(IMPORTANT ANNOUNCEMENT, PLEASE READ! I currently have a poll on my profile that lists the current AUs I plan on making. PLEASE vote on which one I should start next! Izuku X Fem Todoroki is currently winning with 2 votes at the time of posting this, so go and vote as well! Also, I will add to the list once I think up of more AUs [if you come up with an idea feel free to let me know, must involve Izuku and a female, or a genderbent female like fem Kirishima or whatever].

(So originally there was going to be a chapter before this. It was going to be about Bakugo's parents picking the lock to Izuku's apartment and demand/attempt to drag her away, but Izuku shows up and threatens them with the law and the use of his quirk Since they were technically villains, he was allowed to use it via his provisional license. But after discussing it with a friend on our discord, I decided just to write this chapter. IF enough people want I'll write the chapter I just told you about, but if not, I won't worry about it. After this chapter there will probably be 2, MAYBE 3 more chapters? Idk I haven't decided yet.

ALSO someone pointed out in a WeLl AcTuAlLy review that step siblings in a relationship is legal, so I'm saying fuck it, it's illegal in the MHA universe. Cool? Cool. Let the show commence.)

As the wind outside whipped around, freezing those unlucky enough to be caught out there, Katsumi balled up and snuggled the thick blanket that she found herself cocooned in. She breathed in deeply, shivering in delight at the wonderful smell. The blanket and pillow shared a minty and earthy scent, reminding her of the bed's owner.

She would've been snuggling with the man of her dreams, but the fucker left about 20 minutes ago for some reason. He didn't even give her a reason! Just a classic 'I'll be back' and whoosh, he was gone, leaving her alone with the bed to herself. She attempted to fall back asleep, but Deku had ruined any chance of going to sleep by herself for the rest of her life. Now she needed to sleep with him in order for herself to sleep. The nerd made her feel safe and chased away the nightmares that kept her awake every night.

The door to the room opened, and the light from the hallway assaulted her eyes. She grumbled and hissed, before dragging the blanket over her face.

"Kacchan? C'mon, it's time for presents." He whispered to her, gently shaking her awake as if she was still asleep.

"Fuck off." She hissed with no bite behind her words. She just wanted to pull him down into the bed with her so she could go back to sleep.

"Please Kacchan? We take a nap after we open the presents. Is that a deal?" He asked, causing her to grumble and lower the blanket, only allowing her eyes to be shown. She glared up at him for making such a tempting deal. The nerd smiled, warm and small, before reaching a hand out and pushing a strand of blond hair behind her ear. "There's my blond angel. Let's go, the sooner we're done and sooner we can come back here."

He left after that, not knowing how red her cheeks had gotten when he called her his 'angel'. The nerd had never called her such a thing before! Was it to fuck with her? Or did he genuinely mean?

It was too early for her sanity to start breaking.

With a grunt she got out of bed and stood up, immediately missing the warmth and smell of the bed and blanket, before opening Deku's draws and grabbing some clothing. Her new attire was dark green pajama pants and a black t-shirt for some heavy metal band Deku liked.

"Fuckin Christmas." She grumbled, scratching her head in irritation. She always hated the day, ever since those monsters first started abusing her. While kids were getting presents and spending time with their families, she got bruises, busted lips, and locked away in her room with nothing but a bottle of water and loaf of bread while the monsters ate like kings.

But…she wasn't with them now, she was here in Deku's house, with him and Auntie. She was safe, so maybe she could learn to love this day again?

She walked out of the room and down the hallway, and was hit with colorful lights and garland that was spread around the room, the sight of a tall and green Christmas tree in the corner brought back memories when those monsters weren't monsters, and how they'd bring her over here to spend the day and keep Auntie and Deku company since Uncle was still in the US.

Auntie was sitting on the couch with three cups of hot chocolate on the table in front of her, and Deku was on the floor putting their presents in specific piles. She had told Auntie she didn't need any presents, but the older woman insisted. She always made it her job to make Katsumi feel welcomed as if she was as a member of the family, with now more than ever with the truth finally out in the open.

