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Katsuki hates family gatherings. Particularly when it’s his family that they’re visiting. And especially now that he and Izuku were mated.
“C’mon, Kacchan! We’re going to be late!” Izuku whines, tugging on the alpha’s jacket as he slowly ambles down the sidewalk. “You know Auntie doesn’t like it when we’re late!”
“The old hag can stuff it,” he grunts, not allowing Izuku to make him walk any faster. “You know my thoughts on going to dinner with them.”
“I know, Kacchan, but just humor them for now. We can beg out of their dinners all we want once we get assigned and moved into our new home.”
Katsuki sighs and detaches Izuku from his jacket before pulling the omega to his side. “Fine. But you have to stay by my side the whole time. None of the whole ‘Oh, Katsuki, let me chat with Izuku alone! I just wanna catch up with him!’ bullshit she spouts.”
Izuku snuggles into Katsuki’s side. “Okay. I promise.”
“Good.”
Turning a corner, Katsuki’s house comes into view and it doesn’t take long for them to enter the gate and make it to the front door.
“Do we knock?”
“Screw that, Deku! This is my house! I’ll be damned if I’m knocking on my own front door!” Fishing his keys out of his pockets, he unlocks the door and steps inside.
“Pardon the intrusion,” Izuku says as he steps in and slips off his shoes.
“Katsuki? Is that you?”
“Yeah!”
Izuku watches as Katsuki stomps off into the house. Taking a deep breath, he quickly follows. “Hello Auntie Mitsuki, Uncle Masaru!” He chirps when he comes into sight of his mate’s parents.
“Izu-chan! Welcome to our lovely home! We’re glad you could come!” Mitsuki bustles forward and wraps Izuku up into a hug.
“Aha, thanks,” he laughs nervously, wiggling his way out of her grip and going over to stand next to Katsuki. Even though she’s Kacchan’s mom, I don’t like it when she touches me. As discreetly as he can, he rubs against Katsuki to try and get rid of the female alpha’s scent.
Katsuki chuckles and helps Izuku out without making it obvious to his sire that he’s getting rid of her stench on his mate. He doesn’t like it any more than I do. “What’s for dinner?”
“I made curry. And yes, I made some extra spicy for you.” Mitsuki purses her lips at her son before turning her attention back to Izuku. “I know your favorite food is katsudon, but I ran out of onions and somebody bought me the wrong kind.” She gives Masaru a teasing glance and snickers.
“I said I was sorry!” Masaru says, rolling his eyes. “Anyways, welcome, Izuku. Welcome, Katsuki. Dinner will be a while, so why don’t we sit in the living room?”
Nodding at the older omega, Izuku moves into the living room with a pouting Katsuki following. “How are you two doing now that Kacchan has moved into the dorms?” He asks once they’re all seated.
“We’ve been doing quite a bit of traveling,” Mitsuki says, reaching over and placing her hand on Masaru’s knee with a smile. “It’s been nice.”
“Yes, it has. And while we do miss you, Katsuki, we have really enjoyed our freedom.”
“Yeah, yeah.” Katsuki rolls his eyes. “Glad you’re enjoying yourselves though.”
Izuku smiles to himself while he looks at his mate. Kacchan really does miss and care for his parents, despite how he acts towards them.
“What about you, Izu-chan? How are you doing?” Mitsuki asks.
“I’m doing really great,” he replies, easily smiling. “Especially after bonding with Kacchan.”
“That’s wonderful. How’s Inko doing? I haven’t been able to get over to see her lately, with all the traveling and work that Masaru and I are doing.”
“She’s doing really well. She works at the local vet’s office as a receptionist to keep herself busy and she really enjoys it. I try to go home to see her as much as I can.”
“I’m glad she’s doing well, Izuku. We’ll have to invite her over sometime soon,” Masaru says quietly.
Mitsuki glances over at her son, surprised that he hasn’t said a word since they sat down. She finds him holding Izuku’s hand and looking at him with adoration. “You know, it came as a big surprise to know that Katsuki finally decided to take an omega for himself and bond with them. It came as an even bigger surprise to find out that said omega was male. And the biggest surprise of all was when we found out he decided to bond you,” she says, smiling softly at the newly-bonded pair.
“Yeah, well I’d only accept the best and strongest to become my omega, so why are you surprised?” Katsuki asks gruffly, not taking his eyes off his mate.
