Lost Legion Training Room 

The sound of energy blasts, swift footwork, and the occasional grunt of effort echoed through the metallic walls of the training area. Blackfire stood tall, her hands on her hips, a smug grin playing on her lips as she dodged another of Jinx's hex bolts with ease.

"Come on, pinky," Blackfire taunted, lazily flipping over another incoming blast. "You can do better than that. Or are you holding back 'cause you're afraid I'll fry that pretty little face of yours?"

Jinx let out a frustrated huff, her hands glowing with crackling pink magic. She darted forward, vanishing into thin air before reappearing behind Blackfire. A surprise attack. Smart. But not smart enough.

Without even looking, Blackfire ducked under Jinx's attempted sweep kick, then spun, catching Jinx by the wrist mid-attack. "Tch. Too slow." With a flick of her wrist, she sent Jinx skidding backward, forcing her to plant her feet to avoid crashing into the wall.

Y/N, standing a few feet away, had been quietly watching with arms crossed, studying every movement. Blackfire was dominating—again. It was expected, but something about her confidence made him want to push her limits.

Blackfire cracked her knuckles and smirked, looking back at him. "Honestly, I could take all of you at once without even breaking a sweat."

Y/N raised an eyebrow. "That so?"

She grinned. "Oh, it's a fact, fearless leader."

Y/N exchanged a glance with Rose, who smirked, and then looked at Terra, who simply shrugged. "Alright," Y/N said, rolling his shoulders. "Let's put that to the test. Jinx, you're not alone anymore."

Rose unsheathed one of her daggers, spinning it between her fingers as she stepped forward. "Hope you don't mind a challenge, princess."

Terra clenched her fists, the floor beneath them trembling slightly. "Yeah, let's see how much you can really handle."

Blackfire just laughed, stretching her arms above her head. "Oh, this is gonna be fun."

Blackfire's POV 

The moment the first attack came, my body reacted instinctively.

Jinx vanished again, trying to pull the same trick—this time from my right. I fired an energy blast in that direction before she could fully materialize, forcing her to teleport mid-air to avoid it.

Terra made the next move, launching a barrage of rock spikes straight at me. I dodged left, flipping over one of them, only for Rose to lunge at me with a deadly swing of her dagger.

I grabbed her wrist mid-strike, twisting her arm just enough to make her let go. But instead of retreating, she used the momentum to swing her leg up for a kick—crafty little assassin. I barely avoided it, flipping backward to put space between us.

This... felt familiar.

For a brief moment, the cold steel of the training room was gone, replaced by the golden hue of Tamaran's training grounds.

I was younger, stronger than all of my planet's warriors combined, forced to fight with handicaps just to make things fair for them. That was the life of Princess Komand'r—Blackfire.

I wasn't just better. I was unstoppable.

But no matter how much I proved myself, no matter how much I outshined every other warrior, there was always her.

The good sister. The sweet one. The lovable one.

My dear, darling little sister, Starfire.

While I trained, conquered, and bled for our people, she was the one they adored. Starfire, with her ridiculous kindness. Starfire, with her foolish mercy. Starfire, who was set to inherit the throne instead of me simply because she fit their idea of a perfect princess.

Me? I was the evil one. The outcast. The shadow behind the golden light.

I hated it.

I hated her.

. . .

I grit my teeth, snapping out of the memory just in time to dodge a synchronized attack from Terra and Jinx.

I wasn't on Tamaran anymore. That life was behind me. I didn't care about it. I didn't care about her.

...Right?

Rose was fast—faster than I expected. She managed to slice the fabric of my sleeve, a hair away from cutting skin.

I snarled, grabbing her wrist and twisting her around, using her as a human shield just as Terra launched another attack. The rock slammed into Rose instead of me, sending her skidding back. I used that moment to blast Jinx mid-air before she could teleport, sending her crashing onto her back.

Terra was the last one standing. She clenched her fists, the ground trembling violently beneath us. She was going all out.

I smirked. "That all you got?"

She growled. "Shut up!"

The entire training floor erupted. Stone spikes shot out in every direction, the entire room shaking from the force. But before Terra's attack could hit me—

I was already behind her.

I grabbed her wrist, twisted it behind her back, and pressed a glowing fist near her head. "Game over, little rock."

