the way his brother did.

Probably even better. Because he gave him that cock.

He knew better to use that cock.

He came with a choked sound, spurting against the tile, and the water washed it away before he'd even finished pulsing.

He stood there for a long time afterward, breathing hard, fingers still inside himself, the water turning lukewarm.

The gym was Changbin's church.

And his sons were the worshippers. Well… literally.

He'd built his life around the discipline of it—the 5 AM alarm, the meal prep containers stacked neatly in the fridge, the calloused palms and the permanent ache in his knees that reminded him he was alive. When the boys were still young, he'd dragged them along. Not asked. Dragged. Minho had complained the entire car ride the first time, slumped in the backseat with his earbuds in, muttering about child labour. Seungmin had been quieter about his resistance, but he'd quit after twenty minutes on the treadmill and sat in the car for an hour reading webtoons.

But Changbin was persistent.

He'd built a small empire—a logistics company with twelve employees and a warehouse in Incheon—from nothing but stubbornness and a body that could outwork anyone in the room. He wanted his sons to have the same foundation. Not the company, necessarily, though he hoped one of them would take it over someday. The discipline. The understanding that your body was the one thing nobody could take from you if you maintained it.

Eventually, both boys had come around. Minho found his groove in calisthenics and boxing, lean muscle stacking onto his frame in clean, defined lines. Seungmin gravitated toward the free weights and the cable machines, his body responding fast—broadening shoulders, thickening thighs, the V-taper Changbin recognized from his own twenties.

Now, at an age where they're both matured enough, the three of them made it a routine when Changbin was home. Saturday mornings, usually. But Changbin had been gone for days, and the itch in his muscles was unbearable, so when he'd suggested it over lunch—Let's hit the gym this afternoon, both of you, no excuses—neither son had objected.

Minho had smiled. Seungmin had nodded, ears pink.

Who could deny their dad?

They drove in Changbin's SUV, the one with the dented rear bumper from a parking lot incident two years ago that he kept meaning to fix. Minho rode shotgun, scrolling through his phone. Seungmin sat in the back, knees spread, wearing loose basketball shorts and a compression shirt that was maybe one size too small. Changbin glanced at him in the rearview mirror at a red light and noted the way the shirt clung to his son's torso—the defined chest, the flat stomach, the faint traces of his abs.

Good kid. Keeping up with it. Changbin provided.

He didn't notice the way Seungmin's shorts rode up when he sat. Didn't notice the faint bruise on Seungmin's inner thigh, hidden beneath the fabric. Didn't notice the way Seungmin shifted every few minutes, adjusting himself, the tender ache between his legs making every bump in the road a small, private torment.

Minho noticed. Minho was counting the bumps.

The gym was a mid-range chain in a strip mall near their apartment—a clean, well-lit space with rows of machines, a free weight section, and a small functional training area with mats and a rig. Changbin swiped all three cards at the front desk, and they filed in.

Changbin led them to the squat racks first. Always the squat racks. He believed in compound movements the way some people believed in scripture.

"I'll start," he said, loading the bar. "Minho, spot me. Seungmin, warm up on the leg press."

They fell into the familiar rhythm. Changbin under the bar, stance wide, core braced. Minho behind him, hands hovering near his elbows, eyes focused. The weight went up. Came down. Went up again. Changbin's form was immaculate—controlled descent, explosive drive, perfect depth. His thighs strained against his shorts, veins rising along his forearms, sweat already beading at his hairline.

Seungmin watched from the leg press ten feet away, feet planted on the plate, knees bending. He pushed the weight up, and his face scrunched—not from effort, though the weight was decent. His hole was still tender from the night before, and the pressure of the seat against his ass made the ache flare. Every rep shifted his weight on the pad, and the swollen ring of muscle pressed into the vinyl, sending dull pulses of sensation through his pelvis.

He bit his lip and kept pressing.

Stop. Focus on the set.

But his eyes drifted to Changbin. His father was on his fifth rep now, face flushed, breath controlled, the bar bending slightly across his traps. The muscles in his legs were engorged, thick and striated, and his shorts had ridden up to mid-thigh. A dark sweat stain was spreading across his chest, turning the grey shirt translucent in patches.

