Chapter Text
The roof was quiet except for the faint hum of music from Donnie’s phone speaker. Stars stretched endlessly above them, crisp and clear, untouched by the usual New York smog. The summer air was warm but still, the kind of night that made silence feel sacred.
Leo lay sprawled on the blanket, arms tucked behind his head, eyes fixed on the sky. Donnie sat more rigidly, knees pulled up, his gaze alternating between the constellations and the delicate wiring on his wrist tech. But tonight wasn’t about inventions or repairs. Tonight was about them.
Their song played softly in the background. It wasn’t flashy or grand, but it was theirs.
Leo broke the silence first, his lips quirking into a lazy smile. “Y’know, I don’t think I’ll ever get tired of this song.”
Donnie glanced over, a rare softness lighting his eyes. “Of course not. It’s our special twin song. Permanently etched into the Hamato archives.” He shifted, resting his chin on his knees. “I’d never get tired of it either.”
The words fell away after that. For a while, they just existed—two halves of a whole, breathing in sync, staring up at something bigger than themselves.
But then Leo’s chest rose with a deep inhale, and Donnie noticed the subtle tremor in it. His twin’s hand twitched against the blanket, gripping and releasing like he was holding onto something fragile.
“Can I tell you something?” Leo asked.
The way he said it—too careful, too hesitant—made Donnie’s stomach knot. Leo was rarely like this with him. Jokes, yes. Deflections, all the time. But not this.
Donnie tilted his head, feigning casual even though worry crept in. “Sure, Nardo. What’s up?”
Leo hesitated. His throat bobbed as he swallowed, eyes still pinned to the stars like he was afraid to look at his twin. And when he finally spoke, it was so quiet that Donnie almost thought he imagined it.
“I’m tired of it.”
For a beat, Donnie blinked. Then he forced a small chuckle, trying to diffuse whatever strange tension was brewing. “The song? You just said that you could never get tired of it”
No answer.
Donnie’s chest tightened. He repeated the question, voice sharper, edges tinged with unease. “Leo…Are you talking about the song?”
Still nothing.
Leo’s lips parted, trembling just slightly. He shook his head. Just once. “No.”
The word was simple, but it felt like a crack in Donnie’s shell.
His mind raced, scrambling for logic, equations, solutions.
Tired of what?
Training?
Patrolling?
The invasion’s aftermath?
But deep down, something in him already knew.
He shifted toward Leo, desperate to catch his twin’s gaze. “Then what?” His voice was brittle now, too loud for the quiet rooftop. “Leo, what do you mean?”
Leo finally turned his head, and Donnie wished he hadn’t. His twin’s eyes were glassy, weighed down with exhaustion so profound it wasn’t physical. A kind of weariness that cut deeper.
“I’m tired of fighting it, Dee,” Leo whispered. “Tired of… being the one who has to keep smiling. Pretending like I’m fine. Pretending like I’m not…” His voice cracked, and he dragged a shaky hand down his face. “…like I’m not so damn tired of living like this.”
The world dropped out beneath Donnie’s feet. His throat closed, heart lurching painfully as the meaning slammed into him.
Not the song.
Not the fights.
Life.
Leo was tired of living
“Leo…” Donnie’s voice broke, horror seeping into every syllable. His hands shot out before he could think, gripping his twin’s shoulders like anchoring him in place would stop the words from being real. “No. No, you don’t—you don’t get to say that. Don’t you dare—”
Leo flinched, but he didn’t pull away. He just looked so unbearably tired.
So done.
Donnie’s mind screamed, but his mouth could only stammer, a storm of panic crashing through him. “You’re my twin—you’re half of me—you can’t—You can’t mean that, Leo.”
But Leo’s silence was answer enough.
Donnie’s breath came sharp, ragged. His grip on Leo’s shoulders trembled, not with weakness, but with the terror of holding something precious he might lose.
