Fantasy barbarian king Bakugou traveling to the canon universe with his alpha dragon hybrid Kirishima because why have just one Kirishima when he can steal more from other worlds and have a whole haram of Kirishimas.

(Ooo boy here we go)
Dragon hybrid Kirishima is huge too, thick and muscular. Red scales on his cheekbones, hips and hands. He wears a collar with a long thin gold chain that is attacked to Bakugou's wrist because they're soul bonded and he belongs to him.

They live and die together, scars mirror themselves in both bodies because if one gets hurt the other does too.

Bakugou's Sorceress servant created a portal for them to travel to and they land in front of a strange building that has "1A" written on it.

"The other you should be here." Bakugou said nodding towards the building "if not I'll have that sorceress's head"

Bakugou leads the way, Kirishima close behind, and throws the doors open so aggressively they nearly break off their hinges.

((Ok ok fuck. Fantasy Baku and Kiri are like 25, cw: nsfw age gap, dub con, selfcest, alpha stuff aka knots, attempted kidnapping... Happy ending...))

Class 1A looks at the doorway confused as Bakugou walks confidently inside, his red cap flowing behind him.

"I'm looking for this world's Eijiro Kirishima" he announces, scanning the sea of younger off brand versions of his court "I am king Katsuki Bakugou, Eijiro is mine by right no matter what world he comes from and I am here to claim him"

The king's eyes meet identical ones

Amongst the extras and naturally a young Eijiro is sitting beside him.

"There you are. Hurry up let's go" Bakugou beckons the stunned boy to him "/come here/"

The command has no effect on this version of Eijiro and Bakugou clicks his tongue in annoyance.

"Holy crap Bakugou that's old you!" Kaminari shouts, pointing a finger at the king.

"And that's... Kirishima???" A pink girl gasps, eyes as big as dinner plates.

The children began furiously chatting amongst each other, but made no move to hand over Kirishima.

The king was losing his patience.

"I don't envy you, other me, you have no respect here" Bakugou grumbled, approaching the young Kirishima and quickly throwing him over his shoulder. "Now I'm taking what's mine."

"Hey!" Kirishima yelped, mind finally catching up to the situation.

There was a flash of light as Midoriya shot forwards, spinning to kick king Bakugou. At the same time canon Bakugou lunged forwards, palms crackling with explosions.

Dragon Kirishima moved in an instant

His huge body and wings wrapping around the king to defend him from the attacks. With a roar, he forced them back and they fell to the floor.

King Bakugou smirked, causing a struggling Kirishima to his counterpart "hold him, his magic makes his skin sharp you're better suited +

To handle him."

He knocked cradling Kirishima in his large arms, pumping out a soothing scent.

"W-what?" Kirishima breathed as the alpha scent engulfed him. It made his brain feel fuzzy, his eyelids heavy, and his limbs feel like lead.

"Oh so /that/ works?" The king growled

He tapped an amulet around his necks and it began to glow.

"Oi, round cheeks, we got him. Bring us back."

The rest of the children lunged at them, but they weren't fast enough to do anything before a bubbled engulfed them.

"No!" Young Bakugou yelled as they disappeared.

((Oops I said "attempted" kidnapping... They give him back don't worry))

When canon Kirishima wakes up he's laying on a pile of soft furs, pressed between two warm bodies. He groans and shifts, but the muscular arms around his waist pull him closer.

His head still feels a little fuzzy, the huge person who's arms are wrapped around him and the person behind him smelled amazing, like fire and outdoors.

"Where am I?" Kirishima tries to pull away again.

"Sleep, small mate, it's too early to wake." Bakugou's voice purred

Kirishima craned his neck "b-Bakugou?" He squeaked "You're here too? What happened everything's fuzzy"

"Relax, mate, you're home with us"

Us?

A low rumbling sound came from the person in front of him that was oddly soothing. Kirishima's eyes fluttered shut and he drifted off.

(Ok to avoid confusion, I'm gonna call canon Kiri Kirishima or Kiri, and the fantasy Kiri Eijiro or ei)

When Kirishima woke up again he was alone and his head was clear. He sat up and rubbed his head. The memories slowly started to come back, he was taken by another Bakugou...

"Ah good, you're awake" Bakugou said, coming back into the tent with a plate stacked high with meat and sitting next to him "Here. Eat."

"I'm oka-mmph"

Bakugou shoved a chunk of meat into Kirishima's mouth, cutting him off.

"Eat." He commanded again, watching intently as

Kirishima struggled to chew the large portion of steak, hot juices spilling past his lips and down his chin. He swallowed and gasped.

