#supercorptober2023

It’s a testament to her body’s exhaustion that, despite the urgency, Kara manages to fall asleep. She jolts awake to the sound of cannonballs exploding in her ears, the echoes rattling around in her skull. Her superhearing is out of whack from the sleep or the alcohol or both and nearby noise is amplified a thousandfold. The resounding knock at her door sounds more like a battering ram than a fist.

“Kara?” Lena’s voice drifts through the apartment and all other noise seems to melt away. The soothing effect is immediate. Kara’s heart slides back down her throat and thumps in relief. She sags into her pillow with a sigh before she remembers the fact that Lena is visiting her at three in the morning.

Kara superspeeds to the entryway. She just barely reminds herself to touch down on the floor before unlocking the deadbolt.

“Lena!” Kara whips her door open. She’s prepared for the whole range of human emotion, perhaps some tears or sobs or panic or any external sign of distress.

Instead Lena greets her with pursed lips (puckered in that distracting way that accentuates the crisp line of her jaw), a tilted head, and brassy raise of her eyebrow. Lena looks as beautiful as ever in the middle of the night, but she certainly does not appear distressed.

She gives Kara an undisguised once-over.

“Hello, Supergirl,” Lena deadpans.

All the oxygen leaves the room. Kara’s anatomy doesn’t require much of it, but she still feels like she’s choking on the lack of air. Her eyes bug out and she momentarily loses all cognitive function as her half-drunk system begins a hard reboot into this new reality where apparently Lena now knows her secret identity. The corner of Lena’s mouth twitches victoriously and somehow that is what kicks Kara back to the land of the living.

Without so much as a warning, she snags Lena by the wrist and yanks her bodily into the apartment. It’s a whole miracle Kara doesn’t slam the door off its hinges as Lena stumbles past the threshold.

“Heh—Supergi—that’s funny—what, uh.” Kara squeaks, sounding totally normal. She whirls around to face her friend with a manic laugh and round, wild eyes, “W-what are you talking about?”

Alex teases Kara relentlessly for her inability to play it cool. As she scratches the back of her own neck only to realize that her hair is down and her glasses are sitting uselessly on her nightstand, then completely misses the wall she intended to lean against and surreptitiously floats to keep her balance, Kara admits that her sister may be onto something.

“Kara, please.” Lena’s eyebrow lifts so high that her forehead wrinkles to accommodate it. “Don’t insult me.”

She opens her mouth to speak but something about the way Lena’s regarding her—resolute and impatient, like she’s just waiting for Kara to catch up so they can move on— makes her snap her jaw shut. Kara abandons her remaining denial with a long exhale.

She can’t help but cling to a thread or plausible deniability though.

“What, um.” Kara clears her throat. “What makes you think that I’m—” her voice cracks on the words, so foreign to her in this context— “that I’m Supergirl?”

Instead of answering, Lena raises an unimpressed eyebrow. Wordlessly, she turns on her heel and heads for Kara’s coffee table. Puzzled, the superhero follows. She just about combusts when Lena flicks on the television.

There, in what must have been filmed by a cell-phone, is Supergirl, twirling through the air suitless and cape-less—wearing nothing save for a matching sports bra and boxers. Kara’s jaw unhinges. She thinks her eyes hurt from how wide they’ve gotten. Supergirl’s hair is blowing freely in the breeze and she looks absolutely delighted as she corkscrews aimlessly above the city, half-naked and carefree.

Kara watches in horror as the video zooms in shamelessly on her butt. (Rao damn The Fruit for stuffing their mobile devices with such capable cameras.) This, mortifyingly, is precisely where Lena chooses to pause the coverage. She clicks the remote, freezing the frame on a screenful of Kara’s backside, and points an elegant but accusatory finger at the blown-up image of Kara’s favorite underwear.

It’s not just any old set of underwear. These ones are indescribably soft and comfortable. They fit just right, snug in all the right places, and they are adorned with a bizarrely adorable pattern of cartoon potstickers, puppies, and chopsticks. Most precious of all, they were a gift from one Lena Luthor last Christmas.

Kara ventures a shifty glance at the CEO, whose eyebrow is still quirked expectantly.

Stupidly, Kara blurts the first thing occurs to her. “That could be anyone.”

A second eyebrow climbs to match the first, shifting Lena’s expression from confident to incredulous in a single movement.

“I—I mean,” the superhero stammers, “it’s a really cute pattern a-and maybe Supergirl got herself the same set you bought me.”