Seungmin's cock twitched in his jockstrap.

He looked away. Stared at the ceiling. Counted the tiles.

One, two, three, four—

His phone buzzed. A text from Minho.

stop staring at appa's thighs. i can see you from here.

Seungmin locked his phone and shoved it under his water bottle.

They rotated through the circuit. Changbin moved to the bench press. Minho took the pull-up bar. Seungmin migrated to the cable machine for rows, settling into a rhythm that let his mind drift—pull, squeeze, release, pull, squeeze, release.

Changbin was mid-set on the bench when Minho appeared beside him. Not to spot—Minho was doing chin-ups, not bench—but to lean against the rack and watch.

"Good form, Appa."

"Always. Why do you think I look this good for my age, huh?" Changbin grunted, pressing the bar up.

Seungmin nods haphazardly, not even noticing his own weights.

Minho's eyes weren't on the bar.

They were on Changbin's body—the spread of his arms, the arch of his back, the way his shorts pulled tight across his hips when he drove upward. The waistband had slipped, and Minho could see the top edge of his father's jockstrap—white elastic, thick band, the kind of industrial undergarment a man like Changbin would wear. Functional. No-nonsense.

Minho's tongue touched his lower lip.

"Your elbows are flaring," Minho said casually. "Tuck them."

Changbin adjusted. "Since when are you the form coach?"

"Since I started paying attention." Minho smiled. "Because you taught me and Seungmin. But Seungmin's over there struggling. Maybe you can go help him, Appa." Minho pointed out.

Changbin finished his set, racked the bar, and sat up. He looked over at Seungmin, who was doing cable rows with his face scrunched, teeth sunk into his lower lip, a flush creeping up his neck. A little distracted.

He walked over. "You okay?"

"Fine," Seungmin said, pulling the cable. "Just—tight. My lower back."

"Here." Changbin moved behind him, standing close. "Straighten up. You're rounding your spine. Chest up." He put his hand on Seungmin's upper back, between the shoulder blades, and pressed. "There. Feel the difference?"

Seungmin felt the difference. He felt his father's broad palm flat against his back, the heat of it through the compression shirt, the weight of those fingers. His hole clenched involuntarily, and a fresh wave of soreness pulsed through him.

"Yeah," he managed. "Yeah, I feel it."

Changbin stayed there for a moment—hand on his son's back, watching the cable move—and then his hand slid lower, adjusting Seungmin's posture. Down to the mid-back. Then, without thinking, to the lower back, right above the waistband of his shorts. His thumb pressed into the muscle beside Seungmin's spine.

Seungmin's breath stuttered.

"Tight here," Changbin murmured. "You need to stretch more. We did some this morning, but we should do a full session tonight."

We. The royal we. Father and son, stretching together on the living room floor, Seungmin naked again, Changbin's hands on him again—

"Okay," Seungmin said, voice thin.

Changbin's hand lingered. One second. Two. Then he pulled away and clapped Seungmin's shoulder. "Good. Keep going. I'm going to do deadlifts."

He walked away. Seungmin exhaled shakily and adjusted his shorts, which had tented slightly at the front.

The deadlift platform was in the corner, and Changbin set up with the focus of a man performing a ritual. Chalk. Belt. Shoes off. He loaded the bar to 180—not his max, but enough to work with after a few days off—and positioned himself over it.

Minho drifted over again. This time, he brought Seungmin.

"Watch Appa's form," Minho said, standing beside his brother. "That's how you deadlift."

Changbin gripped the bar, set his back, and pulled. The weight came up smooth, locked out at the top, his body a rigid line of muscle and tension. He held it for a beat, then lowered it with control.

"Beautiful," Minho said.

Changbin snorted. "It's a deadlift, not a painting."

Three reps. Four. Five. Changbin lowered the bar and stood up, breathing hard, chalk dust on his hands and thighs.

"Your turn," he said, looking at Minho. "Let's see if you've been keeping up."