Bakugou shoved his fingers in Kirishima's mouth and pried his jaw open.

"You have dragon teeth but you are human" the king mumbled

Running his thumb over the points of Kirishima's teeth "do you have other dragon features? Strip."

"W-what?" Kirishima blushed as Bakugou grabbed the front of his shirt and tore it open "whoa bro slow down!"

Kirishima had a huge crush on his version of Bakugou, and this

Version was even more attractive. Muscles more defined and accentuated by tribal tattoos and glittering jewelry. This Bakugou was so touchy and affectionate, stroking his cheeks and smiling at him, feeding him. It made him feel warm.

"Little mate" Bakugou cooed

"I wish to see you, but I won't push you."

Kirishima blushed and stood, shrugging his ruined shirt off his shoulders and fumbled with his belt.

"I-it's ok..." Kirishima mumbled "you've seen me in the locker room before, this isn't so different"

Bakugou hummed and watched closely. Kirishima squirmed under his intense gaze, his face redder than his hair cursing himself as he felt himself getting hard. Kiri's hands were sweating and he struggled with the button on his shorts.

"Do you need help?"

"It's ok, I-I got it"

Kirishima's voice cracked and Bakugou offered a reassuring smirk.

"I am not forcing you, little one."

"'M not little..."

Bakugou laughed and scooted closer, resting his hands on Kirishima's hips. The king's face being that close to his crotch was /not/ helping him relax.

"You are little to me" Bakugou said, pressing his lips next to Kirishima's belly button "You are little but you are still my mate"

Bakugou's words made Kirishima shudder as the king hooked his fingers in his waistband and worked his pants off and boxers off.

Kirishima's erection sprung free, slapping Bakugou's cheek. The king wrapped his hand around the base and squeezed.

"Ba-bakugou..."

"You will refer to me as 'mate' or 'my king'" Bakugou stated looking Kirishima in the eyes before looking back down "hmm, you dont have a knot..."

"A what?"

"Shush, don't burden yourself with it, you'll see later" Bakugou murmured stroking his length slowly from base to tip and Kirishima gasped, clenching his hands into fists "so sensitive, little mate, I'm excited to play with you"

"Oh shit" Kirishima whimpered as Bakugou's teased his slit with his tongue "oh my god"

"My king" Bakugou corrected, circling his tongue around his cockhead.

"M-my king" Kirishima parroted, biting his lip hard as Bakugou suckled on his leaking tip. "Oh fuck"

Bakugou was stroking him so slowly, but the feel of his hot wet tongue around him had his toes curling. Kirishima had never been kissed before, this was overwhelming.

Suddenly Bakugou pulled him closer, swallowing around him until his nose was pressed against his dark pubes.

Kirishima came with a shout, spilling into the king's throat. Bakugou held him there until he was done, easing him out of his throat slowly and sucking on the over sensitive tip until he whined.

"Very sensitive" Bakugou sounded breathless as he liked his lips "You did so well"

Kirishima whimpered, looking at Bakugou with lustful eyes, his cock still hard and twitching in time with his racing heart.

"Turn" Bakugou instructed and Kirishima's body moved before he could think "good, little mate, you're being so good for me."

Kirishima felt drunk on praise writhing as he felt Bakugou knead his ass cheeks and spread them open. He could feel Bakugou's hot breath against his hole and shifted uncomfortably.

"/stay/" the tone of Bakugou's voice made him freeze immediately, a needy whine rising from him.

Bakugou's tongue licked a stripe over his hole, wet and slick. Kirishima felt like the wind got punched out of him as he moaned loudly, hips pushing back against his tongue. Bakugou's hold on his hips tighten, holding him in places as he teased his hole like he did with his cock.

"Fuck please" Kirishima mewled, unsure of what exactly he was asking for.

"Greedy little mate" Bakugou purred, moving one hand down to fondle his balls as he licked him against. "You'll take what you are given"

"Bakugou~" he whined.

The hand touching his balls disappeared and came down hard on his ass cheeks. A loud slap echoed through the tent and pain bloomed underneath the king's hand. Kiri yelped, his hips jerking away from the sudden pain. Kiri looked over his shoulder, eye wide

"I will not correct you a third time, little mate" Bakugou growled "misspeak again and there will be punishment, understand?"

Kirishima swallowed thickly and nodded. Bakugou raised an eyebrow and he quickly added "m-my king"

Bakugou hummed and pressed his tongue against the tight ring of muscle, adding a slight amount of pressure until it dipped inside. Kirishima's body tensed against the intrusion and Bakugou's hand came down on his cheek against, not as hard as the first time but enough to sting.