Terra grit her teeth, but she didn't struggle. She knew she lost.

I let go, stepping back and dusting off my hands. "Well, that was fun."

Y/N, arms still crossed, studied me carefully before smirking. "Alright, you win."

Rose groaned from the floor, holding her ribs. "Someone punch her in the face already."

Jinx coughed, lying on her back. "Seconded."

Terra just grumbled.

I just laughed, tossing my hair over my shoulder. "Told you. None of you can touch me."

But even as I boasted, even as I stood there victorious, my mind was still back home.

I wiped the sweat from my brow, the fabric of the towel rough against my skin. The training session was over. I had won—just like I always did. Just like I was supposed to.

Yet, I felt... off.

I needed a drink.

The airship's kitchen was empty when I arrived, the hum of the refrigeration unit the only sound filling the room. I grabbed a bottle of water, twisted off the cap, and took a deep gulp. The cool liquid barely did anything to settle the heat simmering inside me.

Without another thought, I flew out of the nearest open window, soaring into the open sky. The cold night air bit at my skin as I ascended, heading straight for one of the ship's antennas. My usual spot. My escape.

I landed gently, settling down with one knee bent, the other dangling off the edge. Below, the world stretched out in all directions, quiet and indifferent. The way I liked it.

And yet... her face crept into my mind again.

Starfire.

I clenched my jaw, tightening my grip around the water bottle in my hand.

Why did she always show up when I least wanted her to?

The plastic gave way under my fingers, crushing inwards with a sharp crinkle before water spilled over my gloves. I hardly noticed.

"I'll never forgive them."

No matter how much time passed, no matter how much distance I put between myself and Tamaran, the wound was still there. Deep. Raw. Festering.

It all went back to that night.

Flashback – The Night Before the Coronation

The sky burned with the glow of victory.

Tamaran had conquered another planet—well, terrorized by me was probably the more accurate word. Their rulers had been overthrown, their defenses shattered, and their people left cowering. Just another day in our proud history.

The rush of battle still buzzed in my veins as I returned to the castle, my boots clicking against the polished floor. I had done everything right. The perfect princess. The strongest warrior. The true heir to the throne.

And tomorrow, my birthright would finally be made official.

The thought brought a smirk to my face. But before heading to my chambers, I decided to make a little detour—to her room.

Teasing Starfire had become something of a hobby for me. No, not a hobby—a necessity. The girl needed to toughen up, and I was doing her a favor. And if I enjoyed the way she flustered under my words, if I got satisfaction from seeing her falter, well... that was just an added bonus.

I was nearly at her door when I heard voices.

Starfire's.

And... Father's?

I froze, my hand inches from the door, my smirk fading as I pressed myself against the wall. I had learned long ago that listening first—then acting—was the smarter move.

Through the small crack in the doorway, I saw them.

Starfire sat on the edge of her bed, her long, ridiculous hair spilling over her shoulders. Our father sat beside her, one strong arm wrapped around her as though she were some fragile thing.

I rolled my eyes. Of course. They always coddled her. Always acted like she was so delicate.

I was about to leave when I heard something that made my blood run cold.

"Tomorrow, you will be crowned Queen of Tamaran."

The air in my lungs turned to stone.

I whipped my head back toward the crack in the door, my body going rigid.

What?

Father continued, his voice calm, certain.

"Tamaran has been ruled by strength for centuries. We have taken what we wanted, fought for dominance in the galaxy. But that time must end. Our people need more than power. They need wisdom. Kindness. A leader who can show them a different way."

No. No, no, no.

"That is why I have chosen you, Starfire."

I felt something inside me snap.

"The people adore you. They see you as a beacon of hope. Your kindness will heal the wounds of our past. You will be a Queen that Tamaran can truly be proud of."

My hands curled into fists, my nails digging into my palms so hard I nearly drew blood.

I had heard enough.

I stormed into the room, my boots slamming against the floor. The force of my entrance made both of them jolt in surprise. Starfire's wide green eyes met mine, and I saw the guilt in them immediately.

She knew.

She knew what this meant for me.

She knew what was being taken from me.

