Do a fanfiction about yns birthday, no one remembers but leo
Rooftop Wishes--Bay! Leonardo X Reader (Fluff)
Authors note: This was a quick fic, not very big! I hope you like it! It also isn't proof read cuz..
Wordcount: 1876 words
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The day started like any other.
The lair was already alive with noise when you walked in that afternoon. The familiar smell of pizza and machine oil lingered in the air, and the faint buzz of Donnie’s lab equipment echoed down the hallway.
You had stopped by after school like you always did.
Part of you had quietly wondered if maybe, just maybe—someone would say something.
But the moment you stepped into the living room, Mikey was sprawled across the couch with a controller in his hands.
“Y/N!” he shouted without even looking away from the screen. “Perfect timing. I need a second player.”
You forced a small smile and dropped your bag beside the couch.
“Hey, Mikey.
Across the room, Donnie barely glanced up from his tablet.
“Hello, Y/N.”
Raph was halfway through a workout, lifting a heavy set of improvised weights near the far wall.
“What’s up?”
No “Happy birthday.”
No weird party decorations.
No cake.
Just… another normal day.
You told yourself it didn’t matter. Birthdays weren’t a huge deal anyway. It wasn’t like you had expected anything.
Still, the quiet disappointment sat in your chest all afternoon.
You hung out for a couple of hours, played a few rounds of games with Mikey, watched Donnie rant about a new invention, and even helped Raph clean up the training mats.
But eventually the feeling got harder to ignore.
So you grabbed your bag.
“I should probably head home,” you said.
Mikey waved from the couch without looking away from the screen.
“See ya tomorrow!”
Donnie hummed in acknowledgement.
Raph gave a quick nod.
And just like that… you left.
—------
Later that night, the lair had grown quiet.
Mikey had finally fallen asleep on the couch with a controller still in his hand.
Donnie was buried deep in the lab.
Raph had disappeared somewhere after training.
Leo sat alone in the dojo.
But he wasn’t meditating.
He was staring at the small calendar pinned to the wall.
His brow furrowed slightly.
“…Oh.”
He remembered.
You had mentioned it weeks ago in passing. Something small while you were all hanging out. Something most people probably would’ve forgotten immediately.
But Leo didn’t forget things like that.
Especially when they mattered.
And judging by the look on your face earlier…
It had mattered.
–
About an hour later, you heard a quiet knock at your bedroom window.
You blinked in confusion.
It was late.
Pulling the curtain aside, you nearly jumped.
“Leo?!”
He stood outside on the fire escape, looking slightly awkward but determined.
“Can you come with me?” he asked quietly.
You frowned.
“…Right now?”
“It won’t take long.”
Something about the way he said it made you grab your jacket.
A few minutes later you were climbing up onto the rooftop with him.
The city stretched out around you, glowing with thousands of lights. Cars moved like slow rivers far below, and the night air was cool against your skin.
You wrapped your arms around yourself.
“So… what’s this about?”
Leo rubbed the back of his neck slightly.
Which was already unusual.
Then he reached into a small paper bag he had brought with him.
And pulled something out.
A single cupcake.
With a small candle stuck in the middle.
Your brain froze for a moment.
Leo looked slightly nervous now.
“I… uh…”
He cleared his throat.
“Happy birthday, Y/N.”
Your chest tightened instantly.
“You… remembered?”
Leo looked confused by the question.
“Of course I did.”
Your eyes stung unexpectedly.
All day you had tried to convince yourself it didn’t matter.
But hearing those words now…
It mattered.
Leo quickly lit the candle with a small lighter.
The flame flickered softly in the night air.
“I’m sorry it’s not a real cake,” he said. “Mikey would’ve eaten it before I got it back to the lair.”
You laughed weakly.
“That’s probably true.”
Leo held the cupcake out toward you.
“You’re supposed to make a wish.”
You stared at the candle for a moment.
The tiny flame reflected in Leo’s blue eyes as he watched you patiently.
For a second, the entire city seemed to fade away.
Just the two of you standing on the rooftop.
You closed your eyes and made your wish.
Then leaned forward and blew out the candle.
Leo smiled softly.
“Did you get what you wanted?”
You looked up at him.
And suddenly the disappointment from earlier didn’t feel so heavy anymore.
“…Yeah,” you said quietly.
“I think I did.”
Leo looked relieved.
“Good.”
You took the cupcake from him, your fingers brushing lightly against his hand.
Neither of you pulled away immediately.
After a moment you asked softly,
“Did you plan this?”
Leo shrugged slightly.
“I just didn’t want you to think nobody cared.”
Your heart did a weird little flip at that.
“Well…” you said, smiling.
“You proved at least one person does.”
Leo looked away slightly, the faintest hint of green flushing across his face.
“…You should eat the cupcake before it freezes.”
You laughed softly, brushing a bit of frosting from the cupcake with your finger before taking a small bite.
It was simple. Just vanilla with way too much blue icing.
Definitely something Leo had grabbed quickly from a bakery window somewhere.
But it tasted better than any birthday cake you’d had before.
Probably because of who brought it.
Leo leaned against the low rooftop wall beside you, arms folded loosely as he watched the city below. For a moment neither of you spoke.
The quiet wasn’t awkward though.
It was… comfortable.
“You didn’t have to do this,” you said after another bite.
Leo glanced over at you.
“Yes, I did.”