“Leo…” His voice cracked, and he shook his head violently, as if the words could just be undone if he rejected them hard enough. “No. No, no, no. Don’t—don’t say that. You don’t get to say that.”
Leo’s gaze dropped, shame flickering across his face. “I’m not saying it to hurt you, Dee. I just…” He exhaled a shaky breath, eyes flicking up toward the sky again. “I can’t keep pretending I’m fine when I’m not. I’ve been carrying this mask for so long, and I’m just… tired. Tired of being everyone’s hero. Tired of being your anchor. Tired of being…” His voice faded. “Tired of being me.”
Donnie’s heart stopped. His chest felt like it was collapsing in on itself, every beat jagged and uneven. He shook Leo, desperate, panicked. “Do you hear yourself right now? Do you understand what you’re saying?”
Leo flinched but didn’t resist. He whispered, “I don’t want to fight anymore.”
That broke something in Donnie. His vision blurred with tears he didn’t remember allowing. “No! No, you don’t get to leave me, Leonardo!” His voice cracked, hysterical now, his usual composure utterly gone. “Do you have any idea what that would do to me? To Raph? To Mikey? To April? To Dad?”
Leo winced, guilt flickering in his eyes. “Of course I do, Dee. That’s why I haven’t—” He stopped himself, but the unfinished sentence sliced Donnie open.
Haven’t what?
Haven’t done it yet?
Donnie choked on a sob, clutching his twin like he might vanish into starlight if he let go. “Don’t you ever say you’re tired of living. Don’t you dare. You’re my twin, Leo. My other half. My everything. You think I can survive without you? You think I could just… keep going if you weren’t here?” His tears fell hot and fast, dropping onto Leo’s plastron. “A life without you isn’t a life at all. It’s just… nothing.”
Leo’s hands trembled as he finally reached up, touching Donnie’s wrist as if to calm him—but his own eyes were wet, his lips trembling. “I don’t want to hurt you, Dee. I just… I’m so tired of pretending I’m strong enough. I don’t feel like a leader, or a twin worth leaning on. I feel… broken. Like I should’ve stayed in that prison dimension, like maybe that was supposed to be my ending.”
The words tore Donnie apart. His sobbing turned into gasping anger, fueled by desperation. “Don’t you dare reduce yourself to that! Don’t you dare think for even a second that you’re disposable!” He pressed his forehead against Leo’s, clutching him like a lifeline. “You’re worth more than every invention I’ll ever make. You’re worth more than the stars we love staring at. You’re worth everything, Leo. Do you hear me? Everything.”
Leo broke then, the tears finally falling freely. His body sagged into Donnie’s hold, and he whispered, raw and small, “But what if I’m not enough, Dee? What if I’m not enough for you, or the family, or… myself?”
Donnie’s heart shattered again, but he forced himself to steady his voice, even as it quaked. “You are enough. You’ve always been enough. You are my twin, my partner in crime, my other half. Without you, I’m not Donatello—I’m just… half of something broken. Do you understand? If you ever left me, I wouldn’t survive. I couldn’t. Because my life is tied to yours, Leo. Always has been. Always will be.”
He tightened his hold, shaking with the intensity of his plea. “So don’t you ever talk about being tired of living again. Because your life? It’s worth living. Even if you don’t feel it right now, I’ll hold it for you. I’ll remind you every day if I have to. I’ll fight for you until you can fight for yourself again. Because I love you, Leo. More than I can ever explain. More than anything else in this world.”
Leo sobbed then, raw and guttural, collapsing fully against Donnie’s chest. “I don’t know how to stop feeling this way.”
Donnie buried his face in his twin’s shoulder, holding him as tight as he dared. “Then let me help you. Let me carry it with you. You don’t have to do this alone, Leo. You never did.”
The song still played softly in the background, but neither twin noticed anymore. They were too busy clutching each other under the endless sky, two halves of a whole refusing to let go, even when the darkness tried to pry them apart.
And for that night at least, Donnie decided: if Leo was tired of fighting, then he’d fight hard enough for the both of them.
