Majority Rules [Bakugatsu Day 3]

Warning: Polyamory

Katsuki glanced up when he heard the familiar footsteps, watching a smile spread across his boyfriend's face. He hated admitting even to himself how cute the nerd really was, with his freckled cheeks and blinding smile, the way his huge eyes crinkled at the corners when he was happy. 

“Kacchan!”

He fell into Katsuki's lap, hesitation long since forgotten in the years they'd been together, and Katsuki scoffed quietly, bringing his hands to the nerd's hips to steady him. Calloused hands reached for him, cradling his face, and Katsuki let his eyes sink closed as their lips met. Izuku was always so gentle with him, always so kind and sweet and loving with his touch, and over time, Katsuki had grown to accept it. More than accept it, in fact. He longed for it when they were apart, yearned for his sweet laughter and even sweeter caresses, the way he treated Katsuki's body as if it were made of gold.

“Someone wants attention tonight, huh?” he smirked, relishing the touch of Izuku's desperate kisses.

He jolted when he felt the hand on his neck, tearing their lips apart, but Izuku only grinned, holding firmer at his face to keep him from turning to investigate. Izuku kissed him again, trying to distract him, but it was too late for that shit – His damn boyfriends had been plotting and he intended to find out what the hell was going on.

“Hold still, Katsuki,” Shouto murmured in his ear. “Be good for us.”

“Did the nerd put you up to this shit?” he growled.

“Don't be silly, Kacchan!” Izuku giggled, kissing his forehead instead when the lips stubbornly rejected him. “We had the idea together!”

He finally managed to pry his head away, looking back just in time to see Shouto fasten a buckle, reaching stubbornly for his neck to investigate.

Fucking collar.

He jerked forward, head whipping back to see Izuku tugging on a leash, hastily clipped over his throat. He growled again, hating himself for letting them distract him, but then Izuku was pulling again, dragging him off the couch, and he stumbled to his feet.

“Yes, Kacchan,” he grinned, winding the leash around his hand firmly. “Someone is gonna get lots of attention tonight.”

“Listen here you little shit-”

“Can I gag him?” Shouto asked flatly, fingers curling over Katsuki's mouth and jaw. “He's not gonna let up.”

“No, he'll be good. Won't you, Kacchan? Gonna be so good for me and Shouto.”

Katsuki glared, but his mouth was held shut by the warm grip, unable to say a word.

“I don't hear a no,” Izuku teased. “Come on, Kacchan, time for bed!”

At the end of the hall was the largest of their bedrooms. Izuku's room, really, though he would argue if either of them said it. He was a cuddler, always wanted to be snuggled with one of them at night, while Katsuki and Shouto needed their space sometimes. It had been a pretty simple solution, really. Izuku had the biggest room, the massive, super comfy bed, while Shouto and Katsuki each had a little room of their own. The size of a closet, frankly, with a little single bed in each, but it was all they needed when they wanted privacy.

“Good boy, Kacchan!” Izuku praised, when he got the man over the threshold. “Now take your clothes off for us, nice and slow.”

“Make me.”

“You heard him, Shouto.”

A blazing hot hand slid around his waist, and Katsuki tensed up as it went for his fly. The hand paused, and with a mumbled apology it left, a soothingly cool hand taking it's place. Katsuki sighed, relaxing a little, and Izuku giggled as he stepped in to plant another kiss on Katsuki's lips.

“You're so cute, Kacchan.”

“Shut up.”

“Nuh-uh, that's not very nice, is that how we should talk to our masters?”

“Fuck off.”

Izuku ran his hand through blonde spikes, taking hold and tilting the head back with a surprising gentleness.

“If you want to stop, say the word.”

“I know the fucking rule, asshole, don't do this shit.”

“Then take your clothes off, Kacchan.”

“Seems like fuckin' halfie is doing an okay job of it.”

Izuku held a little tighter, wrenching the head back further, forcing stubborn red eyes to meet his. Katsuki hissed, reaching for Izuku's wrist, but Shouto clamped it down in a hurry.

“Try again, Kacchan.”

“Fuck you.”

“Not tonight,” Shouto snorted, dragging Katsuki's boxers down to his ankles, tossing them aside with his pants. “Tonight you're gonna behave.”

“Keep telling yourself that, asshole.”

He gasped when the hand struck him, hot and heavy against the cheek of his ass, barely choking back a little moan. Izuku caught it, smirking, watching as Katsuki's face flooded red under his grip.

“Want to try again, Kacchan?”

“Fuck off.”

“If you ask nicely, I'll spank you again,” Shouto informed him, so damn matter-of-fact about it. “But only if you say please.”

“Why would I want that?” he asked through gritted teeth, completely unconvincing. “Fuck you.”

“If you ask nicely, we'll keep going,” Shouto tried again, pressing his heated hand to Katsuki's other soft cheek. “If you swear, we'll leave.”

Katsuki gritted his teeth, torn, flushing again when Izuku giggled at him.

“Say it, Kacchan.”

“Ugh.”

For a moment his world stood still, Shouto's hand lingering on his thigh, Izuku's fingers tangled in his hair, his breath caught in this chest.

“Don't stop,” he whispered, mentally kicking himself. “Keep going. Um, please?”

“Good boy!” Izuku cooed, planting kisses along his jaw. “You're so sexy when you're polite, Kacchan.”

“Shut up.”

“Aw, don't go ruining it now!”

Shouto slipped his hands under Katsuki's shirt, slowly dragging it up over his tight abs, his tiny waist, his strong chest. As the shirt went over his head Izuku took a step backward, maneuvering it over the leash to cast it aside, taking a moment to run his eyes up and down Katsuki's perfect body. 

