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7spaceace7 · 3 years

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Secrets (A Donatello x Reader)

This is incredibly self-indulgent and was really just a fic for me to obsess over tesla coils, but my girlfriend convinced me to post it- so here it is! It got kind of long too, but I hope you enjoy!

Word Count: 3236

Reader is given feminine terms in this one

Mild cursing (thank you Raph)

Absolute fluff attack, the sweetness will rot your teeth

Singing was your greatest passion. From a young age, you had been roped into music, the emotions it could represent with just a few notes and some relatable lyrics. It was happiness, it was sadness, it was anger and excitement, and it was everything you couldn’t express well enough with just words. Being a writer, sometimes that would get frustrating, but music helped you overcome the most challenging spots in a new piece or story. This is why you would constantly have earbuds in as you sang along to every song you’d memorized on your Spotify shuffle.

And Donnie noticed this. Every time you would enter the turtles’ lair, he would see you unplug and pack-up your headphones. Hell, he was even able to detect your singing from the sounds of the sewer tunnels echoing with every step you took closer. He’d hear you talk about the music or soundtracks of your favorite games and movies, analyzing what every slight twinge or reprise would allude to. And he loved every part of it. He loved getting to see those moments where music was all you could focus on. Your heart rate rose exponentially in anticipation and excitement. Your eyes would screw shut while you broke into a grin. Your hands would mimic motions to the beat as you played on invisible drums, or strummed a nonexistent guitar.

It was adorable to him, to say the least. But he never told you so. He never said a word, in case this might scare you off for coming across as “creepy” or weird. He knew most people probably didn’t pay this close attention to little things like that, but then again, he also knew that most people weren’t madly in love with you.

Which Donatello was.

He couldn’t tell you, because once he started rambling about you, he wasn’t sure he’d be able to stop. And if he didn’t stop, then he’d run the 89.07% chance risk of telling you how he’d been in love with you since the day they met you. That was way too high for him to be comfortable. No, he couldn’t tell you, no matter how badly he wanted you to know.

“Okay, so what if you just show ‘er you’re interested instead?” Raph asked, half paying attention to his brother’s predicament, half pounding the punching bag before him into the ground. Leo was in the dojo meditating, and Mikey was playing video games in the living room, which left the two middle brothers to their own devices. For Donnie, this was literally. His three-fingered hands fiddled with his latest electrical circuit. It was bound for sending the right amount of voltage into his inventions without needing four power strips and a generator all on their own. Unfortunately, he was too distracted to actually delve into its components, and settled for breaking and piecing it back together again.

“Show her? How would I do that?” Donnie’s voice trembled at the thought.

“I dunno, you’re the genius here,” Raph huffed, “There’s gotta be somethin’ in this place that you think she’d find cool. She loves music, right?”

“Yeah, like a lot, she even-”

“Rhetorical question, Don, heard the rant plenty,” His brother cut him off. Pausing his violent onslaught of the dummy, he turned to face him. “You’re nervous ‘cause you ain’t ever done somethin’ for a pretty girl before, I get it. So do somethin’ you know you’re good at. That’ll take the nerves off, your plan works, and then I won’ have to listen to you babbling about whatever new fuckin’ thing she did today. Win win.”

The younger turtle paused. “That was...actually pretty sound advice, thank you, Raph.”

“Anytime,” Raph nodded, a smug smile tugging at his lips from being able to help. Problem was, now he was invested. He’d listened to his brother’s rants and rambles and failed plans of possibly confessing for weeks now, what was gonna happen once he finally did it? Raph plopped onto one of Donnie’s bean bag chairs. He didn’t bother to pick up the training dummy. “So what ya gonna do, smart guy?”

Donnie blinked a few times, glasses twitching on his nose as he pushed them up. He didn’t know it, but you coined this his “brainstorming face”. He fiddled with the circuits once again.