Minho stepped onto the platform. He stripped off his tank top—bare-chested, lean, the lines of his torso sharp and defined—and approached the bar. He loaded it lighter, 120, and prepped.

Changbin watched. Seungmin watched.

Minho pulled the first rep with clean form. Second rep. Third. On the fourth, his back rounded slightly, and Changbin moved in to correct him.

"Hips lower. Chest up." Changbin's hand came down on Minho's lower back, pressing flat, the same way he'd touched Seungmin. "There. Drive through your heels."

Minho pulled the rep. At the top, locked out, he glanced over his shoulder at his father. Changbin was right behind him, close enough that Minho could feel his breath on the back of his neck.

"Good," Changbin said. "Again."

On the fifth rep, Minho's form broke, and Changbin's hand dropped lower, gripping Minho's hip to stabilize him.

"Set it down. You're done."

Minho set the bar down and straightened up, turning to face his father. They were close. Minho's bare chest was inches from Changbin's shirt, and he could smell his dad's sweat—salty, warm, masculine. He looked up at Changbin's face, then down, just for a beat, at the way Changbin's shorts tented slightly.

Not hard. Not quite. But thick. Heavy. The outline of his cock visible through the damp fabric, pressed against his thigh by the jockstrap.

Minho looked back up. "Thanks, Appa."

Changbin stepped back. "Seungmin. You're up."

Seungmin approached the bar with his heart hammering.

He loaded it light and set up. The position required him to bend at the waist, back flat, hips high, and the angle made his shorts ride up. The loose basketball shorts he'd chosen specifically for this—the ones Minho had handed him that morning with a look that said wear these—gaped at the leg holes when he bent over. If anyone was behind him, they'd see straight up the shorts. His jockstrap. The curve of his bare ass above the strap's waistband. The bruise on his inner thigh.

He gripped the bar and pulled. The weight came up, locked out, and he lowered it. His face scrunched—not from the weight, but from the way the movement jarred everything inside him. His sore hole protested. His lower back ached. His thighs trembled.

"Good," Changbin said from behind him. "Keep your back flat. You're rounding."

Seungmin hadn't noticed his father move behind him. Changbin's hand landed on his lower back, pressing down, and the contact sent a jolt through Seungmin's body that had nothing to do with deadlifts.

"Here." Changbin's other hand came to Seungmin's hip, adjusting his position. "Hips back. Feel the hinge."

Seungmin felt the hinge. He also felt his father's hands—one on his back, one on his hip—and the position was so close to the way Minho had held him the night before that his body responded on instinct. His back arched. His hips tilted. His ass pushed back, just slightly, just enough that the curve of it pressed toward Changbin's groin.

Changbin's hand on his hip tightened. A fraction. A grip.

Did he just—

"Again," Changbin said. His voice was steady.

Seungmin pulled another rep. His face scrunched, and a sound escaped—low, soft, a groan that could have been effort and could have been something else entirely. It echoed off the platform's rubber surface.

"Easy," Changbin murmured. "Don't force it."

Don't force it. Seungmin almost laughed. He was forcing everything—every breath, every rep, every second of normalcy. His cock was half-hard in his jockstrap, his hole was throbbing, and his father's hands were on him in a room full of strangers, and he was supposed to act like this was just a deadlift.

He pulled one more rep, and on the way down, his form broke. His back rounded, his hips dropped, and Changbin moved in—both hands on Seungmin's hips now, pulling him back into position, chest against Seungmin's back, the full length of his father's body pressed against him.

Seungmin's brain whited out.

He could feel everything.

Appa's chest against his back. His thighs against the back of his legs. And there—right there, at the small of his back—daddy[s groin. The weight of his father's cock, soft but substantial, pressed against the top of Seungmin's ass through their shorts. It sat there for two seconds, three, four—longer than the stretching session, longer than the accidental brush that morning—and Seungmin's hole clenched so hard he winced.

"Set it down," Changbin said, his mouth near Seungmin's ear. "You're done."

Seungmin dropped the bar. It clattered against the platform. He straightened up, and Changbin stepped back, hands off, already walking toward his water bottle.