"/relax/" the king commanded, pressing his tongue in and out of his hole.

It was strange but it felt good. Soon Kirishima was a panting, drooling mess, whimpering as he pushed against Bakugou's tongue. He need more, wanted it deeper.

"My king" he cried "please"

The currain opened and a huge person stepped inside. The small space filled again with the scent of fire and nature that made Kirishima's head spin.

"Eijiro stop sending so hard" Bakugou ordered, pulling away from Kirishima ass.

Kirishima whined at the loss of stimulation,

Too drunk on arousal and the calming scent to be worried about who had come in.

"Little me" a low voice rumbled as Eijiro approached, taking Kirishima's head in his clawed hands and tilting it up to face him. "You tease him Katsuki"

"Only because it's easy" the king replied

Sinking his teeth into the hand print he left on Kiri's ass, the pain helped clear his head a little bit. "He doesn't have a knot"

Eijiro frown, looking deep into Kirishima's eyes with a burning stare "Omega?"

"Human."

"Hm, a shame."

"He is sensitive like an omega"

"What are you talking about?" Kirishima asked, shying away from Eijiro's gaze to look at Bakugou.

"Don't burden yourself with it" Eijiro rumbled, making a low purr that helped Kirishima relax.

"Katsuki wishes to mate with you" the dragon hybrid continued, massaging Kirishima's chest with his big hands "despite his demeanor he is an attentive lover, you're very fortunate. /We/ are very fortunate"

Kirishima blushed all the way down his chest. "What? He want... He..."

The heavy scent filled the room but Kirishima forced his brain to focus "stop... that... I-I haven't even told my Bakugou that I like him yet!"

The scent became softer and Bakugou barked a single laugh "he didn't cook you first? then your Bakugou is a fool. His loss is my gain."

Kirishima's heart skipped a beat.

"I will make you a man, little mate, and then I will parade you in front of your Bakugou so he will know the mistake he's made. In a battle like this the one who strikes first wins."

"If you give us permission to do so" Eijiro added

What teenage boy would pass up an offer to lose his virginity to the hot version of his crush and a muscle giant version of himself?

"H-hell yeah" Kirishima replied, less confidently than he meant to be.

"Good boy" Bakugou praised, pressing his tongue back into him.

Kirishima moaned, supporting himself against Eijiro's chest as Bakugou ate him out more aggressively than before. Eijiro watched hungrily, running his claws up and down Kirishima's back.

"/Give him more/" Eijiro instructed "oil is behind you."

"Don't command me" he hissed,

But reached back and coated three fingers in the oil before pressing one against Kirishima's stretched hole. It slipped in easily, Kiri dug his fingers into Eijiro's skin as Bakugou pushed all the way to the knuckle. Bakugou pulled back and added a second, pushing deep inside.

"My king! /fuck/" Kirishima gasped Bakugou's fingers thrusting in and out of him roughly, scissoring him open.

"Does it feel good?" Eijiro asked, stroking his own cock as he watched his mates fingers disappearing into Kirishima "do you want more?"

"Yes! Please more please!"

Eijiro grabbed Kirishima's chin with his free and and jerked him into a brusing kiss, sharp teeth clacking together as Kiri gasped in surprise. Eijiro got closer, grabbing Kirishima's length and pressing it against his own. Kiri's eyes snapped wide and he glanced down to see.

Eijiro was a monster. His cock at least twice as long as his own with a strange small bulge swelling at the base. It was shaped differently too, the tip was more pointed and there were several scaly ridges along the it's length. No wonder Bakugou kept calling him little.

"You're staring little one" Eijiro growled, a smirk tugging at the corners of his lips.

Kirishima looked away immediately, his face hot, and the dragon chuckled as he stroked them together. Kiri moaned loudly at all the sensations as Bakugou added a third finger.

Kiri rocked his hips, pushing back on the king's fingers and then forwards in to Eijiro's hand. It was too much, he could feel another orgasm coming. He couldn't stop his movements, moving faster, pushing himself closer to the edge.

"That's it, little mate, make yourself cum"

Bakugou encouraged, changing the angle of his fingers slightly every time Kirishima rocked back "so good, you can do it"

"I'm good! Good for you my king!" Kiri whimpered, speeding up "'M gonna cum for you"

Then Bakugou's fingers hit something inside him that made him scream

His eyes rolled back as he body came to an abrupt stop, his muscles clamping down around the king's fingers as he came into his double's hand. The others took over moving, Eijiro stroking him through his orgasm as Bakugou hit that spot again and again and again.