Lena’s eyes close slowly, patiently and she shakes her head. Pinching the bridge of her nose, she mutters, “I don’t see how that’s possible.”

“Why not?” Kara demands, incomprehensibly committed to her flimsy excuse. “Lots of people like potstickers and puppies!”

“Because they are custom, Kara.” Lena’s head tilts sharply and she skewers the blonde with a pointed look. “I had them custom-made for your gift.”

“Oh.” Kara blinks. “You did?” Her voice ticks up at the end, betraying how oddly touched she feels at the gesture.

Lena appears exhausted but at least somewhat amused now. “Yes. Did you think I happened to fortuitously stumble upon the exact combination of all your favorite things printed on the exact type of undergarment you happen to favor?”

“Um… yes?” Kara shrugs even as the feeble defense crumbles around her. “You can find anything on the internet nowadays.”

Lena sighs. “Kara.” The super’s eyes lock on hers and Lena deliberately drags her green gaze down Kara’s front and slowly back up.

The hint of heat in Lena’s eyes isn’t lost on the Kryptonian, so her face is already two shades pinker than normal when she follows Lena’s stare down her own body.

Her cheeks flame up fully at the visual reminder that she is in fact still wearing the offending undergarments and precious little else.

“Oh.” Kara swallows. She is fully on display for Lena—not only mostly undressed, which induces its own type of stirrings in her belly, but also in clothes unmistakably identical to the superhero frozen on the screen. It’s four coincidences too many.

“Oh,” Lena parrots, nodding once.

Kara’s arms cross instinctively over her bare stomach. She’s ashamed. Not of her body, but of attempting to keep up such a charade without a lick of self-awareness. Mostly, she’s ashamed of hiding the truth from the person with whom she’d most wanted to share it.

Frankly, it’s a monumental relief to be unshackled from her secret. Without the burden of her identity, Kara can truly give Lena her full self, share all the bits and pieces of her that have sat leaden and unspoken on the tip of her tongue for months. Now that Kara has the liberty to be well and truly honest, maybe she can finally entertain the budding intimacy and extra warmth that’s been building around her best friend. She’s never felt quite so enthralled to be the focus of someone’s gaze before and maybe if—

Kara shakes her head, clearing away the cobwebs of hope. There’s a very different reality to be faced right now.

Casting an anxious glance at her feet, Kara flexes her toes and reaches for the grounding sensation of the grain in the hardwood.

Kara swallows thickly, mind alight with all the wrong turns this revelation can take, all the covert ways her secret could have already poisoned their relationship beyond recovery.

“I’m so sorry,” she mumbles, forcing her voice to remain steady even as she collapses into a defeated heap on the couch.

After a few seconds of silence, she gathers all the courage in her rapidly accelerating heart and glances up for Lena’s reaction.

Once again her best friend surprises her. Lena doesn’t seem mad or hurt or resentful. She looks… perplexed, if not a little exasperated.

“What exactly are you apologizing for?” Lena asks slowly once their eyes lock.

Kara senses her own crinkle bunching between her eyebrows to match Lena’s. “For keeping this from you,” she answers dejectly.

Lena’s eyes widen and Kara rushes to justify herself. The explanation clambers out of her of its own accord, gathering momentum and volume like a snowball rolling downhill.

“I’ve been wanting to tell you so badly, Lena. For months! You’re one of the most important people in my life! I trust you. I–I can’t really explain it, but something about you has always made me feel safe. I just, I felt like I knew you from the moment we met. And that feeling hasn’t faded at all. In fact, it’s grown stronger. I think maybe it’s even become—”

Kara stops short of broaching that subject and launches up off the couch, beginning a proper maniacal pacing across her living room floor.

“You didn’t even need to but you went ahead and proved to me and Supergirl and everyone in the world that you are even more noble and good than I imagined. You are so incredible, Lena. Of everyone I love, you deserve to know this part of me. But—but this superhero thing is so complicated. There are all these rules with the DEO and it’s not always safe for the people that know my identity and—”

“Kara—”

“—and as much as I wanted to be completely open with you, I couldn’t risk you getting hurt. I can’t. I won’t. So then—”

“Kara, darling.” The endearment smashes sideways into Kara and brings her ramble to a skidding, screeching halt. “Stop talking.”

Dumbstruck, Kara does. She turns back to Lena and nearly suffocates at the fondness she finds shining back at her. It’s accompanied by a dash of amusement and that same exasperation from before, but the affection is there and it’s so warm that Kara’s cheeks heat up to match. How Lena can still look at her like that after what Kara’s kept from her is… it feels unfair.

