Chapter Text
“Nice to meet you, Eijirou-san and Katsuki-san. I’m Professor Midorya, your daughter’s homeroom teacher, and I would just like to discuss a few things about the dormitory arrangement of your daughter at UA.” An angel with green fluffy hair stood at the doorway of the Eijirou household. The man, Professor Midorya, was wearing a black suit and brown leather shoes paired with a leather briefcase.
Eijirou stood there, in his lounge clothes as he had just gotten off his shift, and Katsuki was wearing an apron, holding a spatula in one hand. The Beta Omega pair looked at each other, then back at the Alpha in front of them, flashing them a beaming smile.
The pair took a while just taking in the beauty before them when a bored voice spoke behind the angel, “Eijirou, Katsuki.” Aizawa peeked behind the angel, “The fuck are you doing here, old man?” Sighing, “I am still your daughter’s professor, Katsuki.”
“You cut your hair!” Eijirou gasped, pointing a finger right at Aizawa’s face. Sighing loudly, Aizawa slapped the hand away from his face, “Yes, I did. Good one, Kirishima Ejiro.” Rolling his eyes at the man’s antics.
“Hey! That’s kinda mean.” Pouting, Eijirou rubbed his arm.
“Will you let us in now?” Aizawa replied in a bored tone.
“Oh, shoot, sorry, sensei, uhm..Come in, come in.” Eijirou said, pushing his husband to start moving.
“Ojama Shimasu,” Izuku murmured as he entered the home.
“Let me just turn off the stove. Have you guys eaten yet?” Katsuki asked, going inside the house.
“Oh wow! That smells amazing, Mr.Kirishima! Your husband seems like a great cook!” Professor Midorya beamed.
“He absolutely is! Have you both eaten yet? Would you like to have lunch with us?” Eijirou asked, smiling fondly at the redhead.
“Yes! We have already eaten, thank you.” The angel, Midorya, replied. Katsuki stared while Eijirou smiled back at the beauty, watching his old sensei and the young professor take off their shoes at their genkan
.Elbowing his husband, “Look!” Eijirou whispered, and Katsuki looked at the professor preparing to enter their home. “Red riot and DynaMight socks, huh?” he said, smirking back at his ecstatic husband.
Their little exchange was not as quiet as the two supposed, as the professors were now staring at them, elbowing each other and raising their eyebrows.
Clearing his throat, “We’re here to discuss something regarding Mizuku. Is it okay if she’s present during this discussion?” Professor Midorya asked, smiling fondly at the couple.
“Oh! I’m so sorry, absolutely!” Eijirou replied, turning to his husband,
“Call Mizu, please.” Smiling sheepishly at his husband.
“What the fuck, why me?” Katsuki whisper-yelled
“Come on! I called her earlier for breakfast its your turn to call her down!” Eijirou argued.
Huffing, Katsuki walked further inside the house.
The inside of the house was neat– it almost looked like a model home. The living room had cream-colored walls, a green accent wall adorned with family pictures, medals, certificates of all kinds, and a console table holding candles and a bowl for their keys. Their furniture complemented the room's neutral colors, with cream couches and loveseats, and hardwood coffee and side tables. It also looked like someone adored flowers, as every corner of the house had potted plants and every table had a vase of either stargazer lilies or a plethora of carnations and baby's breath.
“Mizuki! Come down, you brat! You didn’t tell us your professors were coming!” Katsuki shouted at the bottom of the stairs. “Shit!” a faint voice shouted, then a thump. Eijirou smiled sheepishly at the professors while leading them to the living room, “Sorry, that’s her. She’s coming down in a bit.”
Loud steps sounded through the house as their daughter, Mizuki Kirishima, barreled down the stairs. “Sensei!” She greeted, bowing down while breathing heavily.
“Shit, I’m so sorry I completely forgot!” The young girl apologized, “Language.” Both Eijirou and Aizawa shook their heads, “Katsuki’s daughter, sorry.” Eijirou said, scratching the back of his neck.
“Figured,” Aizawa replied gruffly and motioned Midorya to sit down on one of the living room chairs.
They gathered in the living room. Eijirou is sitting on the left side of the couch, Katsuki on the right, and Mizuki in between the two.
Clearing his throat, “So, just like both of you experienced, Mizuki will be required to stay at the dorms for the entirety of her stay at UA. I feel like I don’t really need to explain further since you both know these already.” Aizawa stated. Staring at his old students. The couple nodded in understanding.
“Oh, Eijirou-san and Katsuki-san, you both attended UA?” Midorya curiously asked. “That’s Red Riot and DynaMight, Midorya,” Aizawa answered, sounding bored.