You raised an eyebrow.
“Oh?”
He looked back toward the skyline.
“You looked disappointed earlier.”
Your stomach sank slightly.
“You noticed that?”
Leo gave you a small look.
“I notice things.”
That much was true. Leo was always paying attention—to threats, to his brothers, to every little detail most people missed.
Apparently that included you.
“I didn’t want to make a big deal about it,” you admitted quietly. “Birthdays aren’t that important.”
“They’re important,” Leo said.
You looked over at him.
He seemed completely serious.
“They mark the day someone important showed up in the world.”
Your face warmed a little at that.
“Wow,” you teased lightly. “That sounded like a very heroic leader thing to say.”
Leo rubbed the back of his neck slightly.
“…I might’ve practiced that line.”
You blinked.
“You practiced it?”
“Once.”
A smile slowly spread across your face.
“That’s actually kind of adorable.”
Leo immediately looked away.
“I regret telling you that.”
You laughed again, leaning your elbows on the rooftop ledge beside him.
Below you, the city buzzed with life—cars, lights, distant music drifting up from somewhere down the street.
But up here it felt like the whole world had slowed down.
“Do you guys celebrate birthdays?” you asked.
Leo thought about it.
“Not really.”
“No cake? No parties?”
“Mikey tries,” Leo said. “But usually it just turns into a pizza eating contest.”
“That sounds about right.”
You finished the last bite of the cupcake, brushing crumbs off your hands.
“Still,” you said softly, “thank you for remembering.”
Leo glanced at you again.
“You’re welcome.”
For a moment neither of you moved.
The cool wind brushed through your hair, and Leo’s mask tails shifted slightly with the breeze.
Then he spoke again, a little quieter this time.
“I also got you something else.”
You blinked in surprise.
“You did?”
Leo reached into the pocket of his belt and pulled out a small object.
It wasn’t fancy.
Just a thin blue cord with a small charm tied into it.
You leaned closer to look at it.
It was a tiny carving.
A turtle shell.
“I made it earlier,” Leo said, suddenly sounding a little unsure. “It’s… supposed to be a good luck charm.”
Your eyes widened.
“You made this?”
Leo nodded.
“Master Splinter taught us some carving techniques when we were younger.”
You carefully took the necklace from him.
The wood was smooth and warm from being in his hand.
“This is really nice,” you said softly.
Leo looked relieved.
“Good.”
You hesitated for a second before tying the cord around your neck.
The little shell rested just below your collarbone.
“There,” you said, smiling. “Now I have a permanent reminder of my weirdest birthday ever.”
Leo raised an eyebrow.
“Weirdest?”
“You climbed onto my fire escape at midnight and kidnapped me for rooftop cupcakes.”
“…Fair.”
You leaned against the ledge beside him again, looking out at the city.
For a while you just stood there together in the quiet.
Then Leo said something so softly you almost missed it.
“I’m glad you were born.”
Your heart skipped.
You turned your head slowly.
Leo was staring out at the skyline again, like he hadn’t just casually dropped the sweetest sentence ever spoken.
You smiled.
“…You’re really bad at being subtle, you know that?”
Leo blinked.
“I was trying to be sincere.”
“You were,” you said warmly.
Then, without really thinking about it, you leaned your head gently against his shoulder.
Leo froze.
Not dramatically.
Just… very still.
You waited half a second.
“…Is this okay?”
Leo cleared his throat quietly.
“Yes.”
His voice was a little higher than usual.
But after a moment, his shoulder relaxed slightly beneath your head.
For a while, neither of you moved. The city lights flickered below, cars passing like quiet rivers of light through the streets.
You slowly turned your head toward him.
Leo glanced down at you briefly, clearly unsure what you were about to do.
Before he could overthink it, you leaned up slightly and pressed a quick, soft kiss to his cheek.
“Thank you, Leo.”
For a second…
Leo completely froze.
Not just still—frozen.
His brain was clearly trying to process what had just happened.
“…You’re welcome,” he finally managed, his voice quieter now.
You leaned back against his shoulder again like nothing unusual had happened.
But Leo was suddenly very aware of the warmth still lingering on his cheek.
He rubbed the back of his neck awkwardly.
“…That wasn’t necessary.”
You smiled slightly.
“I wanted to.”
Leo didn’t know how to respond to that.
So instead, he looked back out at the skyline again, pretending to be very focused on the city.
But the faintest hint of green flushed across his face.
After a moment, you nudged him lightly with your shoulder.
“You’re blushing again.”
“I am not.”
“You definitely are.”
You laughed softly.
“Leo.”
“Yes?”
“…You’re a terrible liar.”
He sighed quietly.
“…I know.”
But even as he said it, a small smile tugged at the corner of his mouth.
And the two of you stayed there on the rooftop, watching the lights of the city flicker in the distance.
–
Back in the lair, Mikey suddenly bolted upright on the couch.
“WAIT.”
Raph groaned from the other room.
“What now?”
Mikey gasped dramatically.
“IT WAS Y/N’S BIRTHDAY TODAY.”
Silence.
Then Donnie’s voice echoed from the lab.
“…Oh no.”
Raph muttered from down the hallway.
“…Leo remembered, didn’t he?”
Mikey slowly grinned.
“Oh he 100% remembered.”
Back on the rooftop, Leo had absolutely no idea the interrogation waiting for him back home was about to be brutal.
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