.
.
.
A couple of hours later
The rooftop was silent now except for their mingled breaths, hiccupping sobs fading into a raw, fragile quiet. Donnie still clutched Leo like if he let go, his twin would dissolve into stardust.
After a long time, he whispered, his voice hoarse from crying, “We should go home, Leo. Tell Raph and Mikey about this. They deserve to know what’s going on. They’d want to help.”
But the moment he shifted to move, Leo’s arms locked around him like iron.
“No.” The word was sharp, panicked. Then, softer, trembling: “I don’t want to tell them. Not yet.”
Donnie froze, torn between instinct and reason. “Leo… you can’t keep this locked away. They need to understand. We can’t—”
“I don’t want to, Dee.” Leo’s voice cracked, small and raw. “Not them. Not now.” His grip tightened until Donnie could barely breathe. “Please. Please don’t tell them. Just you. I can’t—” His words crumbled into a whisper. “I don’t really even want to go home tonight.”
Donnie’s chest squeezed painfully. His rational mind screamed that bottling this up was dangerous and reckless. That he should drag Leo home and force him into the family’s arms where he belonged.
But then Leo’s eyes lifted to his, shimmering with unshed tears, terrified and pleading all at once. “Please, Dee. Just between us. Please.”
Donnie’s heart twisted. He wanted to argue. He wanted to insist. But faced with his twin’s begging, he sagged, shoulders heavy with defeat.
He exhaled hard, the sound somewhere between a sigh and a sob. “…Fine. Just between us.”
Relief softened Leo’s face. He melted against Donnie’s plastron, whispering with a shaky smile, “Thanks, Dee.” His arms squeezed tighter.
Donnie stared up at the sky, silent, mind spinning a thousand directions at once. Should he keep this promise? Should he break it later for Leo’s sake? His thoughts swirled like constellations shifting overhead.
Leo yawned then, small and tired, the sound so vulnerable it tugged something fierce in Donnie’s chest.
“…I know you don’t really want to, but we should still go home,” Donnie murmured, brushing a hand over Leo’s shell. “You need rest. And if you come with me, I’ll allow a twin cuddle pile. Full deluxe model, pillows and blankets provided. Only the best for you”
Leo groaned softly, half a protest, half a laugh. “You drive a hard bargain, Dee.”
But he didn’t fight when Donnie stood, guiding him gently down the fire escape.
Back at the lair, the quiet halls felt warmer than usual, cloaked in night. They slipped into Donnie’s room, shutting the world out. Donnie got to work with precision—pillows arranged, blankets layered just right, star projector casting soft purple and blue swirls across the ceiling.
Leo watched tiredly, eyes heavy, until Donnie finally settled into bed. Without hesitation, Leo curled against him, tucking his head onto Donnie’s chest. The steady beat of his twin’s heart thumped beneath his ear, grounding him.
Donnie wrapped his arms around him protectively, one hand stroking the curve of Leo’s shell. His voice came low, gentle. “You’re safe, Nardo. I’ve got you. Always.”
Leo let out a soft, involuntary chirp, snuggling closer. His eyes fluttered shut as Donnie began to hum—then softly sing—the old lullaby Splinter used to sing to them when they were little. The notes were fragile, uneven with emotion, but they wrapped around Leo like armor against the dark.
“I love you,” Leo mumbled sleepily into Donnie’s plastron, words warm against his skin. And then, finally, he drifted into a peaceful sleep.
Donnie stayed awake longer, holding him close, thoughts racing. Should he tell Raph and Mikey anyway? Should he risk breaking Leo’s fragile trust for his safety? His chest ached with the weight of the choice.
“…Future Donnie’s problem,” he whispered to himself, kissing Leo’s forehead softly. Right now, the only thing that mattered was that his twin was here, safe in his arms, breathing steadily.
“Sweet dreams, Nardo. Love you too.”
And with Leo clutched tight against his heart, Donnie finally allowed himself to sleep.