“OH, MY GOD!” The alpha gasped, jumping a bit in his seat, “Mizuki! Sensei! You didn’t tell me anything? OH my gosh, I’m sitting in THE beta omega pro hero couple’s living room. Holy, I can’t believe this, I thought Red Riot was still patrolling! This is so exciting!” Moving around in his seat, Midorya gushed about the couple in front of him.
Letting out a belly laugh, Eijirou threw his head back while Katsuki just grinned at the blushing man.
“This is so embarrassing, oh my…” Midorya exasperated, covering his face with his hands.
“Wait…How do you know Eijirou’s shift schedule?” Katsuki asked, raising an eyebrow.
“Hold on! I’m not a creep, I swear! I’m just a really big fan, and I follow multiple fan bases on Twitter, and I was just waiting for clips, just in case you know, one of you gets into a villain fight, because sometimes I just like seeing you guys fight and stuff, and oh my gosh, I’m so so embarrassed right now. Mizuki, why didn’t you tell me anything? Oh my gosh, I am so sorry. This is literally so not professional of me.” Midorya explained, moving his hands as he tried to make himself understood, growing redder by the second.
“Midorya-san, sir, that’s the exact reason why I didn’t tell you. The amount of my dads’ hero merch you have as socks has never gone unnoticed. Just like the mismatched ones you are wearing right now.” His student replied, sighing, feigning exasperation.
“Jesus Christ…” Midorya mumbled, still hiding behind his hands.
“Cute,” Eijirou whispered. Mizuki’s head shot up to look at his father, then back to her other father, both staring at the excited Alpha. “Oooohhh…” The young girl says, smirking at her blonde dad.
“Shut up, brat.” Giggling, the young girl elbowed her father and whispered, ”I approve.” Winking, she looked back at her professors and saw the younger professor try to hide his Red Riot and DynaMight socks.
“I’m so sorry, I swear I am more professional than this. I’m really sorry. It’s just that I’ve been a fan all my life, and I even watched you guys from the sidelines during your sports festival at UA. Although I also went to UA, I was just 3 or 4 years younger than you guys, but you know I was just such a HUGE fan, and I went to UA because of you guys, and Oh my gosh I will shut up now.” Midorya babbled on as the couple only shared knowing glances with each other.
Despite wearing blockers, the air was slowly filling with distressed Alpha pheromones. Sensing the Alpha’s distress, Katsuki leaned forward and released some of his own calming ones, trying to soothe the panicking Alpha in front of him. “It’s alright, Midorya-san. We love meeting fans.” Eijirou smiled softly at the Alpha.
Inhaling deeply, the Alpha seemed to calm down enough to stop rambling, “Thanks, Katsuki-san, Eijirou-san. I’m really sorry, I just ramble a lot.” He smiled shyly.
The alpha was just oh-so-cute. A perfect addition. Katsuki thought. Realizing this, he looked towards Eijirou, who seemed like he had thought of the same thing from the fond smile he was giving the alpha.
“It’s alright, sensei, can we sign the forms now? When will Mizuki have to move in so we can get prepared?” Eijirou said, leaning forward to reach for the paper Aizawa had placed on the coffee table.
“She can move in by next week, the earliest would be this Wednesday. That was written in the form that I had given her about a month ago. Were you not able to receive the form?” Midorya replied, eyebrows furrowing in confusion. As he hands over a pen to the beta.
Katsuki’s head snapped towards his daughter, and in a low voice said, “Mizuki…I swear to god.” hitting the back of his daughter’s head.
“My bad, Dad. I’m sorry…” Mizuki apologized, smiling sheepishly at her father while rubbing the back of her head.
“I’ll go look for the form now, excuse me,” Mizuki said, standing up and heading upstairs.
“I apologize for my daughter’s irresponsibility; that’s entirely on me. We run Katsuki dry sometimes.” Eijirou says, smiling apologetically at the professors.
“S’fine. She’s literally both of you mixed in one. Kind of expected, honestly.” Aizawa replied, rolling his eyes again.
“Hey! What’s that supposed to mean?” Eijirou protested, pouting, “Black hair, red eyes, short-tempered, kind of an airhead sometimes, gym girl, obsessed with clean food, oh, and her constant fighting with her male classmates while screaming ‘That’s so-not manly.’” Aizawa states, shutting the redhead up.
Katsuki snorted, “Hey! She’s half y-” Eijirou’s protests were cut off when Aizawa’s phone rang. “Excuse me,” the professor said, standing up and heading outside.
Leaving the couple alone with the fine specimen of an alpha in their living room. The couple glanced at each other, eyes signaling to make the first move.
Although Katsuki and Eijirou are already bonded, they have always felt like something or someone was missing in their dynamic. They absolutely adored each other; that’s never going to change, but there has always been a part of their relationship that just felt incomplete. They had talked so much about this feeling– even to Mizuki, that maybe, someday, they’ll find their third, and that day might just be today.