“How’s bonding going?” Masaru asks, smiling at how affectionate his son was being with Izuku.
“It’s going really well!” Izuku says brightly. “Of course, we both still have moments where we get really territorial if someone does something that triggers us, but we try to work through it.”
“Have you two figured out your triggers?”
Katsuki snorts. “Deku’s trigger is anyone shit-talking, threatening, or actually hurting me.”
“Kacchan’s triggers are when another alpha or beta touches me. I guess Auntie’s the exception because she’s his mom.”
“Damn straight I’m the exception!” Mitsuki exclaims.
“You’re not the exception, Hag! I just didn’t want to set Deku off by attacking you because you attack back!” Katsuki exclaims, gritting his teeth to keep from growling at his mother.
“Mitsuki, please respect their boundaries,” Masaru murmurs. “Remember what happened when we visited my parents right after we bonded?”
Mitsuki scowls and sits back with her arms across her chest. “I do.”
Izuku’s eyes widen. Is she...pouting? “U-uhm, anyways, our classmates and friends have been really supportive and we’ve even started our own pack.”
“That’s great! Who is your pack alpha?”
Katsuki puffs out his chest. “Me!”
“You?!” Mitsuki exclaims, losing her pout and sitting forward.
“Of course it’s me, Hag! Who else would it be?!” He explodes.
“I just thought you’d pick a teacher couple to be the head alpha and head omega, that’s all,” she replies, waving her hand around.
“Why would we need shitty teachers to be the head of our pack when we’re the best heads that could ever be?!”
“Calm down, Kacchan! You know that’s not what she meant!”
“Yeah, yeah. Anyways, we started our new pack with Deku and me being the head alpha and head omega. Shitty Hair, Tape Elbows, Pikachu, Mind Freak, Icy Hot, Round Cheeks, and Glasses are a part of our pack.”
“You realize that all those people have names, right?” Izuku asks, crossing his arms over his chest and fixing Katsuki with a deadpan look.
“I do. I just don’t bother to remember them.”
Izuku flicks him on the nose. “He means Kirishima, Sero, Kaminari, Shinsou, Todoroki, Uraraka, and Iida. Toogata-senpai and Amajiki-senpai might join as well.”
“Wow, quite the pack you have.” Masaru nods, feeling extremely proud of his son and his son’s mate. “I always knew my son would have what it takes to be a great alpha!”
As Katsuki goes to reply, a timer begins going off and Masaru stands up. “That means dinner is ready. Why don’t we all move to the table?”
Nodding, everyone quickly heads over and sits at the table. They continue talking more about different things. Once dinner is over, they head back out into the living room. Mitsuki and Masaru wash the dishes while they sit on the couch.
Katsuki notices Izuku fidgeting slightly. “Hey, you doin’ alright, Deku?”
“Just feeling a little antsy, Kacchan. As long as your mo-parents don’t do anything sudden, I should be okay.”
Pulling Izuku close to him, he sighs. “No promises that the Old Hag will behave. If it gets to be too much, just let me know and we’ll leave. I know being away from my scent gets to be a little unbearable after a while.”
Nuzzling into his alpha’s scent gland, Izuku relaxes and purrs. “Okay, Kacchan.”
“Aren’t you two so cute!” Mitsuki coos as she and Masaru walk into the room.
“Shut up, Hag!” Katsuki half-heartedly snarls, not wanting to upset Izuku. “Izuku isn’t feeling well and is on edge. Don’t do anything that would set him off!”
“Hope you feel better, Izuku,” Masaru says, feeling for the young omega. “I know it’s hard being anywhere but your room and nest after being newly mated.”
He smiles thinly. “Yeah. It’s bad enough that we have to go to school all day. Thankfully today we stayed in the nest until we had to come here.”
"Then we won't ask you to stay much longer. Maybe just until we have dessert?" Masaru asks.
"That sounds okay to me," Izuku answers, nuzzling Katsuki’s neck.
“Brat, come help me get dessert. Let’s leave our omegas to talk.”
“Hag, I can’t leave him alone right now!”
“It’s okay, Kacchan. I’ll be okay,” he soothes, lifting himself off of his mate and nudging him with a small smile.
Sighing heavily, Katsuki stands up from the couch and follows his sire into the kitchen. “There’s another reason you want me out here, isn’t there?”