Seungmin stood there, chest heaving, and nobody said a word.

"Good session," Changbin announced, trying to act casual about it, already reaching for his towel. "Let's hit the mats. Some stretching, then we're done."

They spread out on the mats near the back of the functional area. A few other gym-goers were around, but the corner was relatively private. Changbin lay on his back, arms overhead, stretching his lats. Minho sat cross-legged beside him, stretching his shoulders. Seungmin sat on Changbin's other side, pulling his feet toward his groin in a butterfly stretch.

"Appa," Seungmin said, voice light, casual, innocent. "Can you lift me up?"

Changbin opened one eye. "What?"

"Lift me up. Like a press." Seungmin shifted onto his knees, then moved—smoothly, naturally, without asking permission—into Changbin's space. He straddled Changbin's waist, knees on either side of his father's hips, and settled his weight onto Changbin's stomach. "Like when we were kids. You used to press us overhead."

Changbin exhaled. Deep. The sound came from somewhere low in his chest, and his hands came up instinctively to grip Seungmin's waist—steadying him, supporting him, the way a father does when a child climbs on.

But Seungmin wasn't a child anymore.

He was a grown man, more muscle mass, lean, sitting on his father's stomach with his thighs spread wide and his weight pressing down. His shorts bunched at the groin, and the outline of his cock—half-hard, tucked sideways in the jockstrap—was visible through the thin fabric.

"Can you lift me up, daddy?" Seungmin said, and the word—daddy, not appa, not dad—landed like a stone in still water.

Changbin's jaw tightened. His fingers dug into Seungmin's waist. He could feel the heat of Seungmin's body through the fabric, the weight of him, the way his thighs gripped Changbin's sides.

"Seungmin—"

"Please? I want to see if you still can."

What the fuck is happening?

The thought was loud. Deafening. Changbin stared up at his son—flushed, bright-eyed, the picture of filial playfulness—and something in his gut twisted.

This was normal. This was a thing he'd done a hundred times when the boys were small. Press them overhead, make them laugh, set them down. A party trick. A dad trick.

But Seungmin's face wasn't a child's face. And the weight on his stomach wasn't a child's weight. And the way Seungmin's hips were settled—low, close, the crease of his ass pressed against Changbin's groin through their shorts—wasn't the way a son sits on his father.

Changbin exhaled again. Slow. Controlled. The kind of breath a man takes when he's holding something back.

"Fine." He braced his core, adjusted his grip on Seungmin's waist, and pressed.

Seungmin went up. Changbin's arms extended fully, locking out, holding his son overhead. Seungmin's hands found Changbin's shoulders for balance, and he looked down at his father from above—grinning, legs still spread, shorts hanging.

From below, Changbin could see straight up the leg of Seungmin's shorts. The jockstrap. The pouch, containing Seungmin's cock and balls, the fabric stretched. And behind the pouch—bare skin. The curve of Seungmin's ass, the cleft, and at the bottom of it, just visible in the shadow—puffy, red, slick with something that caught the gym's fluorescent light.

Changbin's arms shook. Not from the weight.

He lowered Seungmin slowly, and Seungmin's body slid down his—chest against chest, stomach against stomach, Seungmin's ass dragging down Changbin's torso until it settled on his groin. Full weight. Full contact. Seungmin's ass, through the shorts, pressed against Changbin's cock.

Changbin was hard. He could feel it—his cock straining against the jockstrap, thick and rigid, and Seungmin had to feel it too, had to feel the solid length of it beneath him, because his breath hitched and his thighs squeezed and his face—his beautiful, flushed face—scrunched in a way that had nothing to do with effort.

"Good lift," Seungmin whispered. "You're so strong, Appa."

He climbed off. Casual. Easy. Like nothing had happened.

Changbin lay on the mat, staring at the ceiling, cock hard in his shorts, heart pounding, and the question was no longer a question. It was a certainty.

Someone is fucking my son.