Kiri's body felt like it was on fire as Bakugou relentlessly attacked his over sensitive prostate. It was starting to hurt, but there was an almost uncomfortable pleasure that kept Kiri from squirming too far away.

"Cum again" Bakugou said firmly, a command not a question "cum"

The king didn't stop until Kiri cried out, another burst of intense pleasure radiating through out his entire body. Nothing came out of him, he had nothing left to give. His legs turning to Jello as Bakugou slipped out of him, leaving him feeling empty. Eijiro held him up +

Messaging little circles in his back as Bakugou began to clean him. Kirishima was the only one who had come.

"Good job, little mate, you did so good. Perfect little mate" Bakugou coped pressing a kiss on the small of kiri's back before Eijiro laid him down on the soft furs.

"Rest for now, we have a long day when the sun rises tomorrow"

Kirishima had a vivid dream. He was back at UA in the classroom and they were picking hero names again, but it was just him and Bakugou.

"King explosion murder"

Kiri laughed but then Bakugou was in front of him in hero costume, grabbing his chin roughly.

"I am your king"

Bakugou shoved his fingers into his mouth, the digits weighing heavily on his tongue.

"I am your king" he repeated

"Baw-goo-go" Kirishima protested, words slurred around the fingers in his mouth

"If you had said something we could've been doing this together this whole time"

Bakugou hissed, grabbing kiri's balls "but instead you went and for yourself kidnapped"

Kiri squirmed and whined as Bakugou massaged him, moaning lewdly in his ear. He took his fingers out of kiri's mouth, wiping the spit against his cheek.

"My king" he whimpered

"Wake up, little mate"

Kirishima woke with a start, struggling against the arms wrapped around him. A hand squeezed his nuts and he yelped, but stopped squirming.

"You sleep like the dead" the king breathed nipping at the shell of his ear "You were aroused in your sleep,

Did you dream of me?"

"Y-yes" it wasn't exactly a lie.

"Mmm good" Bakugou purred, humping against him "good little mate, you're mine even in your dreams"

Bakugou's erection slid between Kirishima's ass cheeks as he continued to fondle him, his other hand tracing down his body in tickling touches. Kirishima gasped and moaned, pushing back against king.

"Eager aren't we?" Bakugou teased, pressing a kiss behind his ear

"Do you think you can take me?"

Kirishima's cock twitched "/please/"

"Good mate"

Kirishima was shoved onto his stomach and Bakugou straddled his thighs, spreading his cheeks. Cool oil dripped against his hole and the two fingers pressed inside. Kiri cursed as a third finger

Pressed in thrusting a few times to slick his insides.

"You ready to become a man, little mate?" Bakugou asked, removing his fingers.

Kiri's heart was racing from excitement and nerves. He was going to lose his virginity to his crush... Or a version of his crush.

"Please" Kiri said again, wiggling his hips.

"Please what? You must use your words, little mate." Bakugou's said, the head of his cock teasing kiri's entrance "You want to become a man? Want me to claim you?"

"Oh fuck yes" Kiri moaned, rutting against the furs beneath him

A hand came down hard on his ass, stilling his movements.

"/words/" Bakugou hissed "or you will get nothing"

Kirishima cursed again "Please my king" he whimpered "make me a man! Claim me!"

"As you wish"

Bakugou pressed against him until the tip slipped inside.

Kirishima moaned as he stretched around Bakugou's length, it was much bigger than his fingers. It burned but wasn't unbearable so he pushed back.

"Shh, little mate, relax" Bakugou whispered, bending down to sloppily kiss his shoulders and neck "/relax/"

Kirishima took a deep shaky breath and forced himself to relax. Bakugou slid in inch by inch until he bottomed out, the king's whole body weighed him down.

"So tight" Bakugou moaned, biting down on his shoulder and sucking.

"So big" kiri gasped, as he adjusted to the stretch.

"I will try to be gentle because Eijiro will not be" the King said, rolling his hips gently

Kirishima hid his face in the furs, muffling his own moans and Bakugou set a slow pace.

"M-more" he gasped "my king, please, faster!"

"You will take what you are given" Bakugou hissed, pulling out to just the time before he snapped his hips forwards, skin hitting skin with a loud slap.

Kirishima cried out, pushing his hips back but Bakugou had stopped moving completely.