“Uh…Midorya-san?” Eijirou nervously called. Seeing his husband’s reluctance,
“So…Midorya-san, are you single?” Katsuki asked, smirking.
“That’s highly inappropriate, Mr. Kirishima,” Midorya replied, his ears turning red.
“Sorry, Sensei,” Eijirou replied, smiling deviously at the alpha. “Apologies for my husband; he can be very forward sometimes.”
Standing up, Katsuki plopped himself right next to the blushing alpha. “Ne, Sensei, you never answered my question…” Katsuki whispered right into the alpha’s ear while slowly releasing sweet pheromones.
Katsuki’s pointer finger was now trailing along Midorya’s arm. The alpha looked down at the blonde, eyes widening at the blatant flirting in front of his husband and mate.
“W-wait, Mr. Kirishima, I- Your husband is right there. I-I’m so sorry.”Midorya panicked, moving his arm away from the omega.
“It’s alright, alpha,” Eijirou replied, smiling at the alpha, who was now frozen in place as Eijirou released some of his own inviting pheromones while maintaining eye contact with Midorya.
The alpha, taking a deep breath as he takes in the pheromones he was being given. A sweet, almost banana-like mixed with yuzu citrus scent hit his sensitive nose as the pair watched him like hawks. Feeling the blatant display of interest, Midorya pulled his necktie down a bit, exposing his scent gland slightly.
Feeling the alpha next to him melt, Katsuki took that as a chance and reached forward to remove the Alpha’s scent patch from his gland and walked back towards his husband, handing him the patch.
Midorya’s posture changed; the professional air he had been trying to uphold for the past 15 minutes disappeared. He leaned back, relaxed, his big green eyes now hooded, staring at the couple before him.
“Well…Are you single, Sensei?” Eijirou asked, his hand placed on his omega’s thigh, near the blonde’s sex.
“Depends on whose asking.” He replied, eyes darkening as he watched the pair’s breathing grow heavy, shifting in their seats, the couple staring in shock at the sudden change in atmosphere.
“Us. We’re asking.” Eijirou replied, his voice going deep as his mouth dried from the dominance radiating off the alpha.
An even sweeter scent filled the air, making Midorya breathe deeply, “How inappropriate, Katsuki-san.” Midorya teasingly said, smirking and eyes going even darker if that was even possible.
“Fuck.” Katsuki cursed, smelling his own arousal. He suddenly stood up, hurriedly walking to the other side of the room to turn on the scent neutralizer.
Watching Katsuki scramble, the alpha stalked Katsuki’s figure like prey. Katsuki fumbled with the intensity of the centralized neutralizer across the room.
“What’s so embarrassing about your arousal, Kirishima-san ~” Midorya whispered right against Katsuki’s ear, nipping it slightly.
With his guard down, Midorya took advantage of this and placed his hands on the omega’s waist, fingers almost touching. He whispered, “You greedy little omega. You were supposed to wait for my answer first before acting like a needy bitch.” Smirking, Midorya nipped the tip of Katsuki’s ear again, making his knees buckle, letting out a quiet whimper. Katsuki did not dare turn around.
Hearing no protests from the omega, Midorya let his hands travel down to Katsuki’s ass. Squeezing, which earned him another whimper from the omega. Going down further, he let his pointer finger slightly dip into the omega’s heat, feeling the wetness through the black joggers Katsuki was wearing.
Midorya smirked, “Already so wet for me, Kacchan? How obscene.” Insert something about mocking tone. Hearing this, Katsuki tried to push the man away, but he was just so much bigger than him.
“Be good.” The alpha demanded, gripping Katsuki’s neck, firmly holding him, keeping him flushed against the wall. “What kind of a number one hero are you, DynaMight. Just letting a random alpha have his way…Allowing a random alpha bitch you.” Midorya spat, licking a stripe at the back of Katsuki’s ear.
Feeling insulted, Katsuki let out a small blast from his palm. Still, he moaned. “What a bad boy.” The alpha mocked, pulling back from the omega, retreating.
Katsuki slid down the wall, knees giving up as he tried to catch his breath. “What the fuck.” He whispered.
Pulling his necktie down further, Midorya walked back into the living room. The alpha stalked towards the beta, who stayed frozen on the couch, watching his omega get played by the gigantic alpha. Not sure if he was jealous of the alpha or his omega, still, Eijirou kept his eyes locked on Midorya.
As he got closer, Midorya placed his hand under the beta’s jaw, firmly grasping the beta’s jaw. He let his thumb wander on Eijirou’s bottom lip.