“Uh...I’m not sure,” His tongue went dry. A million ideas fly through his brain each minute, and this decides to be the time that he can’t think of a single one good enough. Figures. “I could build her something? Maybe a new stereo, or upgrade the one she has.”

Raph made a noise of disapproval. “You can do better, any old fix-it guy could do that.”

“Fair. Maybe I could- ow!”

A short buzz of the air cut him off as his fiddling paid off. To the world’s great irony, a light bulb several inches away lit up.

“You good?”

“Yeah, I’m good, I…” Donnie trailed off. The purple-clad turtle’s eyes widened as he registered what happened. “I’m better than good, I just had an epiphany!”

“Epipha-what?”

“An epiphany, sudden realization, an idea!” Donnie flicked his goggles back down, enhancing his vision with the magnifier on it. Wires were tugged in and out, and a transmitter was displaced. With a snort of triumph, he raised it to the air for his brother to see. “This is the answer!”

“A tiny board thing. Just what she’s always wanted,” Raph rolled his eyes, but Donnie was prepared for this.

“Not just a tiny board, a tiny board with this!-” With great haste, Donnie was next to Raph, holding the board out properly. “My side-side project, this little thing, look at the coil here, this is it! This is a tesla coil, capable of transmitting thousands and thousands of volts of energy surging through the air, powering anything within its radius, which is perfect and exactly why I needed to reconfigure it to power my lab and this one new machine I’m working on, but that’s not why this is the perfect idea!”

“Wow, please continue, professor, I’m dyin’ to know.”

“Glad you asked! Watch this!” One aux cord, T-Phone connection, and light-dimming later, the lab went dark in anticipation. And suddenly, with the press of a play button on Donnie’s shuffle, music started to fill the air. But it wasn’t coming from his phone. It was coming from the coils, surging and creating not only electric energy that was visible to the human eye as it sparked, but music. Sound. The beats and notes of the song playing sprouted out in the form of electricity.

Raph’s green eyes became transfixed on the sparks flying out. “Holy shit.”

“Holy shit is right!” Came the squeals of utter nerding out, “This is only a tabletop version of an SGTC circuit, my own type of it anyway based on Tesla’s original designs, but if I reworked it, made it bigger, made it lifelike and maybe four or five of them, I could create the most advanced musical performance this city has ever seen!”

“I’m gonna pretend I know everything you just said because clearly this is your nerd thing,” Raph started, utterly confused. Even still, a reassuring smile framed his features. “But this looks pretty damn cool. This right here? Exactly what ‘m sayin’, Don. This is you.”

“Do you think she’ll like it...?” Donnie asked in a hopeful voice. He wasn’t just asking about the invention.

“Course she will.”

~x~

A couple weeks had passed since that fateful conversation with Raph. He’d been in and out of the lab since then, but between patrols and the mandatory bathroom breaks, there was hardly a time he wasn’t working on his great new project. You weren’t even allowed to go into the lab, per his request, for all his time there.

However, he always made sure to make at least one movie whenever you’d come hang out at the lair from work.

Finally, one Friday night, the set up was complete. Pride swelled in Donnie’s chest as he looked at his creation: six symmetrically placed tesla coils sprung up from the ground and walls all around his lab space. The coilings wrapped around metal frames, spiraling into a beautiful arrangement of engineering, if he did say so himself. Mikey said it looked like the lasers out of a DC comic, which was also not a bad thing to be. He just hoped that you would like it. All of it was for you, of course, but over the weeks that he’d been preparing it, he found more beauty in the music of tesla coils than he ever had appreciated before.

Donnie thought he might thank you for that, if he could get his nerves around it.

God, he was so nervous. Anxiety rushed through his body like the electric pulses he was perfecting. They were already done, but it was all he could do to distract himself while waiting for you to arrive. Maybe the frequencies weren’t in the right key. What if they sounded better this way? Or maybe the firing power wasn’t enough? Trajectory looked alright, maybe it just-

“Donnie?”