“I’m really sorry Lena,” Kara insists quietly, this time staring directly into those striking windows of sea-glass green and willing her to see how acutely she means it.

“Don’t be.” Lena’s expression softens even further and Kara wonders if this is how it would feel to live life as a lava cake. Airy on the outside and melty on the inside. Warm and delicious all over. It’s nice. Maybe she can get Lena to eat her if—Kara blinks out of her daze. Okay so perhaps she is still a teensy, weensy bit tipsy.

Lena doesn’t seem to notice her brief departure because she adds very earnestly, “I understand why your identity needs safeguarding. I can’t imagine very many people know this about you.”

“No,” Kara agrees, eyes seeking the floor again.

“Frankly, I wouldn’t have expected you to reveal something so sensitive to someone like me.”

The self-deprecation in Lena’s tone is unacceptable. Kara is about to protest that she wanted to—would have if not for the magical influence of Alex’s good sense—when Lena shrugs.

“And we’ve only known one another for a year. There are bound to be some secrets.” The next part is whispered, as if Lena doesn’t mean for Kara to hear. “God knows I have some.”

“Wait—” Kara teeters closer, itching with that Lena-fueled curiosity that swims constantly through her veins.

Lena’s eyebrow twitches haughtily and she smiles, reaching out to pat Kara’s hand. “Matters for another time, darling.”

She wraps her fingers loosely around Kara’s and guides them both onto the couch. Kara, ostensibly still in her underwear, pulls a throw pillow into her lap.

Without warning, Lena resumes the video. The frozen widescreen snapshot of Kara’s behind shrinks away mercifully to the top corner of her TV, revealing a smirking newscaster barely keeping her laughter at bay. Her brown eyes dance as she describes Supergirl’s latest antics in excruciating detail to whichever unfortunate souls are watching at this time of the night.

“Why are we still watching this?” Kara mumbles, hugging the pillow to her chest. Lena remains placidly silent.

Just as Kara thinks her public shaming is complete, a new video overtakes the screen. This one is shot from a much better—or incriminating—angle. Namely, a news helicopter hovering at altitude, level with Supergirl as she floats in lazy spirals then flutters hundreds of feet down, playful and giggling, before shooting back up and starting again.

Kara really takes the cake when she stops mid-somersault and flashes the camera an unfocused wave and a dazzling smile. ‘Up, up and away,’ the half-naked superhero slurs. Then she proceeds to plunge straight out of the sky, giggling gleefully as she falls.

“Oh god,” Kara groans as the camera swings wildly to chase her back into the frame. It finally catches up to her as Kara’s trajectory is intercepted by a green-black blur. She and the blur disappear in a flash of red and the video gives way to the newscaster once more, speculating about the inexplicable nature of her behavior.

So that’s why J’onn had showed up to fly Supergirl home.

“I…” Is there kryptonite in the room or is she just burning up from sheer embarrassment? “I don’t remember doing that,” Kara whispers, quiet as a mouse.

Beside her, Lena snorts. Kara swivels to glare at her but the image of Lena stifling a laugh into the tips of her fingers is entirely too cute to hold a grudge against. She pouts instead.

Eventually the CEO regains her composure and asks, exceedingly gentle, “What do you remember?”

Kara’s features scrunch into a frown as she replays the last several hours in her head. It’s somewhat blurry, but there’s a chronological consistency to the snippets of clarity.

“It… it was my night off,” Kara begins. A picture of Alex’s rowdy laugh shimmers to life in her mind’s eye and she smiles. “Sister’s night.”

Lena nods, smiles just because Kara did and that—that’s really something. Her heart does a happy little flump. Then she remembers.

“That’s why I didn’t have my supersuit!” Kara snaps her fingers. “J’onn told us he had everything covered tonight. He said we should take the night to really unwind.”

Lena’s unimpressed little ah sets Kara into a guilty grimace. “I… don’t think this is what he meant he meant by unwind,” Kara admits.

“Probably not.” Lena agrees. It’s a gentle admonishment and a flat tease all in one and Kara is too busy thinking that Lena is miraculous to be at all bothered by the joke at her expense. “What did you two plan for sister’s night?”

“Well… Alex came over and we had a few drinks. I remember she brought some sort of alien punch or something. I don’t know what was in it but it was really yummy. I… got a little drunker than I meant to.”

Kara omits the part where she ignored Alex’s warning about the potency of said beverages because ‘I have a Kryptonian metabolism Alex. I’ll be fine.’