"Good morning dear! Glad you could finally join us." Inko giggled, using her quirk to float a cup over to the blond, who accepted it gratefully.

"Morning Auntie, morning nerd." She greeted back, moving over and sitting across from Deku. The nerd was smiling big and bright this time, making her heart thud in her chest.

There were three piles of stacked presents: Auntie had three boxes, Deku had three boxes, and Katsumi herself had three boxes, a beige folder, and a manila envelope. What they held had her intrigued, and she assumed it might've been a poster or something.

"Morning Kacchan! Are you ready?" He asked, eagerly and excitedly. It made her…suspicious. Deku was always excited around Christmas time, but this eagerness was new. It couldn't be just because she was there with them, could it? No, the nerd was up to something. But what?

"As I'll ever be."

The heroes to be had the older woman open her presents first. One was from Uncle, which was a pair of green gloves that could amplify her quirk slightly, meaning she could use it on objects that were further away. The second gift was a glass vase with green and pink swirls as the colors, and was from, surprisingly in Katsumi's opinion, All Might himself (she found it ugly personally, but Auntie seemed to love it). The third and final gift was from her and Deku, and was a photo album of the three of them, with more than half being filled with pictures, and the rest being empty and used to future memories. The mother of one cried at them and hugged them (much to the blond's embarrassment).

Deku was next to open his presents. The first was from Katsumi herself, who had called in a favor to Best Jeanist and gotten the nerd a mint condition action figure of the hero, who ended up signing for her as a bonus.

The fucker had the audacity to say 'good luck with your man'. She'd kill him for sure! But the tease was worth it, seeing his face brighten up, and to have him basically tackle her into a hug. She smiled against his shoulder and hid her face to hide her stupid blush.

She chose to ignore the sound of a certain woman taking pictures.

The second gift was from All Might, which was an action figure of himself in his skeletal form, one arm and leg buffed up. It was modeled from the fight against All For One, and the former pro had insisted only a handful of these were made. Again, the nerd cried. The third and final gift was from Auntie, and it was a book filled with the autographs of different heroes, both old and new. Turns she had asked All Might for this as a favor, and the former hero delivered big time.

Sadly, in Katsumi's opinion, the mother-son duo hugged and cried for a solid 10 minutes. It was annoying, but heart warming seeing a real mother interact with her child. How Katsumi missed those days…

The blond shook her head, angry at herself for thinking of those monsters. She shouldn't be thinking about them, not when she had Auntie and Deku her, here true family.

Anyway, it was finally her turn to open her presents, with Deku insisting she opened the folder and envelope last (again, raising her suspicions). But she agreed nonetheless and started with a present from All Might, which turned out to be the exact figure Deku had gotten. She smiled to herself at the thoughtful present, and was more than ready to brag everyone the former (and best) number one hero had gotten her such an amazing gift. The second was a bunch of new shirts from Auntie, and each had different sayings that made her chuckle. One in particular she loved the most, and it said 'Fuck You, You Fucking Fuck'. The third gift was from Deku, and it was a few albums of a heavy metal band she was fond of. She was actually the reason Deku had gotten into listening to heavy metal in the first place

"Ok, I'm done with the boxes. What's in the folder and envelope that's got you all secretive and whatever?" She asked, eyes narrowing down at the greenette. She watched as his eyes traveled from hers to Aunties, and the two nodded at each other.

"Wow, look at the time! I almost forgot I promised Rei I would go see her in the hospital." Inko giggled, not completely lying. She did promise to visit the white-haired woman, but the initial plan was to visit around the afternoon, not now. But Izuku had been very adamant about wanting to be alone for the last two things he wanted to give Katsumi. "Behave you two! Don't get into too much trouble while I'm gone!" She playfully warned, putting on her jacket and hat before going out the door.

The blond didn't see how the older woman winked at her son, or the thumbs up she gave him. Or how her hand glowed green before finally leaving.

