AN: For this prompt, I wanted to go with a rematch that didn't involve an in-canon type of fight scenario.

(Even tho I'd LOVE to see one, in their second-year.)

Continuing the childhood friends to lover's trope in this.

Happy reading~ :D

Day Three: Rematch

XxxxxxxxxxxxxxxxxxxxxxxxxxxX

They both know it's that time of the year again.

Ever since they were little kids, Katsuki and Ochako have had a competitive streak.

And it wasn't always friendly.

Each dare started to become more and more demanding as they got older.

It all started when they were five and six-years-old, at that same beach that their parents would take them during summer vacations. It was located on a middle ground between the country and city limits.

A fearless six-year-old Katsuki had started their game of dares when he picked up a sand crab without a care. Liking how the tiny crab would burrow its body deeper into the pile of wet brown sand in his cupped palms – it tickled. Katsuki dared her to touch one and when she refused to, he scooped a small mound of sand and dumped it in her lap. She screamed and slapped her hands on her lap causing her quirk to activate, making her float as the sand fell off her sandy shorts.

He laughed and said she was being silly for being afraid of a sand crab of all things. They didn't even have pinchers! Ochako growing flustered by the second, released her quirk and stomped her way to get her pink pail and bucket set.

"I'll prove you wrong, Kacchan!" she declares, filtering through mounds of sand to collect the tiny creatures that lurked in the shallows.

"I'd like to see you try, Chubby Cheeks!" he heartily yells back, a distance away in his own side of the beach to collect sand crabs. He hadn't told her what they were competing for yet as he doesn't know himself but it was nice to see her overcome her fears one step at a time.

From then on, they make a silent pact to dare each other during every vacation and holiday spent together. Ochako would never admit that these small objectives were helping her immensely to get over her silly fears over the little things and try new things just as Katsuki would never admit to choosing most of these dares in order to help her out.

It started off with innocently collecting sand crabs to daring each other to eat weird concoction of foods or truthfully answer a question if one of them couldn't stomach the food. From there, it only grew worse as they got older to getting kicked out of movie theaters for being too loud or sneaking off into the woods late at night to jump into a frozen lake together. The either or of each dare option had been just as daring as its first choice option.

Ochako always kept her dares tame, wanting to do something wholesome and good rather than something gross or something that'd get them in 'serious' trouble.

Katsuki always kept his dares wildly unpredictable, never involving anyone else but wanting to see how far he could push her buttons.

The only extreme thing that Ochako had ever done to him was one time their families were vacationing together on a camping trip and her fourteen-year-old self had snuck out of her shared tent with her parents. Trying to keep her giggles to a minimum, she used her quirk to pull at Katsuki's inflatable bed from his own tent. He refused to share with his overly 'touchy' parents who'd just smother him in his sleep. She gently pushed his sleeping form right into the same cold lake they had jumped into just last year.

In the morning, she knew he was awake when she heard a string of curses being yelled at the top of his lungs. Flailing his arms around, he was screaming bloody murder as he lost his balance and fell into the chilled water.

Ochako doubled-over in laughter as she patiently waited for him to swim back to shore. Waiting for him with an orange towel in hand. He glared daggers into her between blond bangs from his dripping spikes and vows that he'd get his rightful rematch once he thinks of something clever.

His rematch doesn't happen until the following year, a sixteen-year-old Katsuki has a pink strawberry pocky stick between his lips, lightly biting down onto the biscuit stick, knowing she likes the sweet fragrant frosting more than he does.

They've always been together, never needing to verbally declare what they've feel for each other. But altogether, they've never delved further into their budding relationship. It's in the beginning of that blossoming relationship that they play the pocky game for the very first time.

Katsuki dares her to take a bite, seeing who'll last longer as they both sit cross-legged from each other on a wide couch in the common area of their school dormitory.

Ochako would much rather have accepted a challenge of video games or a board game or a pie eating contest, etc; basically anything that didn't involve putting her on the spot really. She knows that she loves him and he loves her but it was still scary to see their relationship further progress into more.

He of course doesn't pressure her into playing but if she chickens out then he has a spicy ramen challenge with her name on it. She's about to step down and take on his heat challenge instead when her heart tugs at her to go on. Finish what they started playing because her mind is curious – she wants to know what his lips feel like. He had kissed her only once when they were little kids at the beach under a setting sun of their youth as fireworks painted their vibrant colors in the night sky but… she vaguely remembers that time.

