The doorbell rang, a sharp, discordant chime in the silent house. Izuku flinched on the couch, his knees pulled to his chest. Katsuki’s hand, which had been resting on the back of his neck, stilled.

“That’ll be them,” Katsuki said, his voice a low rumble. He didn’t move his hand.

Izuku watched him stand, the leather of his pants creaking. He moved to the door with that same predator’s grace, and Izuku felt the loss of his touch like a cold draft. He tucked his face against his knees, breathing in the cedar smell of the couch.

Voices filtered in. Eijiro’s, warm and concerned. “Hey, man. How is he?”

“Alive,” Katsuki grunted. “Come in.”

The floorboards groaned under new weight. Izuku kept his head down until a shadow fell over him. He looked up. Eijiro stood there, his red hair bright even in the dim living room light, his face soft with a worry that looked foreign to Izuku. Tesutesu loomed behind his father, black eyes scanning the room before landing on Izuku.

“Hey, kid,” Eijiro said, lowering himself to sit on the coffee table, putting them nearly eye-level. “Heard you had a real shit time.”

Izuku’s throat tightened. He just nodded.

“Stupid fucker,” Tesutesu muttered, crossing his arms. He wasn’t looking at Izuku anymore; he was watching Katsuki, who leaned against the doorframe, a silent sentinel. “Should’ve let you kill him, Bakugou.”

“Paperwork,” Katsuki said simply, his crimson gaze fixed on Izuku. “Wasn’t worth it.”

Eijiro reached out, slow, and put a hand on Izuku’s ankle over his sock. It was a kind, grounding touch. Izuku didn’t flinch. “You feelin’ any better? In here, I mean.” He tapped his own chest.

The question was too big. Izuku’s eyes flicked to Katsuki, then back to Eijiro’s kind face. “I… I don’t know,” he whispered. “It felt… empty. What he did. It just felt like nothing. And then I felt…” He trailed off, shame heating his cheeks.

“You felt dirty,” Tesutesu finished, his voice flat. “Cause it wasn’t him. Makes you need the real thing even more. To wash the nothing out.”

Izuku stared at him, a lump in his throat. He nodded again, helpless.

Katsuki pushed off the doorframe. The movement drew every eye. He walked over, his presence swallowing the space between the couches. He didn’t sit. He stood behind Izuku, his rough hands coming down to rest on Izuku’s slender shoulders. Possessive. Anchoring.

“He’s mine,” Katsuki said, the words not a boast, but a brutal, simple fact spoken to the room. “That bastard tried to touch what’s mine. Izuku knows the difference now.”

Eijiro looked up at Katsuki, understanding passing between them. A father’s understanding. “Yeah,” Eijiro sighed, his hand still warm on Izuku’s ankle. “He does. So… you takin’ care of him? Makin’ it right?”

Katsuki’s thumbs dug into the tense muscles of Izuku’s shoulders. “I am.”

Tesutesu uncrossed his arms. His gaze was on his own father now, a heat in it that was familiar to Izuku. “You checkin’ on him, or you just wantin’ to see, old man?”

Eijiro looked back at his son, and the kindly worry on his face shifted, softened into something else. Something open and willing. A faint blush colored his cheeks. “Both,” Eijiro admitted, his voice dropping.

The air in the room changed. It thickened. Katsuki’s hands on Izuku’s shoulders grew heavier. Izuku could feel the calluses through his thin shirt.

“Then see,” Katsuki growled. His fingers curled into the collar of Izuku’s shirt and pulled, not hard, but enough to expose the side of his throat. The fading bruises from Yo’s fingers were still there, yellowish-green. But beneath them, darker, fresher, were the marks Katsuki had left in the bath. Love bites. Claims. “See how I take care of what’s mine.”

Eijiro’s breath hitched. His eyes weren’t on the bruises anymore. They were on the way Izuku leaned back into Katsuki’s touch, the way his lips parted, the helpless devotion on his face. Tesutesu took a step closer to his father, his large hand coming to rest on Eijiro’s spiky red hair, a mirror of Katsuki’s hold.