"I don't like secrets Deku. The hell is going on?"

"What do you mean? Can't I give my best friend two special gifts that'll make her happy?" He questioned, feigning innocence. A small, cocky smile was forming, and Katsumi was half tempted to smack it off.

"Just gimme the folder before I blow you up."

The greenette rolled his eyes playfully, before scooting over to sit beside her. He reached out and grabbed the folder before presenting it to her, which she snatched angrily. She did not trust him right now.

She opened the folder up, where two pieces of paper sat neatly aligned. The words ARREST WARRANT sat on top of each in big, bold letters. Her confusion was maxed out, but her eyes slowly began to widen as she began to read.

"This is…I don't…what?"

"These are copies of arrest warrants from my friend on the force." He informed casually. "Masaru and Mitsuki Bakugo were arrested this morning at six am. They're been arrested and will be charged with multiple accounts of child abuse, neglect, and a number of other things." He said, smiling. "I told you I'd get you away from them, didn't want?"

She felt her throat dry as a wave of emotions hit her, with shock and happiness being the main two. They were…gone, finally, finally gone! Child abuse was taken very seriously in Japan, which meant they'd get put away for a long time! She…she was free, she no longer had to fear what may happen as she slept, or fear the consequences of going back to that hell hole.

Wait…she no longer had to go back.

She couldn't go back. With her parents gone, the city would probably take away the hell hole, and sell it to someone else.

"Your gift was to get my parents locked up?!"

"Great gift, right? Not as great as the other one though." He said, grabbing the envelope.

"But-But what about me? I'll be put into some shitty orphanage!"

"Do you really have that little faith in me? You should know by now I always have a trick up my sleeve." He informed, passing her the envelope.

"Do you really want me to answer that?" She took the envelope and took a deep breath, still in shock over the first surprise. Her parents were gone now, never able to terrorize her ever again. She was free, finally free.

Folding the metal part at the top she opened the envelope, and saw a single paper inside. She gulped in worry before she slowly began to pull it out.

Her stomach dropped at the bolded words Certificate of Adoption sat atop of the paper. She cursed under her breath, unable to believe Auntie had ignored her and adopted her anyway. What about their talk?!

"Keep pulling it out." Izuku ordered, a large grin on his face. The blond huffed and did as told, pulling the paper out with one quick swish.

Her eyes scanned the paper, and she felt everything stop at her new name. Her chest tightened and breathing stopped, eyes wide in pure and utter shock. This had to be a fucking joke!

"Katsumi…Yagi?" She whispered out, unable to believe it. She was adopted…by All Might?!

"Yup, you're now legally the child of the former number one pro. How do you feel?"

"This…this is bullshit, right? There's no way this is real!"

It couldn't be real! This was some sort of sick dream she'd wake up from at any moment now, right?!

"It's real. All Might cares about you, and when I told him what was happening and what I was planning, he said he would gladly adopt you. And, well, he did."

"…Why?" She finally asked, too many other questions to voice. That one would do for now. "Why all of this, Deku? I don't understand."

"Well, I want to make you happy Kacchan. Sure being a hero has always been my goal in life, but it pales in comparison to giving you the life you deserve." Izuku cheeks turned pink at the confession, but his smile was bright nonetheless.

"You're such a sap." Bakugo grunted, looking away to he couldn't see her smile or the flush on her cheeks.

Izuku merely hummed in response, his eyes trailing up to the ceiling. He grinned as a certain green object hung from a wire.

"Huh, I wonder how that got up there?" He asked, feigning innocence. Bakugo, confused, followed his gaze and looked up, before her eyes widened at what he was talking about.

A mistletoe, which she was sure as fuckwas there before, now hung above their heads. Its green leaves and red berries stood out amongst the sea of white that was the ceiling.

Before the blond could blink, something warm was pressed against her cheek, causing her body to freeze and lock up, her mind suddenly going fuzzy at the feeling. When the thing was pulled away she looked down towards Izuku, who too was blushing bright red.