“Gh! Y/N, hey!” Stammered the surprised terrapin after knocking his head against the top of a coil. His goggles were on the setting of night-vision, but that didn’t account for night-spatial-awareness, it seemed.

“I got your text to come,” You tried to smile at him, but the dark laboratory proved to make that difficult. “How come it’s so dark in here?”

“Uh, well, that’s p-part of the surprise! Eheh. Gimme just a second-”

You waited patiently outside of his lab, vision still applicable, but grew concerned the more strange noises and clangs you heard coming from inside. This was definitely a whole new level of “Donnie Surprises” just by how nervous he seemed about it.

You yelped when his hand grabbed your arm and dragged you back inside the darkness.

“Okay, uh,” He started, before clapping his hands together for the lights to switch back on, “This is what I wanted to show you.”

Your gaze spun all around the lab. After adjusting to the light, you could clearly see giant mechanism after mechanism placed strategically around in a dome-like setup. Coils that protruded like round-edged spikes circled you both, and in the center was a metal cage.

“Oh my god…” You almost whispered. A large grin broke out onto your face as you stared in quiet marvel at the scene. His plan was working, and Donnie lit up with an outstretched arm in presentation.

“These bad boys are called tesla coils-”

“Tesla coils!” You squealed in imperfect unison to what you assumed was the start of an explanation. “You made tesla coils, Donnie, holy shit!”

“You’ve heard of them?!” Donnie exclaimed, eyes widening behind his glasses.

“YES!” Your hands began to wave around excitedly, “Oh my god I used to be OBSESSED with these things! I heard about when I was a kid from that old movie, oh what was it, it was like the apprentice’s-”

“Sorcerer’s Apprentice!”

“THAT! Yes!”

“I haven’t seen that movie in years!”

“Me neither! All I remember is that Hiccup’s voice actor totally nerded out and programmed his giant tesla coils to play music for the girl he wanted to impress, and it was the coolest thing because these giant machines were playing music, music out of nothing but sparks of electricity at different frequencies, which to be honest probably would have caused more of an energy problem than the movie suggested because goddamn do they take up a lot of power, but I was like six and didn’t care!” You laughed in an energetic burst of word association, practically bouncing on the balls of your feet.

Donnie could have kissed you then and there for that alone.

A grin crept onto his lips as he watched you ramble on about the movie, leaving all anxious thoughts to fall from his mind. For once, someone actually understood one of his passions. Better than that, she was explaining the process to him of all people! Sure, she was intuitive enough to know he didn’t need it, he literally had just built them after all. This was just out of pure excitement. Someone in his life was talking about science and technology like they were the most fascinating things on the planet, just as the purple-masked turtle believed it was. Well, second only to the ecstatic girl in front of him.

“-And so, I randomly remembered it again not that long ago, so I looked it up and found so many videos on YouTube about it. I kid you not, I listened to tesla coils and tesla coils alone for a solid week.”

You breathed heavily, a little winded after such an intense info-dump. God, he always loved when you got excited about something.

“This is kind of surreal,” Donnie chuckled a bit, pushing up his glasses when they tumbled down his nose, “I had no idea you’d get what these were, much less have known so much about them.” Donnie’s eyes widened at his own panicked-fueled blabbering. “N-Not that I think you’re stupid! I just-- I mean it’s not-- common? It’s more of-”

“A niche interest, yeah. No worries,” You finished for him, signaling his stuttered words hadn’t fallen on offended ears. Donnie quietly sighed in relief. Time ticked by in seconds, but even that was much too fast for this martial artist to grasp. If he could have constructed a device to pause the fabrics of time, he would have long ago, simply to relish the moments with you that meant everything to him. It wasn’t your fault your eyes captivated him more than any element he’s worked with.

“So,” You began eagerly, startling him out of his thoughts, “Are we gonna listen to some zappy poles go brrr or what?”