“He looks full of you,” Tesutesu said to Katsuki, his other hand coming down to squeeze Eijiro’s broad shoulder. “Ours is empty.”

Eijiro whimpered. The sound was small, eager. He turned his face into Tesutesu’s thigh.

Katsuki looked from the Kirishimas back down to his son. His hands slid from Izuku’s shoulders down his arms, a slow, claiming stroke. “You want to show them, baby boy?” he murmured, his lips near Izuku’s ear. “You want to show them how Daddy makes it right?”

Izuku trembled. He looked at Eijiro, whose eyes were now dark with a wanting Izuku recognized. He looked at Tesutesu, whose grumpy expression had melted into pure, possessive intent. He nodded, a tiny, desperate movement. “Yes, Daddy.”

“Good boy,” Katsuki breathed. He kept one hand on Izuku, but with the other, he gestured to the space in front of them, to the deep, soft rug on the dark wood floor. An unspoken command.

Tesutesu understood first. He pulled Eijiro up from the coffee table, his movements sure. “C’mon, Daddy. Let’s get comfortable.”

Eijiro went, pliant, letting his son guide him down to the rug. He lay back, his big body looking suddenly soft and receptive, his red eyes fixed on Tesutesu’s face with utter devotion. Tesutesu knelt over him, one hand going to the button of his father’s jeans.

Katsuki finally moved. He shifted Izuku off the couch, down onto his knees beside the Kirishimas. The cedar smell was stronger here, mixed with the lemon polish. Katsuki knelt behind Izuku, his chest to Izuku’s back, his heat immediate and overwhelming. His arms wrapped around Izuku’s waist, his big hands splaying over Izuku’s stomach.

“Watch,” Katsuki commanded, his voice vibrating through Izuku’s spine. He nosed aside Izuku’s green curls to speak directly into his ear. “Watch how a real father loves his son.”

Across from them, Tesutesu had Eijiro’s jeans and boxers shoved down his thick thighs. Eijiro’s pussy was exposed, swollen and glistening cherry red, his big t-dick already hard and peeking out. Tesutesu didn’t hesitate. He lowered his head, his silver hair a stark contrast against his father’s thigh, and licked a broad, wet stripe from Eijiro’s hole all the way up to that sensitive clit.

Eijiro cried out, his back arching off the rug. “Tesu!”

Izuku watched, mesmerized, as Tesutesu ate his father with a single-minded intensity, his tongue delving deep, his lips sucking. It was rough, messy, and utterly consuming. Eijiro’s hands fisted in his son’s hair, holding him close, his hips lifting off the ground to meet every thrust of that talented tongue.

Katsuki’s hands on Izuku’s stomach began to move. One slid down, past the waistband of his soft pants, into his underwear. His fingers found Izuku’s tiny, hairless cunt, already soaking wet. Izuku gasped, his head falling back against Katsuki’s shoulder.

“This is what you need, isn’t it, Izu?” Katsuki growled, two thick fingers sliding inside him with no preamble, filling the aching emptiness Yo had left. “Not that nothing. This.” He curled his fingers, rubbing a spot that made Izuku’s vision whiten. “My fingers. My cock. Only mine.”

“Yes, Daddy,” Izuku sobbed, his body bowing, his small tits straining against his shirt. He couldn’t look away from the Kirishimas. Tesutesu was fucking his father with his tongue, hard and fast, and Eijiro was babbling, tears of pleasure streaking from the corners of his eyes.

“Gonna squirt, Daddy’s gonna—!” Eijiro warned, his voice shattered.

Tesutesu growled against him, the vibration making Eijiro shriek. A gush of clear fluid erupted from Eijiro’s pussy, soaking Tesutesu’s chin and his father’s thighs. Tesutesu drank it down, lapping at him through the aftershocks.

Eijiro's hands were already scrambling at his own shirt, pulling it over his head. "Get these off, baby, please," he panted, his hips still twitching from his orgasm. He spread his thick thighs wider on the rug, presenting his glistening, swollen pussy. "Look at it. Look how empty it is for you. Only for you."

Tesutesu shoved his own pants down, his massive, thick cock springing free, already leaking. He loomed over his father, black eyes burning. "Tell them, Daddy. Tell them who this pussy belongs to."