“What a pretty beta. So defenseless, are you both really heroes if you’re surrendering to an alpha this easily? Letting me touch you all over like this with no protests…Funny to think I was just a mumbling mess for you both earlier…” His hand finds Eijirou’s cheek, lightly slapping it.
Not breaking eye contact, Midorya continued moving his hand, playing with the tips of Eijirou’s ear, slapping his cheek, and even sticking his thumb inside the beta’s mouth, making him suck. “What a pretty red,” Midorya whispered, tonguing the shell of Eijirou’s ear slightly while the man let out a breathy moan under him.
“YEAH FOUND IT!” Mizuki’s voice cut through the sexual tension as she cheered.
Midorya released his hold on Eijirou’s jaw, pulling his thumb out of the heaving beta and walking back to his seat. Katsuki, finally regaining his strength back stood up and walked back to the couch, still breathing heavily as he tried to gather himself. Eijirou just sat there, in a daze, hungry eyes meeting Midorya’s mischievous-filled ones.
The couple both looked hungry. Their cheeks were beet red, the tips of their ears hot.
Smiling at the pair, Midorya fixed his tie, reached for his briefcase, and placed on a fresh scent patch as he sat properly, putting on a professional face again, just in time. Mizuki rushed downstairs again, too young to notice the shift in the atmosphere.
“Here, dads. Sign here, please!” The young girl said, handing her parents a crumpled piece of paper and a pen. The couple took turns signing the documents handed to them under the Alpha’s careful eyes.
Once completed, the couple handed the documents back to the alpha. Finger tips touching, Midorya stared at the couple back and forth.
“Alright! That’s about it, Eijirou-san and Katsuki-san. Thank you so much for trusting Aizawa sensei and me with your daughter's safety. I’ll see you both soon.” Midorya says, back to the professional tone he had used to greet the couple earlier.
“Yeah, thanks, whatever,” Katsuki says with a shaky voice, trying to play cool. “Thank you, please do contact us whenever, Midorya-san,” Kirishima replied, recovering better than his partner.
“You’re finished?” Aizawa said, walking back into the living room, “Yes, Aizawa-san. We were just saying our goodbyes.” Midorya said, gathering his belongings as well as the papers. He walked towards the couple, dodging the two and ruffling the young girl’s hair.
“See you in class, Mizuki.”
“Thank you so much, sensei! Take care!” Mizuku smiled, bouncing on the balls of her feet as she bowed to her senseis.
“Eijirou, Bakugou, thanks. We’ll head out now.”
“We’ll see you out,” Kirishima nods, standing up from the couch.
The alpha stayed back, waiting for the pair to come closer to him, looking around to see if Mizuki and his co-professor were watching. Once the coast was clear, he grabbed a handful of both the beta’s and the omega’s ass before walking away. Leaving the couple stunned, blushing, and staring at each other.
Snapping out of the blushing mess that they are, the couple stood at the last step before the genkan when Aizawa head outside with a babbling Mizuki and, ushering them both to come closer, Midorya ripped Eijirou’s patches; they released pheromones earlier, pulling the beta down slightly to meet his awaiting lips. He sucked a small, red mark on the beta’s neck, right on the gland.
Eijirou gasped, hand traveling up to hold on to Midorya’s suit as he trembled, pawing at the alpha’s chest, knees buckling, his half-mast was now fully hard and dripping.
Smirking against Eijirou’s skin, the alpha gently let his fangs trail up and down the beta’s neck, teasing the man. The beta whimpered when Midorya moved away, wishing to get more from the alpha.
Katsuki just watched, distracted; he didn’t see the alpha reaching for his scent patch, letting the alpha’s tongue wander on his gland on top of Eijirou’s mark, and slightly grazing his fangs on it while Katsuki’s hand gripped his suit’s lapel to get the alpha to come closer to him.
The alpha pulled back, gently reapplying the scent patched back on both their necks, and the pair fell into a daze. Katsuki was biting his lip while looking at the alpha with so much hunger like a slut that has not been knotted for days, and Eijirou was panting, cupping his hard on through his sweats.
“I’m expecting you both soon.” The alpha says, smirking as he walks out the door. Leaving the pair standing before the genkan, turned on and were excited for the future.
Before the door closed, Mizuki skipped back inside the home, “Wooohooo? Dad? Papa? Huy!” The young girl waved her hand in front of her fathers’ faces unsuccessfully snapping them out of their trance.
Smiling deviously, Mizuki pulled both her arms back and then slapped her parents as hard as she could.
“FUCKING SHIT!”
“WHAT THE FUCK, MIZUKI!”
The couple screamed, running after their giggling child. “OOGLE AT MY PROFESSOR SOME OTHER TIME!” Still laughing, the teenager ran circles around the house as her fathers try to catch her.