The fucker had kissed her…the fucker had kissed her!

Her mouth wobbled, a smile trying to form as she tried her best to fight it. Her fingers twitched, wanting to touch the spot where his lips were once pressed.

She wanted more, but didn't exactly know how to ask for it. So, she went for the next best thing.

"O-Oi! W-What kind of weak shit was that?! Kiss me on the lips like a real man!" She growled, her pride getting in the way of asking for it like a normal human being. If the nerd was going to kiss her under the stupid plant, then they were going to do it the right way!

"Like a man huh?" He grinned, accepting her challenge. He should've known her pride wouldn't just let her ask for an actual kiss. "You know, you could just ask for a kiss."

"…Fuck you."

A small laugh escaped the young hero before he leaned forward, grabbing and cradling her face between his scarred hands. He loved how red her face was right now, how quick and fast he could feel her pulse thump under his touch, under his gaze.

"You're beautiful when you blush." He told her, voice soft and warm, much like the look in his eyes. He stopped an inch away to tell her that.

"Shut up and just kiss me already!"

"As you wish, my Kacchan."

He did as told and went down, their lips finally meeting for their first ever kiss.

It was hard to describe it, how natural it felt for their lips to be pressed together, much like two pieces of a puzzle.

'So soft.' Was their shared thought.

Izuku felt something press against his chest, and was startled as he was pushed back, his own back thudding against the couch. Kacchan moved with him, never detaching from him, and slid into his lap, her legs firmly planting themselves on either side of his own.

Their hands began to roam along each other's bodies in their new position. Izuku's left arm wrapped around her waist, bringing the blond closer to him as his right hand traveled up, handing through the golden hair. He grabbed a handful and tugged, making the explosive girl before him moan into the kiss.

He was never going to get tired of that sound.

Her hands had similar ideas. Her left snaked its up way and grabbed onto his greenlocks, forcing him to stay where he was and make sure he couldn't pull away until she allowed him to. Her right snuck under his shirt, nails scratching and dragging down his toned chest and stomach, making the boy under her shiver in delight.

After what felt like eternity they finally pulled away, the need for air becoming to great. The two teens panted, hot breathing ghosting their faces as they stared at each other, each with a wild look in their eyes. Their cheeks were stained red.

The only sounds in the room were their pants and their wild, rapid heartbeats.

"I love you." He whispered breathlessly, stunning her. A warm, genuine smile graced her features as her heart fluttered.

"I love you too, dumbass." She said back, before freezing. Her cheeks turned redder as something began poking her ass. The greenettes cheek turned the same shade of red as hers.

"S-Sorry."

Her smile turned into a wicked grin, before she stood up and grabbed his hand, yanking him up to his feet.

"Let's go take care of that." She said, before dragging him away from the living room and to his bedroom.

"B-But I don't have any condoms!"

"I'm on the pill, dipshit." She informed, grin widening as she heard him hiss out a 'yes!' just as she kicked his door open.

(Hours later)

Inko brushed off the snow as she entered the apartment, before hanging up her jacket and taking off her boots. She looked around, noticing the teens were nowhere in sight. She tip-toed through the apartment and reached Izuku's bedroom door before slowly opening it.

She smiled at the sight, seeing her baby boy and his best friend snuggled under the covers, with the blond laying on top of him. They were both smiling in their sleep, no doubt dreaming of each other.

She closed the door and walked her room, deciding to question them about the funky smell that filled her sons' room.

She was happy for them, but that didn't mean she didn't love embarrassing them.

(2 chaps left to go, and the next one will be hella short. Tbh I might not do any lemons since they take me WAY longer to write and drain my desire to write, so yeah. Sorry about that but MAYBE I'll change my mind.

Also, how would you feel about Izuki getting shared? Lemme me know because I'm probably going to do it. It'll be in the last chapter and Katsumi will have her reasons.

ALSO also, don't forget to VOTE on my profile for the next AU!)