"You!" Eijiro cried, his voice breaking. "I birthed you from it and now it's yours, only yours, fuck it, Tesu, show them how my own boy owns me—"

Tesutesu didn't make him beg again. He lined up his broad, uncut head at Eijiro's dripping entrance and pushed. It was a slow, relentless invasion, the stretch visible, Eijiro's mouth falling open in a silent scream of pure relief.

Izuku watched, Katsuki's fingers still working inside him, as Tesutesu buried himself to the hilt. Eijiro's back arched off the floor, a choked sob escaping him. "Yes! Fills me up, baby, God—"

"Fuck," Katsuki growled into Izuku's ear, his own hips grinding against Izuku's ass. Izuku could feel the hard length of his father's cock trapped in his jeans, pressing against him. "Look at that. Look how he takes it. That's a real son. That's a real father."

Tesutesu began to move, a hard, deep, punishing rhythm that made the muscles in his back cord. The wet, slapping sound of his balls hitting Eijiro's ass filled the room, mingling with Eijiro's ragged cries. "Daddy's pussy," Tesutesu grunted, each thrust punctuating his words. "My. Fucking. Pussy."

"Clothes. Off. Now," Katsuki snarled, his patience gone. His hands left Izuku's body to rip at his own shirt, then his belt. Izuku fumbled with his pants, his fingers clumsy, pushing them and his underwear down his thighs. Throwing his big hoodie to the side after it's taken off. The cool air hit his whole body, making him shiver.

Katsuki kicked his own jeans aside. His huge, girthy cock stood out, angry and red, pre-cum beading at the tip. He pulled Izuku back against his chest, skin to skin now, his heat searing. One hand wrapped around Izuku's throat, not squeezing yet, just holding. A promise.

"You see that, Izu?" Katsuki murmured, his other hand guiding his cockhead to Izuku's soaked opening. He rubbed the thick crown through Izuku's folds, making him whimper. "You see how a good boy takes care of his father's needs? You gonna show them how good you are for me?"

Izuku nodded frantically, his eyes glued to the sight of Tesutesu pounding into Eijiro, to Eijiro's blissed-out, tear-streaked face. "Yes, Daddy. Please."

Katsuki pushed inside. It was a slow, burning stretch that stole Izuku's breath. He was so tight, always so tight for him, but so wet, yielding. Katsuki seated himself fully with a groan that was pure possession. "That's it. Take all of me. Show them whose cunny boy you are."

He began to move, a deep, rolling rhythm that was entirely his own. His hand on Izuku's throat tightened, just a little. Izuku's head swam, pleasure sparking behind his eyes. He cried out, the sound joining the symphony of skin and moans in the room.

"Look at them, Ei," Tesutesu grunted, his pace never faltering. "Look at Katsuki's boy. He's full. You see that? You wanna be that full for me?"

Eijiro turned his head, his red eyes hazy. He watched as Katsuki fucked into Izuku with deliberate, claiming strokes, as Izuku's small tits bounced, his mouth slack with pleasure. "Yeah," Eijiro breathed. "Wanna be… just like that. For you. Only for you."

"Gonna fill you up, Daddy," Tesutesu grunted, his hips slamming into Eijiro's with a wet, brutal rhythm. "Gonna pump my seed so deep in your womb. Gonna breed you. My own fucking Daddy, impregnate you with my baby."

Eijiro sobbed, his big body convulsing around his son's cock. "Yes! Please, Tesu, do it! I've waited—" He choked, nails digging into Tesutesu's back. "Since you were my little boy, I've dreamed of you giving me a baby. Breed me, baby, make it true!"

Katsuki’s thrusts into Izuku stuttered, a harsh groan leaving his lips. His hand tightened on Izuku’s throat. “You hear that, Izu? You hear what a real son does for his father? He plants his future right inside him.”

“Daddy,” Izuku whimpered, the pressure on his windpipe making the pleasure sharpen, bright and terrifying. He was so full, Katsuki’s massive cock stretching him with every deep roll, the ache a perfect counterpoint to the fire sparking where their bodies joined.