Father stood, his face calm, unmoved. "Komand'r—"

"You traitorous, spineless, senile old fool!" I roared, cutting him off as I stormed toward him. My hands shook with fury, my body trembled with betrayal. "You would take what is mine and hand it to her?! Are you out of your mind?!"

He did not falter. "Komand'r, your heart is strong, but it is filled with rage. Your rule would bring only fear."

"My rule?! The rule I spent my whole life preparing for?! The rule that was my birthright?!"

I turned to Starfire, my vision going red.

"This is all your fault."

Starfire's lips parted, her brows furrowing. "Sister, I—"

"SHUT UP!" My voice cracked with the force of my rage.

My fists burned with energy, my very soul seething as I glared at her—this pathetic, weak, undeserving girl who had just stolen everything from me.

Back to the Present 

The memory slammed into me like a tidal wave, dragging me under until I couldn't breathe.

I shot up from my sitting position, fists clenched, my entire body burning with anger. My chest rose and fell in ragged breaths as my pulse pounded in my ears.

My grip tightened, and before I even realized it, I let out a furious, guttural scream, hurling my crushed water bottle into the sky. It disappeared into the void, lost in the darkness.

I panted, my throat raw, my limbs shaking.

I thought I had buried it. I thought I had moved on.

But the truth was plain.

I would never forgive them.

Not my father.

Not the people of Tamaran.

And especially not her.

. . .

My fingers twitched instinctively as I caught something mid-air without thinking. Opening my palm, I found myself gripping one of Y/N's X-Blades.

I blinked, then looked down.

There he was, standing below with his arms crossed, tilting his head as he waved me down with that ever-present mix of curiosity and amusement.

I rolled my eyes but obeyed, floating down effortlessly before landing in front of him.

. . .

Y/N's POV 

As soon as she touched the ground, I gave her a once-over. "You good?"

Blackfire tilted her head slightly. "What, worried about me?"

"Well, when someone lets out a battle cry loud enough to shake the damn ship, yeah, kinda hard not to notice."

She smirked but didn't deny it. Instead, she shrugged. "Just reminiscing."

That wasn't a real answer. Not from her.

I raised an eyebrow. "Uh-huh. And what exactly were you reminiscing about?"

Blackfire studied me for a moment before stepping closer. "You wanna know?"

I nodded, curious.

Her lips curled into a smirk. "Hold on tight."

Before I could even process what she meant, she grabbed my hand and yanked me off the ground.

"Oh, come on!" I groaned as we soared upward, her grip firm as she carried me toward the antenna. "We literally have an entire ship with actual floors, and you wanna have this conversation on a giant metal stick"

Blackfire laughed softly. "Like I said," she teased, adjusting her hold around my waist as she sat us down, "I'm not like most people."

I grumbled but focused on steadying myself. The view was... something else. Jump City stretched below us, lights shimmering like stars against the darkness.

But I barely had time to admire it before I noticed Blackfire staring at me.

"...What?" I asked.

She smirked. "Careful, Y/N. Stare too much, and you just might fall in love with the evil sister."

I scoffed. "Right, because romance with an intergalactic fugitive is exactly what I need in my life."

Her smirk widened. "Wouldn't be the worst decision you've made."

I rolled my eyes. "Alright, enough of that. What's actually bothering you?"

Her expression shifted, the teasing glint dimming slightly.

"...The night before the coronation," she started. "That's when I found out Starfire was going to be queen."

I stayed silent, waiting.

"I was angry," she admitted. "I felt betrayed." Her grip on the metal beneath her tightened. "I spent my whole life proving I was the strongest, the most capable. And for what? Just to be tossed aside for Starfire's... kindness?"

I frowned, watching as her hands curled into fists. I could see the faint glow of her starbolts flickering at her fingertips.

"I lost it," she continued, her voice lower now. "I attacked her."

I blinked. "Wait, you started—"

"It wasn't just a fight," she interrupted, her tone flat. "It was war. I wasn't holding back anymore. I didn't care about balance or fairness. I wanted her dead."

A chill ran down my spine.

"The castle was nearly leveled."

She paused.

Her voice came quieter this time.

"...And our father died. That was the day I became a fugitive"

I didn't say anything. Just let her speak.

"I didn't feel remorse," she admitted. "Not for him. My only regret... was that it wasn't Starfire who died instead."