Now she's older and can actually recall things, embed memories deep within her, linger on every word spoken. She wants this and whether it was an equivalent rematch to the time she threw his inflatable bed in the lake during a camping trip or not – she wants this.

Closing her eyes, she begins nibbling on her end of the pocky stick as he does the same. Her face tingles with the sensation of having him this close to her, body heat radiating from both of them. She feels an electric shock travel down her spine when soft lips meet her own.

He feels completely different from what she's expected but then again, Katsuki was the type to like chapstick more than her. She on the other hand, had rougher lips in the still crisp air of spring. They take a moment's pause to swallow down their ends of the treat before their lips press firmly together again for a proper kiss.

It's awkward and doesn't last very long but for her first official kiss – it's perfect.

Their next dare has to be rescheduled when they're randomly selected to compete against each other in an official school event – the yearly U.A. Sports Festival. There, he's announced as the winner despite being pissed of the way he claims the top. His match with his – technically – girlfriend was all fine and dandy especially once his raging heart had calmed down and he learned that her reckless plan was all her own doing and not influenced by her stupid nerd of a friend Deku. What wasn't fine and dandy was the way the rest of the rounds went for him and his pre-chosen opponents.

Putting the festival aside, Ochako's the one to come to him three weeks later with her idea for a rematch. She doesn't care that it's not for the public to see to prove her strengths on the battlefield but she wants a rematch of sorts. They've been going at this game for years that he naturally agrees, telling her to think about what she wants and he'll do it without cringing at how lame it may sound to him because he knows her. She's too much of a goody-goody to ask for something much more daring.

That is, until she completely takes him by surprise to the point his jaw nearly unhinges. He coughs to cover up the way she takes his breath away, feeling his face tighten from a fast approaching blush.

"I want you to give me a hickey on my neck and if you can't…" she gulps, trying to keep her confident demeanor, "I'll strip revealing more of my skin to you until you do"

He needs a minute to process the information. Either option sounds like a dream to him, he crosses his arms over his broad chest to secretly pinch himself to make sure that he's not asleep.

"What do I gotta do if I back out?" he cautiously asks, bracing himself for something completely normal.

She shrugs her shoulders, "nothing happens, I'll just go back to my dorm and I'll forfeit my turn"

He raises a brow, "why?"

She doesn't need him to elaborate, knowing exactly what he's asking. "I'm a hormonal teenager in love?"

He rolls his eyes at her academic explanation, "like I'm not?"

Ochako crawls over to him on his bed and plops herself on his crossed lap, legs casually on either side of him, not directly straddling him. "The girls are always talking about kissing and hickeys and… y'know they always bug me if I've ever gotten one…"

"Huh, so peer pressure" he's told her time and time again to ignore their classmates. It was none of their damn business how they go about their relationship. They've made out before plenty of times behind the bleachers and sometimes in their dorms. Even have fallen asleep while watching movies on their laptops together and shared each other's foods but they've never been more intimate than that.

She smacks his arm and frowns, "it's not that, Katsuki… I just…" was he really going to make her say it out loud?

"So why then?" he questions.

"I've always been yours but I want a temporary reminder on… my body" she deeply blushes at the confession.

"Okay" he simply says, not being able to come up with a witty remark.

While the world was used to his gruff, explosive, over-the-top personality – she knew his softer side, the one that wasn't always competing with himself to be the loudest or the one making a huge fuss over something so small.

He cups her cubby cheeks in his palms, focusing on her caramel colored eyes rather than the faint quivering of her lips. She's nervous and excited all at once.

Katsuki leans down to gently press his lips against hers, easing them into this, waiting for her to want more. It doesn't take long as he feels her growing bolder, moving her hands from tightly gripping the straps of his black tank to snaking her arms around his neck, pulling them closer. He's tender and passionate all at once, licking her lips to pry them open with his tongue.

Ochako moans allowing him entrance as her hands find their way up to the roots of his hair, tugging on ashy blond spikes to deepen the kiss. He obliges creating a steady rhythm between them, heads bobbing in a practiced dance, tongues in a dueling tango. It's exhilarating – hearts beating in the same frenzied state as their bodies buzz for more. He decides it's time to move onto giving her, her request when his lungs remind him that he's only human – he needs to pace himself and catch his breath.