Across from them, Tesutesu’s rhythm broke, turning frantic. “Gonna cum, Daddy. Gonna fill you right now. Take it, take your son’s fucking cum!”

Eijiro screamed, a raw, shattered sound of pure triumph. His hips jerked off the rug, his pussy clenching visibly around the base of Tesutesu’s cock as Tesutesu slammed home and stilled, his own roar muffled against his father’s neck. They locked together, trembling, Tesutesu’s release pumping deep inside.

Katsuki’s grip on Izuku’s throat tightened as he spread the boy’s thighs wider with his own knees, opening him up brutally on his cock. He changed the angle, driving up into that tight, greedy cunt with sharp, piston-like thrusts that punched the air from Izuku’s lungs.

“Look at that,” Tesutesu grunted, still buried deep in his own father. He rocked his hips in a slow, possessive grind, keeping Eijiro full as they both watched. “Look how he takes it. Just a hole for his daddy.”

Eijiro’s red eyes were wide, his breath hitching as he watched Katsuki’s heavy balls slap against Izuku’s ass with every brutal drive. “So deep,” he murmured, his own hips pushing back against his son’s slow grind.

“You like watching my boy get fucked, Ei?” Katsuki growled, his rhythm never faltering. Sweat dripped from his chin onto Izuku’s shoulder. “You like seeing how good he is for me?”

“Yeah,” Eijiro breathed, a shiver running through him. “He’s so pretty for you, Kats.”

Izuku could only sob, each thrust lighting up his nerves, the stretch bordering on pain in the best way. His small tits bounced with the force of it, his nipples tight and aching. “Daddy, please—!”

“Please what?” Katsuki snarled, his hand leaving Izuku’s throat to grab a handful of his green hair, yanking his head back. “Tell them what you are.”

“Your cunny boy!” Izuku cried, the words ripped from him. “Just your cunny boy, Daddy, only yours!”

A rough, approving sound rumbled in Katsuki’s chest. He leaned down, his teeth scraping the shell of Izuku’s ear. “Damn right. And this cunny’s gonna milk my cock dry. You feel that? You feel how bad I need to cum inside you?”

Izuku nodded frantically, his body clamping down around the thick invasion. He was so close, the pressure coiling low in his belly, sharp and urgent.

“He’s gonna squirt,” Tesutesu observed, his voice a low, interested rumble. He sped up his grinding against Eijiro’s cervix, making his father gasp. “Look at his face. He’s right there.”

“Don’t you dare,” Katsuki commanded, his thrusts turning shallow, teasing. He circled his hips, grinding the root of his cock against Izuku’s clit. “Not until I say. You hold it for me, baby boy.”

A broken whine escaped Izuku. He trembled, teetering on the edge, his knuckles white where he gripped Katsuki’s thighs. “I can’t, I can’t—”

“You can,” Katsuki said, his voice dropping into something terrifyingly soft. He stilled completely, buried to the hilt. “You’re my good boy. You’ll do what I say.”

The silence was thick, broken only by ragged breathing and the wet sound of Tesutesu moving slowly in his father. Izuku shook with the effort, his cunt fluttering wildly around the unmoving intrusion. He was so full, so desperately close.

Katsuki’s lips brushed his temple. “Now.”

He slammed up once, hard and deep, and Izuku shattered. A scream tore from his throat as his body convulsed, a hot gush of fluid soaking both their thighs and the rug beneath them. His vision went white, pleasure wiping out every thought.

Katsuki fucked him through it, his own control snapping. His hips jackhammered into the clenching, fluttering heat, his groans raw and guttural. “Take it, take it, my good boy, my perfect boy—”

He drove in one last time and stilled, a harsh shout muffled against Izuku’s neck. Izuku felt the hot pulse of his release, filling him up, claiming the emptiness Yo had left and every other hollow place inside him. Katsuki trembled, his big body going rigid before slumping heavily against Izuku’s back.

For a long moment, the only sounds were their heaving breaths and the slick, soft sound of Tesutesu still moving inside Eijiro with lazy, satisfied thrusts.

“Well,” Eijiro said softly, a warm, drowsy smile in his voice. “That was… a good check-up.”