The air between us felt heavy.

She looked at me then, waiting—expecting something. Maybe judgment. Maybe disgust.

But I just sat there, letting her words settle.

Blackfire might have been called the evil sister. But in this moment, she just looked... tired.

The weight of her confession lingered between us like an open wound. The air was thick with the kind of silence that demanded someone to say something—anything.

Then, just like that, Blackfire shattered the tension with a dramatic groan, throwing her arms up as if she were lamenting the entire universe.

"Ugh!" She rolled her head back before suddenly turning and wrapping her arms around me, pulling me against her. Her head found its place on my shoulder as she groaned again, this time more dramatically. "Just stay here and make me forget about everything else."

I blinked. "What—"

"Shhh," she hushed, tightening her grip.

...Well, I wasn't getting out of this one.

I sighed, deciding to just sit there. No point in struggling—Blackfire wasn't exactly the let go when asked nicely type.

After a moment, I finally spoke. "You know... sometimes I really can't tell if you're being sarcastic or serious."

She giggled, lifting her head just enough to look at me. "That's half the fun, Y/N."

Before I could respond, I felt her fingers start to casually walk up my chest.

Oh boy.

Her touch was slow, deliberate—like she knew exactly what she was doing. Her fingers trailed up to my jaw before she cupped my cheek, her eyes flickering with something unreadable yet very Blackfire.

With a soft, sultry tone, she whispered, "You did call me that night... the night we formed this little band of outlaws."

I stared at her, not sure where she was going with this.

"You gave me a new purpose," she murmured, her thumb brushing along my cheek. "And honestly, Y/N... that's hot."

"...Okay?" I said, unsure if that was supposed to be praise or a red flag.

She smirked. "You're a brutal leader, but you're fair. And that just happens to be my type in a partner."

Her face was getting closer now.

I felt her breath against my lips as she leaned in, her voice lowering to a near whisper.

"When this is over..." Her eyes burned into mine, her smirk growing. "I'm going to marry you, and we're going to rule the galaxy as tyrants and lovers."

I didn't move.

I just watched as Blackfire, with her signature mix of confidence and unpredictability, made her boldest claim yet.

Then, without missing a beat, she smirked and tilted her head.

"Now, Y/N... go ahead and guess if I'm serious or just messing with you."

I looked at Blackfire. Really looked at her.

It was almost laughable—the sheer difference between her and Starfire. One was a beacon of warmth and compassion, always striving to see the best in people. The other? A wildfire, chaotic and unpredictable, just waiting for the perfect chance to burn everything down.

And yet, as I sat here with her, feeling the weight of her body against mine, I knew something undeniable.

Blackfire wasn't just our strongest fighter.

She was also our biggest threat.

She was unpredictable—her loyalty could shift in a heartbeat if the perfect opportunity presented itself. I'd seen the signs. How she disappeared sometimes, going off to "cool down" by terrorizing some unlucky town in Metropolis or Gotham. It was who she was.

And there was only one way to keep her in check.

I had to become an even better villain than her.

Blackfire smirked, breaking the silence. "You know... you never got this kind of affection from Starfire."

I felt my jaw tighten.

She tilted her head, her smirk growing as she studied my reaction. "All those years of being there for her... chasing after her." She let out a mock sigh, shaking her head. "And where did it get you, hmm?"

I said nothing, but my grip on the metal surface beneath me tightened.

Blackfire's voice dropped into something almost sympathetic—but not quite. "Let's be real, Y/N. Starfire's probably already been in bed with some other hero by now."

That did it.

Something inside me snapped—not in a blind rage, but in a way that felt... dangerous.

Before I even realized it, my hands were on her waist, yanking her closer.

Blackfire let out a small gasp, her body pressing against mine as her arms instinctively wrapped around my neck. But instead of pulling away—instead of fighting back—she giggled.

"Oh?" she mused, her fingers toying with my hair. "Playing with danger now, are we?"

I looked her dead in the eyes. "I like danger."

And then I kissed her.

Hard.

Blackfire didn't hesitate. One of her hands immediately found its way to the back of my head, her fingers tangling in my hair as she pulled me deeper into the kiss. She was warm—scorching, even—but I didn't care.

