Warnings for The Black Sleeve Debate Kirishima × Male Reader:

Miscarriages mentioned

Fluff

Cursing

Dirty jokes

Your story started way before you were even born. Your parents were middle class but quickly fell into poverty due to wanting children. Your parents tried everything to have children, but your father and mother both had very low success rates if they were to try. No IVF or hormone therapy worked, and after going through inheritances and even getting loans for treatments, nothing worked. Your mother suffered ten miscarriages and both your parents had to get part-time jobs as janitors to pay off the loans.

After seven years of trying, they gave up trying, but six months later, your mother got pregnant with you. It was a hard pregnancy, and she was told you were deformed. But your mother didn't care she wanted you and was willing to put her life at risk to have you.

When you were born, you were born with dragon wings. They disappeared as soon as you were born, but the dragon scales on your back stayed. They were so happy to have you and loved you even with your weird quirk. You sneezed fire, which caught several clothes and different materials on fire. Your wings would also pop out at random times ripping your baby clothes apart.

Your father decided to go back to college to help find you something to wear that would not only prevent your clothes from catching on fire but also get ripped when your wings popped out. Two years later, your twin brother and sister were born. Your brother was an ice dragon while your sister was like an angel and had metal wings that were soft to the touch. After four years of struggling financially and everything else, your father landed a job in costume designing and engineering.

Your parents lived rather modestly due to the debt they got, but they loved you with everything they had. They never compared you three and treated you equally. They bought you three of the same things so you wouldn't fight. They put you in the best schools they could, and they tried to help you three learn to fly even though they didn't have Quirks. They made the house a safe space to try new things, and even if you were horrific at something they would try to cheer you up and always tell you that no one can be good at everything but if you try you can do it to the best of your abilities. If you struggled with anything, they tried to help you solve your problems with talks or just flat out, not saying anything and just listening to your problems.

They did that with all three of you and went to every event they could. When you were five, your mother started to make cheap clothes for children with quirks. She made them on demand, and you even helped. She always told you that she was doing this so parents would stop wasting their money on clothes that would get destroyed by kids' quirks like yours did. When the business took off, your parents became wealthy, but that didn't stop them from showing how much they loved you and your brother and sister.

No amount of money changed them, and your rich father still had his car that he took all three of you home in. Your parents told you it was a reminder of where he came from, and he wouldn't trade it for the world because he got the three of you. Your father became the lead engineer and designer for the school Izuku went to, and now you go with your brother and sister. You were eighteen and bright.

You had dragon powers, but you wanted to be like your parents who tried to make people hate each other less because they were slightly different. You were a hero but also a designer yourself while your brother and sister were more hero-like. Your sister was named Angel but got he hero named Valkery due to her angel wings and her massive sword. She had full body armor and could even summon a hammer. She was incredibly strong and was very kind and gentle to everyone except her enemies. Her weakness was extremely cold and heat.

Your brother Artic, also known as Ace, for his deadly accuracy, could turn into an ice dragon. He was strong too and could freeze anything he touched and also freeze with his breath. His weakness was heat, and during the summer, he would randomly pass out because he overheated. While you were the exact opposite. You had all his powers, but during winter, you would pass out because it would be too cold for you. You three balanced each other well and got along much better than when you were kids.

You three cheered each other on and fought together all the time. You three did everything together, including clothes shopping with your sister. You liked it because you three would wear the same clothes.

"Coming in hot!" You yelled as your sister lifted her hand in the air, and you grabbed her and then threw her hard.

"Hundred sword army!" Your sister yelled as she summoned a hundred swords and sent them down on the monsters below.

"Hey, big brother, a building with people is about to collapse!" Artic yelled.

"Got it! Give me the address!" You yelled.

"I'm heading your way!" Angel yelled.

"I'll lead the way. Let's go!" Artic said as you three started to fly to the building. You got under it while Stella put her hands on the building and started flying hard to straighten it out.

"More!" Artic said.

"Got it!" Angel said as she started flying harder.

"I got it!" You said as you were now a pillar for part of the building.

"Got it! Angel floor.... several, ten-eleven, fifteen, and twenty-five have people on it. Can you get them?!" Artic asked.

"Will do, just say clear when I cleared it out the level I'm on!"She said as she broke a window.

"Another great day here," you chuckled.

"At least it's not on your birthday! Big one, niner!" Artic laughed in his dragon form.

"True. But you know what would be better?" You asked.

"What?" He asked.