He sat up. Minho was watching him from across the mat, legs stretched in a split, arms folded. His expression was neutral. Pleasant. The smile at the corner of his mouth was the smile of a man who'd just watched a plan unfold exactly as designed.

"Good session, Appa," Minho said. "You still got it."

Changbin stood. His shorts tented at the front, and he held his towel in front of himself—discreet, practiced, the move of a man who'd been hiding gym erections since he was seventeen. "Shower. Let's go."

The locker room was small—two rows of lockers, a bench, and an open shower area with six heads. No stalls. No curtains. Just a tiled room with showerheads mounted on the wall, the way older gyms were built.

They were alone. The gym was quiet on a weekday afternoon, and the other few members had already come and gone.

Changbin stripped first. He faced his locker, back to his sons, and peeled off his shirt. His back was broad, slick with sweat, the muscles shifting as he moved. He pushed his shorts down, then his jockstrap—stepping out of both and standing naked in the locker room.

His cock hung between his legs, thick even soft, the shaft dense and veined, the head heavy and shaded. His balls were full, tight from the workout, hanging low in their sac. His ass was solid—two thick cheeks, the kind that came from years of squats and deadlifts, dimpled at the sides.

He grabbed his towel, wrapped it around his waist, and turned toward the showers.

Minho was already undressed. He stood at the adjacent lockers. His cock was average length but thick, resting against his thigh. He didn't cover himself. He stood with his back straight, shoulders relaxed, and watched his Dad walk past.

His eyes dropped to Changbin's ass.

He stared openly. No pretense, no glance. He stared at his father's thick, muscular ass as Changbin walked toward the showers, and his cock twitched—filling slowly, thickening against his thigh.

Seungmin was slower. He undressed with his back to the room, stepping out of his shorts and jockstrap carefully. His jockstrap was damp—not just with sweat. The pouch was stained, a thin white residue visible in the fabric. He balled it up quickly and shoved it to the bottom of his locker.

When he turned, Minho saw his brother's body in full. The bruises on his hips. The bruise on his inner thigh. The puffy, swollen state of his hole—red, slick, unmistakably used. Minho's cum had long been cleaned out of it, but Minho's claim was still evident. Still there.

The showers ran hot. Steam filled the room, fogging the tile, and the three of them stood under separate heads along the wall. Changbin at the far end. Minho in the middle. Seungmin closest to the door.

Changbin faced the wall, water running down his back, and tried to breathe. His cock was still half-hard, hanging heavy between his legs, and he kept his body angled away from his sons. The water ran over his chest, his stomach, his groin, and he focused on the heat, the steam, the normalcy of a post-workout shower.

But his mind wouldn't stop.

Someone is fucking my son. Someone is leaving cum inside him. Someone is grabbing him hard enough to bruise.

He thought about the clues here and there. The sweatpants. Minho's sweatpants. He thought about the bruise on Seungmin's inner thigh—the shape of fingers, the size of a man's grip. He thought about the way Seungmin's hole looked: swollen, red, leaking. Not fresh. Not a one-time thing. Used. Repeatedly. Regularly. Daily.

Someone close enough.

Minho's sweatpants on Seungmin's body. No underwear. Minho's hands on Seungmin's hips at breakfast. Minho whispering in Seungmin's ear. The way Seungmin looks at Minho when he thinks no one's watching—soft, private, the way you look at someone who's been inside you.

No. Stop.

His cock thickened. The water ran over it, hot, and he felt it growing—slow, stubborn, the kind of erection that comes from somewhere deeper than physical stimulation. He pressed his palm against it. Not stroking. Holding. Pushing it down.

They're your sons. They're your SONS.

He thought about Seungmin straddling him. The weight. The warmth. The way Seungmin's ass had pressed against his groin, and the way it had felt—the heat of it, the softness, the way Seungmin's thighs had gripped him. And the word. Daddy. Not Appa. Not Dad. Daddy. The word that wasn't supposed to mean anything but familial.

Have they gone mad? Have I gone mad?

He looked down. His cock was fully hard now, standing straight out from his body, the head flushed a shade of red He wrapped his hand around it, not to stroke, just to hide it, to contain it, to press it against his stomach where the water could wash over it and maybe the heat would make it go down.