She's heavily panting, tilting her head back to extend her neck when she feels him move her black baggy hoodie further down to get a good angle. His warm scratchy tongue licks the side of her column. His saliva chilling her spine as she feels him teeth lightly grazing over her sensitive skin. Lips nipping at his chosen spot, lower down her neck right on that junction between her throat and before her collarbone. He peppers her neck with kisses but always finds his way back to that one spot he likes, feeling the rumble of soft vibrations the most coming from her whenever she moans at his touch there.

"Ka… Katsuki…" she breathlessly moans relishing in the way he's tending to her neck but not quite biting down as she hopes. Growing frustrated despite the pleasure, she moves one hand away from his hair to unzip her hoodie. Well technically it was his that she's stolen from his closet months ago but he never asked for it back so now it was silently hers. The hoodie was getting in the way as her fingers fumble to tug, tug, tug it down where it pools around the bend of her elbows.

She's wearing a pink tank top with thin spaghetti straps, exposing more of her skin for him. Ochako has fair skin, a defined clavicle protruding out on her petite frame, and fully developed breasts that thankfully haven't caused her any back problems. She's busty and petite but definitely has meat on her bones for him to latch onto. Katsuki groans, knowing she'll continue to find ways to rile him up until he gives into marking her.

He's a hormonal sixteen-year-old boy as another other. If he hadn't fallen in love at such a young age for a spitfire like Ochako – he'd probably laugh at anyone's face that told him that he'd fall prey to the allure of teenage girls once he reached that age. If he hadn't met whom he knows to be his very soulmate, he'd scoff and stomp off, not wanting to hear people spout about their stupid love songs. He wasn't the type to write love sonnets and profess his love in public ways. If he hadn't found his match, he'd still be wandering around life content in not ever bothering to let love get in the way of his hero development. But that isn't what fate had in store for him when he first met a newborn Ochako at his toddler age.

He's so much more than what everyone perceives of him but he has a secret – at the core of all his overly-dramatic, brash, passionate personality – there's a flustered boy.

"Shiiitt… you win" he stops himself from giving her the hickey. He's only accomplished to wash her reddened skin in his own spit which wasn't very sexy at all. And he didn't want her to strip just for them to get to this point in their relationship. Why rush things? He wanted to enjoy the ride of getting there, of getting to explore all aspects of their dating life. There'll come a day soon enough when he's unafraid to harm her, even if she's the one who's asking to be marked.

Ochako covers her mouth so she wouldn't burst into a fit of giggles. It was always a secret pleasure of hers to see him recoil and grow flustered around her because it was a rare occurrence in their teenage years. She had an easier time of riling him up when they were kids compared to now with him constantly reminding her in public that he has a reputation to uphold. She'd playfully roll her eyes and agree, knowing that once they were all alone, she'd mischievously challenge him to their next dare.

"Oh okay" she dismissively tells him, not wanting to say out loud how she's a bit disappointed but doesn't blame him. At least he tried and she can now jot this down in her mental list of intimate dares they've tried – so far, this was the first on that list.

Ochako scoots out of his lap, pushing her legs backwards to get back into a normal sitting position at his side. "Goodnight, Katsuki!" she tells him, gripping the edge of his bed as she leans her body back to peck his cheek quickly before getting off his bed to leave his dorm.

She knows that he knows that their next challenge is entirely up to him. At least now he can't completely say that all her own ideas were lame compared to his – at times, impractical ones.

"Rematch, tomorrow night in your dorm" Katsuki declares, licking swollen lips. He knows what he just told himself, how he didn't want to rush things but he's a sore loser. He wouldn't take a defeat honorably without a fighting chance dammit. And it's not like he's really hurting her when she's the one asking for it. It settles in the pit of stomach, he'll suck it up and give into her demand without chickening out like a flustered coward this time. Come tomorrow night, everyone in their whole damn class will know that they belong to each other the following morning. He watches her back facing him, lingering for a few short seconds at his doorknob to hear him while covering a smirk.

Ochako doesn't turn around to confirm that she heard him nor tell him how she's looking forward to it. Slowly twisting the door opened, she leaves with a simple, "you're on"

XxxxxxxxxxxxxxxxxxxxxxxxxxxX

Done! To be continued.

See ya tomorrow!

You know the drill! Please R&R – it's greatly appreciated and I always get a kick out of reading your reviews/feedback. And again, please don't be afraid to – I can fluently read Spanish and partial French! Thankies~ :D