"If stuff like this stopped. Sure, we would be out of the job, but think about how peaceful it would be," you said as you shrank a bit.

"Angel, hurry! Y/n's dragon form is fading!" Artic yelled.

"Did I get everyone out of ten?" She asked.

"Clear!" He said as you shrank more.

"What are you two doing? Kirishima asked.

"There are people in here! I need metal, I Gan weld some pieces together before I turn back into a human," you said as your brother started making an ice pillar to support his side.

"Got it. I'm going to get some!" He said as your sister was hurrying and trying to get people out.

The building was hit, and another part of the building was hit, making one of the other corners give out.

"Angel!" You yelled. As your sister quickly took the corner and held it up.

"Hi! I didn't clear out the top floor yet. Am I missing anyone?" She asked as Artic, and you used your heat-sensing eyes to scan the building.

"Just the people on the top floor, it looks like," you and Artic said at the same time.

"Jinx!"

"Double jinx!"

"Tripple jinx!" You both said, making you both laugh.

"Aww, I want to be part of the jinx too," Angel smiled.

"Hey, you are already part of the little acorn club," Artic smiled.

"Right, I forgot about the little Acorn club we made when I was nine," you chuckled.

"Little acorn club?" Angel asked.

"Yeah, remember when I said technically, if you have a son, you grow a pair of balls and since at the time me and Y/ns balls were the size of acorns; I called it the little acorn club," Artic said.

"Oh! That club, I completely forgot about that club! How could I forget that? Our dad was so confused," she laughed as Kirishima and some other heroes had metal for you to weld together.

You started to weld it together, and Artic started to cool it down slowly.

"Top floor boys!" Your sister said as you turned back to normal. Artic turned back as well, leaving your sister the same size as before.

"We got you!" You said as you went over to her and held up the corner with her.

"Aww, thanks, guys! We should have a game night with the entire class of 1a," she suggested.

"That sounds fun," Artic said.

"Clear!" Kirishima said as you three looked at each other.

"Back out on three?" Angel asked.

"Sure," you said as she smiled.

"One," you said.

"Two," Artic said.

"Three!" Angel said as she let go and grabbed the both of you, then flew backward.

The building started to fall, and you three cheered as all the people were out.

"Nice job!" Kirishima said.

"You came right when we needed you. Nice work!" You said as you were shot in the back.

"Ow!" You said as it burned a hole in your suit. Luckily, your scales deflected it.

"You did not just hit my brother!" Your sister growled her blue and red eyes turned back, and so did her armor.

Your sister quickly went to the monster and started beating the absolute hell out of it and was throwing it around like it was nothing.

"My brothers are defenseless! If you want to bully someone, then bully me! I am going to put you in the fucking ground!!" She screamed as she was making a creature with the monster as you three watched.

"I'll put a dildo so far up your fucking ass it comes out of your mouth! I'll fuck you up like a horny wild animal! I have no dick but my eick is bigger than yours will ever be!" She screamed.

"Should we stop her?" Artic asked as she took out a monster seven times her size with the smaller monster she had in her hands.

"No, I... I don't actually know," you said as Izuku took you the final monster.

"Your sister is scary," Kirishima said as she calmed down.

"Nah, she's not scary, just very strong-willed. I'm going to see if I need to help rescue teams," you said as you left.

"We won!" Angel smiled as she came back covered in monster blood.

"Yeah, we did, so are we still going to go through the surprise birthday party for Y/n?" Artic asked.

"Yeah, so I will ask him to put black sleeves on my suit even though I already had them once, and I kept tearing through them. I just have to convince him to put them on. He will be building prototypes for days!" Kirishima chuckled.

"Great! We need to make sure he has no idea, so everyone has to put in a weird request for him to do. He will get annoyed, but we have never thrown him a party because he always finds out," Artic said.

"Don't worry, he won't find out. We have to keep him busy for only five days. How hard can that be?" Kirishima asked as your brother and sister looked at him.

"He's smarter than the average bear," Angel said as she looked over at you.

You were holding up a map and pointing to various locations while explaining your plan.

"Hey! If any heroes are still here, can you bring them over to Seattle Street and the corner of Madison? A mile of buildings were destroyed. I did an estimate!" You hollered.

"We will! I will do pick-ups!" Angel smiled as she took off.

"Ace, you go with team b since you also have heat vision, and we are going to the more heavily destroyed areas," you said.

"Got it!" Artic said as your sister was dropping off heroes at the corner.