When we finally pulled apart, she was panting softly, her breath warm against my lips.

"You really shouldn't be kissing an intergalactic fugitive," she murmured, her smirk still in place. "...Or a mass murderer like me."

I didn't give her the chance to say another word.

I kissed her again.

This time, I felt something shift.

Blackfire faltered.

She pulled away, her breath ragged, her pupils blown wide. Her cheeks were flushed—not from exertion, not from teasing, but from something... else.

She put her hands on my chest, as if trying to put some distance between us. "You... You should be giving this attention to the good sister," she mumbled. "Not the evil one."

I didn't hesitate.

"Shut up."

I yanked her back to my chest and kissed her much harder.

This time, she let out a muffled whimper against my lips.

This time, I felt it—the moment her walls finally crumbled.

And when I finally pulled back, I saw something I had never seen before.

Tears.

Her eyes were glassy, her breath shaky. She looked so conflicted, like she wanted to say something—but the words wouldn't come.

For the first time ever...

I had broken Blackfire's shell.

Because despite everything—despite accepting the title of the "evil sister"...

Deep down, she had always wondered what it would feel like to be treated like Starfire.

Blackfire sniffled, a choked giggle escaping her lips as fresh tears ran down her cheeks, streaking her mascara. It was a sight—the almighty, ruthless Blackfire... actually crying.

She wiped at her face with a shaky hand before sighing softly, laying her head against my chest. "First time I've cried in front of anyone..." she murmured, her voice barely above a whisper.

I didn't say anything. I just held her.

Her arms slowly coiled around my waist, clinging to me as she sighed again, this time with a little more ease. Then, as if realizing the tension in the air, she smirked lightly. "You know..." she mused, tilting her head up at me. "For a guy who's been single this whole time... you're a damn good kisser."

I scoffed, rolling my eyes. "Of course you'd find a way to turn this into a joke."

She giggled again, her fingers absentmindedly tracing the edges of my armor before whispering, "Thank you."

And then, she pulled me into a tight hug.

I returned it without hesitation.

But just as I let my guard down, Blackfire leaned in, her lips brushing against my ear as she whispered something that sent a chill down my spine.

"You just made the biggest mistake of your life, Y/N."

I felt my breath hitch.

Blackfire pulled back just enough to look me in the eyes, her smirk returning—but this time, there was something new behind it. Something deeper.

"Because from now on... the only one who has complete control of my heart... is you."

Her fingers trailed up my chest, stopping just below my collar as she whispered her final warning:

"Be ready for full responsibility."

...She thought I was scared?

I met her gaze without hesitation. "I'm not backing down from this, Blackfire." My voice was cool, certain. "And I never will."

She blinked, her smirk faltering for just a second.

Then, before either of us could say another word, we leaned in at the same time—our lips colliding in another deep, desperate kiss.

Blackfire's grip on my armor shook, but before she could pull away, I quickly took both of her hands in mine, tangling our fingers together as we melted into each other.

Her breath hitched, but she didn't resist.

Our tongues moved in sync, our bodies pressing closer, our eyes fluttering shut as we lost ourselves to the moment.

For this evening... there was no war. No Starfire. No past.

Just us.

By the time we finally pulled apart, we were both panting softly.

Blackfire licked her lips, staring at me through half-lidded eyes.

Then, she smirked again, her fingers tightening around mine. "Remember what I said earlier?" she asked, voice sultry.

I raised a brow. "Which part?"

She hovered up just slightly, her lips grazing my ear once more.

"I want you to make me forget everything completely."

My grip on her fingers tightened.

Blackfire pulled back, giving me one last knowing smirk before slowly descending back onto the airship's floor.

Then, without another word... she turned and walked inside.

I didn't need to think. I didn't need to hesitate.

I already knew exactly what was about to happen next.

I quickly jumped down, using my cape as a parachute to land smoothly as she gave me a look over her shoulder while swaying her hips hypnotically.

And as I followed her inside, one thought rang through my mind.

Starfire may have been the "Good Sister"...

But in my eyes?

Blackfire was the Better one.

To be continued. . .

(A/N: I think we all know what's going to happen next don't we dear viewers? I mean you can't blame me for making her the 1st woman to lay with Y/N.)