“I’m here to quietly threaten you, Katsuki,” Mitsuki says in a serious voice. “You better take care of Izuku or I’ll beat your ass!”
“Of course I’m going to take care of him!” Katsuki hisses quietly, feeling slightly offended that his sire thinks he wouldn’t. “Why the hell wouldn’t I?”
“Because I know how you used to treat him! Look, Izuku has always been like a son to me and I bit my tongue at how you used to treat him because he forgave you. But now you hold so much power over him that you could force him to forgive you just by saying so. Don’t let the power you hold over him go to your head. Because if you do, I’ll knock you out myself and make the doctors break your bond!”
Katsuki sees Mitsuki in a new light. “Mom, I would never, ever, do anything like that to him now! I only did that before because I was a little shit who never got told otherwise. But I’ve learned. We’ve both grown together and figured out how to do this. So don’t worry.”
She graces her son with a rare smile. “That’s what I like to hear, Brat!” She slaps Katsuki over the head.
“Ow! Mom, stop!” Katsuki growls.
**********
Out in the living room, Masaru and Izuku are talking when a loud slapping sound fills the air right before Katsuki growls, “Ow! Mom, stop!”
Izuku freezes mid-sentence and his pupils shrink. He stares in the direction of the kitchen and mentally wars with himself not to go out there and kill his mate’s sire. However, he loses to his omega self. Masaru watches as Izuku silently, stealthily treads out to the kitchen with a sigh. Mitsuki, I told you to respect their boundaries. He follows Izuku, ready to tend to his mate if need be.
**********
Katsuki can sense Izuku before he realizes, just barely managing to grab the omega before he attacks Mitsuki. “Whoa! Deku, calm down!”
Izuku growls, baring his teeth at the offending alpha. “My mate! You hurt Mate!” He snarls.
Eyes widening, Mitsuki bares her neck and backs away. “Shit, sorry, Izu!”
Feeling himself begin to growl, Katsuki flips them so Izuku’s back is on the floor. “Calm down! I’m fine, Shitty Nerd!”
Izuku struggles, still desperately trying to go after Mitsuki. “She hurt Mate!”
“She did, but I’m fine now, see?” He leans forward and scents Izuku, knowing that it helps calm him down.
As Katsuki’s pheromones wash over him, Izuku begins scenting him back. He calms down enough that he isn’t snarling and growling. But if Mitsuki makes one wrong move, he’ll snap again. “Mate okay?”
“I’m okay. C’mon, let’s go up to my room. Hag, call the school and tell them that it’s your fault that we’re not coming back tonight.”
“Yeah, I’ll do that.” Mitsuki’s voice comes out shaky as she watches Katsuki pick up Izuku and make his way up to his childhood room.
“Mitsuki, I told you to respect their boundaries. They’re newly mated, so you shouldn’t be surprised that you almost got attacked.” Masaru shakes his head from where he stands in the doorway to the kitchen.
“Hold me, Masaru. I’m scarred for life now.”
Rolling his eyes, he allows Mitsuki to drag him into the living room.
**********
Kicking his bedroom door closed behind him, Katsuki sets Izuku down and watches as he takes a moment to inhale deeply. “Calming down, Nerd?”
Izuku’s eyes snap open and his sharp gaze rests on the blond. “Kacchan, get on the bed.”
“Excuse me, you little shit?! Don’t tell me what to do!”
With unsurprising strength, Izuku throws Katsuki on the bed and pins him down. Leaning down, Izuku bites Katsuki’s scent gland, making him melt into the bed with a groan. Once he feels satisfied with the bite, he pulls away and starts rigorously scenting Katsuki. The alpha responds and scents Izuku back. Feeling confident that everyone would be able to smell his claim on the alpha, Izuku sets to work weaving the blankets and pillows around the still blissed out alpha. Then, he curls up and starts purring as Katsuki wraps his arms around him.
“I’m hella pissed at you for biting me, you shitty omega,” Katsuki slurs, nosing around Izuku’s scent glands. “That and scenting me like that. I’m the alpha; I scent you.”
“Sorry, Kacchan.”
“Yeah, yeah, whatever. It was hella hot to see you go feral for me. I appreciate it, Izuku.”
“Anything for you, Kacchan.”
Katsuki begins crooning, soothing the omega into becoming drowsy. “Just go to sleep, Deku. We’ll head back to school tomorrow morning.” The croon continues.
“Love you, Kacchan.”
“Love you too.”