Donnie snorted at your juvenile word choice. “Yeah, totally. Now, ah,” He walked over toward the large cage in the center, stepped inside, then poked his head out with a dorky grin. A large, green hand stood outstretched towards you. “I think you’d better step inside my cage.”

“If you keep quoting the damn movie like this, I am going to explode from excitement, and it will be your fault!” It was a wonder how you hadn’t caught onto his plan yet, honestly. You made no sense of hesitation before grabbing his offered hand (even though your hands were small enough that they hardly matched his palm’s size), and clambered into the cage in front of him. This was a great excuse for you to be close to him without it being weird. And now, with your back brushing up against his plastron, the butterflies in his chest told him it was totally a good call.

Donatello would take this secret to his grave, however.

“Put your hands on the rail here, yep just like that,” Donnie nodded after your hands found the safeguard rail. A couple buttons tapped into a laptop later, he settled his own hands next to yours. “Let the magic begin.”

Magic would have been the understatement of the year. A coil in front of you quickly shot out its first spark. Familiar music breached the sound barrier to your ears. The one behind you both caught it instantly. Spark after spark sent back and forth between the coils, soaring through the lab like the most incredible game of electric catch.

“Whoa!” You laughed when the sparks would bounce off the cage itself, pressing closer to the turtle behind you (much to his surprise every time). Your shining e/c eyes never left the electric bolts shooting out. “This is insane!”

“Heh, glad you like it!” Donnie watched you closely that entire time, more entranced by your excitement and wonderstruck self than anything he’d created. He could power up the tesla coils anytime of day, but this was a special moment he’d never be able to recreate in a controlled environment. This was no experiment, this was real and it was happening right now.

The only thing left to do was tell you how he felt.

“Y/N, I have to tell you something,” He began, stepping away to give you a bit of space. His heart rate was increasing by the second. The way you turned to look at him wasn’t helping, either.

“What is it?” You spoke softly, somehow able to be heard over the music. Donnie could hardly meet your eyes, so he took your hands in his instead.

“I...I don’t know how to say this exactly,” He started, “I’ve been trying to do it for months, going over every possible conjuncture of words, something that would be heartfelt and honest, poetic even? But the truth is, words aren’t my thing, th-they never have been. I’m a science guy, I take things apart and put them back together again, I figure out what makes them work, I see life as a million tiny parts to analyze.”

He paused his quickened speech to take a breath. Your hands squeezed his larger ones as an offer to continue.

“And so, I’m...bad at feelings. I see it all as chemicals and components used by the brain to create action and reaction. But now I’m not so sure if that’s all they are, and really the only thing I am sure about is that it’s because of you that I’m questioning everything I ever thought I knew. Maybe, maybe life is more than atoms and chemicals, and instead it’s about..moments. Moments like this. Moments that...that I..that I really want to keep forever and play over and over again.”

“Donnie…” You spoke. This time he squeezed your hands.

“I know I’m rambling and I should really get to the point, so what I’m trying to say is,” He took another breath, steady this time. His gaze met yours again. “I want to live these moments with you every day. You’re special to me. You’re part of our family, but this is more than that, this feeling is-”

“Love.” You finished for him. Both of your eyes widened as you realized the other felt how you each did.

Donatello nodded slowly, hesitant to be so certain, but knowing it was true. There were no more words to be exchanged after that, only actions, only movements so soft and gentle that the large terrapin was certain he’d break if they could fit in his hands. Your hands left his and instead reached up to grab the long ends of his mask, and tugged gently for him to reach you. He leaned down without a thought. A three-fingered hand found your waist this time.

You kissed. Soft, human lips connected to his slightly chapped reptilian ones. The turtle had waited for this moment since he realized the attraction he felt towards you was not just powerful chemical reactions, but true feelings. It wasn’t biology, it was chance and fate and one-in-a-million all at once. As the sparks continued to (literally) fly, Donnie let his eyes close. This was the present. He was here, he was holding a great new adventure in his hands, and there was a brilliant future just around the corner.

The song may have finished, but this is what would last forever.

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