It didn't go down.

Minho turned his head. Casual. Easy. Like a man checking the time.

He looked at him.

His father was standing under the showerhead, body angled toward the wall, one hand braced on the tile, the other wrapped around his cock. The water ran down his back, over his ass—thick, muscular, the cheeks flexing as he shifted his weight—and Minho's gaze traced the line of his father's body. Shoulders. Spine. Dimples. Waist. Ass.

Thick. So fucking thick.

Minho licked his lips. Guess that's where my little brother got that ass.

Minho's cock hardened fully under the water, standing straight up against his stomach, and he didn't hide it. He turned his body slightly, letting the angle give him a better view of Changbin's ass, and he stared. Openly. The water ran over his own body, over his chest, over his cock, and he let his hand drift down—not stroking, just resting, just holding the weight of himself as he looked at his father.

Changbin shifted. Turned his head slightly, as if sensing eyes on him.

Minho didn't look away.

Their eyes met. For one second. Two.

Changbin's gaze dropped—instinct, reflex, the pull of a hard cock in a steamy room—and he saw Minho's erection. Full. Unashamed. His son's cock, hard and wet, and his son's eyes on his ass.

Changbin turned back to the wall. His hand tightened on his own cock.

What the fuck. What the fuck. What the fuck.

Seungmin stood under his showerhead, water streaming down his face, and looked.

Not at the wall. Not at the floor. At his father.

Changbin was angled away, but the steam and the position of the showerheads gave Seungmin a side profile. His father's body—broad, thick, hairy in all the places Minho wasn't. The chest, covered in a mat of dark hair that thinned to a line down his stomach. The arms, still pumped from the workout, veins running beneath the skin. And his cock.

Seungmin stared.

He'd felt it. Against his back during the deadlift. Against his ass during the ring hold. Pressed into him when Seungmin straddled him on the mat. He'd felt the weight, the thickness, the way it had grown. But he hadn't seen it.

Now he saw it.

Daddy's cock was thick. Thicker than Minho's by a noticeable margin—the shaft dense, the girth substantial, the kind of thickness that would make a mouth water and a hole clench in anticipation. It wasn't long—maybe average, maybe slightly above—but the width of it was what made Seungmin's breath catch. The head was fat, dark, flushed with blood, and the foreskin had retracted halfway, exposing the glossy tip. His balls hung heavy, full.

Seungmin's hole clenched. The soreness flared. And beneath the pain, a deep, hungry ache bloomed—the kind of ache that wasn't about being filled but about being stretched. About taking something bigger than what he was used to. About his father's cock splitting him open.

That's what Minho meant. That's what he was talking about.

He thought about Minho's words from the night before: When Appa finally gets his hands on you. When he stretches you out on the living room floor.

His cock hardened under the water. He didn't touch it. Didn't need to. The sight of his father—naked, hard, trying to hide it—was enough. He let the water run over him and stared, hoping it was inside him.

They dressed in silence. Towels first, then clothes. Changbin moved quickly, efficiently, not looking at either of his sons. Minho took his time, pulling on his shorts without underwear, letting the towel drop before he stepped into them. Seungmin dressed with his back to the room again, burying his stained jockstrap at the bottom of his gym bag.

Nobody spoke.

The drive home was quiet. Changbin kept both hands on the wheel. Minho looked out the passenger window. Seungmin sat in the back, pressing his forehead against the glass, watching the city blur past.

His phone buzzed.

Minho: did you see it

Minho: did you see appa's cock

Minho: thick right? :)

Seungmin locked his phone and closed his eyes.

In the front seat, Changbin's hands tightened on the steering wheel. His knuckles were white. His cock was still half-hard in his shorts, and he could feel it every time he shifted. The image of Minho's erection—unashamed, deliberate—burned behind his eyes. The feeling of Seungmin's ass against his groin burned in his body.

They're your sons.

His cock throbbed.

They're your sons.

Changbin could only leak a few spurts of precome in his underwear in response to the thought.