“You're so gorgeous, Kacchan,” he murmured. “We're so lucky.”

He slowly moved backwards, dragging Katsuki with him, smiling all the way. Katsuki didn't understand it – that smile never wavered, no matter what. He was too damn happy.

“You're gonna blow me, Kacchan,” he said firmly, the smile still firmly in place. “And Shouto is gonna fuck you while you do!”

He wanted to protest, wanted to argue, but his lips betrayed him. Instead he found himself nodding, swallowing hard, letting Izuku pull him onto the bed. He reached for Izuku's fly, glaring at the little giggle it elicited, but continued to fumble the jeans off and throw them away. 

Katsuki jumped when he felt the cold hand on his ass, swiping fluid between his cheeks, but Izuku distracted him quickly, pulling him in for another demanding kiss. He thrust his tongue between soft lips, relishing the little moan Katsuki lost. Shouto lubed up his hand, giving Izuku a warning glance before he slipped it inside.

Katsuki flinched, and Izuku bit at his lower lip, dragging his attention back in. It would be over soon, they both knew, but Izuku was always determined to keep him happy in the meantime. 

Izuku rose up on his knees when Shouto nodded, nudging Katsuki's head down, and with glazed eyes he opened his mouth, tongue darting out to lick at Izuku's shaft. Izuku moaned, and Katsuki took it as encouragement, leaning in to suck at his swollen head eagerly. Shouto lined himself up, exchanging another quick glance with Izuku before he began to shift his hips, filling Katsuki up. 

“Feels good,” Izuku gasped, when Katsuki moaned around him. “Keep going, Kacchan.”

He fumbled to find the leash again, tugging at it demandingly, and Katsuki obeyed. He sank in closer, swallowing around Izuku's cock, eyes darting up to see the blissful expression on Izuku's face.

“Go, Shouto.”

Katsuki's eyebrows knitted together, confused for a brief moment before Shouto began to move, thrusting hard and fast. He almost yelped when he felt himself shift, Shouto's pace controlling his own, but when the thick cock hit the back of his throat it turned into a long, low moan. Izuku's free hand tangled in his hair, his head thrown back as he breathed hard and fast, and Katsuki couldn't take his eyes off it. He kept his mouth open, his eyes locked on Izuku's sweaty face and chest, and let Shouto pound into him just the way he wanted.

“Good boy,” Shouto murmured, running his hand down Katsuki's spine. “Take it like a good little bitch.”

As much as he wanted to argue or bite back, Katsuki found himself moaning again. He couldn't seem to keep a thought in his head for more than a second, too full of the brutal beating of his throat, the slapping of his thighs and hips, the crude sound of skin against skin aided by sloppy lube.

Izuku filled him up first, spurting down his throat, but even when Katsuki tried to swallow he found it spilling down his chin, overflowing between his lips. There was too much, coming out far too fast, and with Shouto still controlling his movements he couldn't find a moment to stop and swallow it down.

With a breathless laugh Izuku slipped himself aside, planting a kiss on Katsuki's head, and lay down beside him on the bed. Before he could think to question it, Izuku was reaching beneath him, wrapping a hand around Katsuki's neglected cock. He groaned with the relief it brought, trying his best to scowl when Izuku laughed at him again, attention once again diverted in a heartbeat as his hand began to move. 

With a few firm strokes, Katsuki came, spilling his load all over the sheets. His walls clenched around Shouto, and with a little huff Shouto's pace changed, shuddering as he shot his load. 

Katsuki's limbs faltered, and immediately four hands were grabbing him, gently rolling him onto his back to rest. Izuku still wore his same bright smile, but he finally unclipped the leash, setting it aside as Katsuki's head rested in his lap. Shouto lay down beside them, draping an arm lightly over Katsuki's body, and Izuku hummed contentedly as he leaned in to kiss each of them in turn.

“My best boys,” he smiled. “I love you both so much.”

Katsuki finally found the strength to raise an arm, thumping his fist into Shouto's shoulder stubbornly.

“What happened to the condom, asshole?”

“You said it was okay occasionally.”

“You gotta clean me out, bitch.”

“Shower or tongue?”

The room fell silent for a moment, then Katsuki barked out a single choked laugh.

“I'd fuckin' love to say yes, but I really don't think I can take any more tonight.”

“Aww, poor Kacchan is worn out?” Izuku teased. “You'll just have to watch while Shouto and I keep going.”

“Yeah fuckin' right.”

“Mm, I'll settle for snuggles,” Izuku grinned. “Acceptable?”

“Fine.”

He slid a pillow into his place, cradling Katsuki's head, and slid down the mattress until he could cuddle into a warm, sweaty side. In a pile of lube and sweat and cum, the three curled into a pile, Katsuki grumbling half-heartedly beneath his boyfriends. 

“I'll take this off,” Shouto conceded, reaching for his neck. “Turn your head.”

“Leave it,” Katsuki objected, burning red. “It's fine.”

“Okay,” Shouto smirked, kissing his cheek fondly. “You owe me ten bucks, Izuku.”

“Haah?”

“I didn't think you'd like it,” Izuku laughed. “I was wrong!”

“Fuckin' betting on our sex life?”

“You know it!”

He huffed, and immediately both figures snuggled in closer, nuzzling either side of his neck fondly.

“I love you, Kacchan.”

“Love you, Katsuki.”

“Fuckin' whatever,” Katsuki grumbled, letting his eyes finally fall closed. “Love you assholes too.”