"Maybe I'll just use you like this"

Bakugou nipped kiri's earlobe, grabbing his hips in a vise like grip "maybe I'll just use you like a cock warmer, there are other Kirishima's I can fuck"

Kirishima whimpered, struggling under the bigger man "fuck p-please... Wanna cum"

"You will cum when I let you"

"Katsuki, be nice." Eijiro low voice rumbled as the dragon hybrid entered the tent.

Bakugou growled "shitty dragon, ruining my fun."

The blond sat up and manhandled Kirishima into his hand and knees, muttering something about punishment.

"Prepare yourself" he grunted

Bakugou grabbed Kiri's hips and began to fuck him brutally, nails digging into his skin as he jerked his body to meet his with every thrust. Kiri screamed, tears collecting at the corners of he eyes as he was overwhelmed with the sensation.

"Touch yourself" Bakugou commanded

Changing angle so that he slammed against Kiri's prostate.

He pressed his face against the ground and grabbed his leaking cock, doing his best to stroke himself in time with Bakugou hips.

"M gonna cum" Kiri slurred, drool leaking out of his mouth

"You cum when you're told"

"/Katsuki/" Eijiro said disapprovingly, shuffling over to them on his knees.

He lifted Kirishima's head until it was level with his erection, the slightly pointed tip brushed against the his lips. Kiri had to let go of himself so he didn't fall over, edging himself.

His eyes blew wide and he looked up at his counterpart.

"Go on little one" Eijiro's voice was soft and kind even as he rubbed pre over kiri's lips.

Kiri tried to swallow the lump in his throat as he opened his mouth, tongue darting out to lick experimentally.

"You'll have to open wider than that" Eijiro chuckled, hooking his thumb in kiri's jaw and prying his mouth wider. "Stick your tongue out. Just like that. Perfect little one."

Kirishima whimpered as Eijiro rubbed against his tongue before sliding the tip into his mouth.

Bakugou's rough thrusts pushed Kirishima further into Eijiro's length as he struggled to fit it in his mouth, his jaw opened uncomfortably wide to to try and accommodate. Eijiro fed him his cock slowly, less than half went in by the time the head hit the back of kiri's throat.

Kiri gagged and Eijiro pulled back slightly, shushing him and petting his hair. A calming scent filled the air as Eijiro hit the back again.

"You're coddling him" Bakugou grunted "he's /you/, he can handling more than you're giving"

The king put his hand on the back of

Kiri's head and pushed him down on Eijiro's cock. Kiri choked as the head was forced into his throat, tears flowing down his cheeks. Eijiro growled, claws digging painfully into the sides of Kiri's face holding him in place.

"It was more for my sake than his" Eijiro groaned

Kiri couldn't breathe, and even though Eijiro wasn't thrusting deeper into his throat he wasn't pulling back either. The dragon hybrid was shallow breaths, his scent shifting from calming to desire and arousal.

Bakugou pulled on Kirishima's hips moving him back just enough for

He to gasp before another thrust forced him back down.

"You're showing an awful lot of restraint for a dragon" the king smirked as he resumed fucking Kirishima "We didn't travel to a new world and back to show restraint, Eijiro"

Eijiro laughed, carding his fingers through Kirishima's hair as he bobbed up and down on his length.

"We traveled to another world because you are selfish brat, Katsuki... We gotta switch or I'm gonna lose it."

"Fuck fine, let me finish up really quick" Bakugou grunted

Grabbing a fist full of red hair and jerking Kirishima up until his back touched the king's chest "suck him Ei, he won't last long"

Eijiro hummed and got down in front if Kirishima, carefully covering his sharp teeth before sucking hard on the tip. Kirishima came immediately

Mouth open in a silent scream, his head falling back onto Bakugou's shoulder.

"/Tight/" Katsuki groaned, biting down hard on Kirishima's neck and buring deep inside him as he painted his insides white. "My mate"

Eijiro released Kirishima and sat up, wrapping his arms around

Both of them, nuzzling his cheek against Bakugou's. Kirishima felt like jello sandwiched between the two muscular bodies, cum leaking down his thighs as he struggled to keep his eyes open.

"Wow" Kiri breathed, wincing as Bakugou pulled out "that was amazing"

"Was?" Bakugou laughed "we're not done yet, little one"

Kirishima whimpered, his cock twitching in interest as he was manhandled onto his back with Eijiro between his legs. The dragon hybrid massaged kiri's thigh with one hand and stroked his own length slowly with the other

As he stared his counterpart with hungry eyes.

Bakugou's hand wrapped around kiri's throat, his thumb brushing over his Adam's apple.

"I will try to be gentle" Eijiro said reassuringly

"A lie." Bakugou smirked, brushing his cock against kiri's cheek "he's gonna ruin you"