“Oh. So this…” Lena gestures vaguely in the direction of the television. It’s paused on another unflattering view from below and Kara wrinkles her nose. “Was alcohol-induced?”

“Yeah…” she admits, dragging out the word.

Lena raises an eyebrow. “And… voluntary?”

“Um. Yes.”

Lena regards her for a long moment, then releases a gargantuan breath. Her shoulders fall with it, settling almost one full inch below where they’d been twisted in tension since she arrived. “Well that’s a relief,” she exhales.

“It—it is?” Kara tilts her head.

“I thought you’d been poisoned.” Lena looks at her sharply and Kara swallows. “I was… concerned.”

The flash of vulnerability in her eyes is as close as Lena gets to chastising her, but Kara still feels it like a punch to the gut. It doesn’t take much work to put herself in Lena’s shoes, to imagine the sensation of the ground dropping out from underneath her when a slew of worst case scenarios take up residence in her brain. Combined with the realization that Supergirl’s erratic behavior is also her best friend’s, it might just warrant the frazzled and urgent messages in the middle of the night.

“I’m sorry,” Kara winces. “I promise I’m okay. Just a bit hungover, probably.” She pauses thoughtfully. “If it makes you feel any better, you weren’t entirely wrong.” Lena’s brow furrows and Kara grins dumbly, if only to inject a little levity into the moment. “Alcohol is pretty much poison. I just, you know, did the poisoning myself. I had a great time.”

There’s a stifled snort sound again and then Lena’s chuckling, loose at last and shaking her head fondly. Kara melts into the angelic sound, into the familiarity and affection twinkling within.

“So long as you’re okay,” Lena adds.

“I’m alright,” Kara reassures. She reaches for Lena’s hand and gives it a squeeze. “I promise.”

Keeping their hands joined, Lena tips her head curiously. “There’s just one thing I don’t understand.”

“Yeah?”

“If you and Alex were home—here, then why did you leave without your suit on?”

“Oh, uh...” Kara thinks for a moment. “We went out at some point. Alex convinced me to go to Al’s—the alien bar—to meet up with Maggie—which,” Kara bristles and sniffs loudly, “was extremely generous of me, considering it was sister’s night.”

She glances at Lena for validation but her best friend just blinks placidly and waits. Kara pauses to wonder if she’s causing any sort of distress with all of the alien information she’s tossing her way. After a few seconds of Kara studying her, Lena finally raises her eyebrows in question.

“Sorry,” Kara shakes her head. “Anyway. We went to the bar and had a couple more drinks. And then—this is where things get kind of fuzzy.” Kara blushes. “Alex left with Maggie, I think.”

“Alex left you at the bar alone? While you were clearly not sober?” Lena’s face screws into a glare of disapproval. “That doesn’t sound like Agent Danvers.”

Kara barks a laugh at the formal form of address. “No, it definitely doesn’t,” she concedes. “I don’t think she actually left me though… I remember being in a cab. And then… um. Not in a cab.”

“Did the taxi drop you off at home?”

“No?” Kara wracks her brain. “I don’t think so. I remember wandering around a park somewhere and realizing I was lost. I know the city so well from above but down here I… get a little turned around sometimes.”

Kara’s cheeks flush at the admission but Lena’s fingers flex around her hand encouragingly and she relaxes.

“Anyway, when I realized I was lost I figured it would be best if I just flew myself home.”

The logic of the moment comes rushing back all at once and Kara feels the tips of her ears go from pink to red to redder. Lena, genius that she is, puts it together rather quickly.

“But you didn’t have your suit.”

“Yeah…” Kara affirms through a dry mouth.

“So you…” Lena begins, encouraging Kara to finish. She’s too embarrassed to even try. After several moments of nothing, Lena rips off the bandaid. “So you undressed to avoid being recognized?”

There’s an inferno blazing somewhere in this room, Kara swears it. She nods, not daring to meet Lena’s eyes.

A minuscule giggle reaches her ears and she breaks.

“I—I didn’t have a choice!” Kara whines. “It was late, I was lost, and my phone was dead and I, I… didn’t know what else to do!”

“Oh dear. Good thing you’re invulnerable.” Lena chuckles. “It's okay, darling.”

“It’s not!” Kara glares over at the TV. “I thought I was being clever. I even folded my shirt and my jeans and hid them in a bush, out of sight and everything! I figured no one would recognize me if I was quick about getting home so I took off but then…”

Lena looks at her expectantly, every bit the generous friend trying to keep her laughter trapped behind her pursed lips.

“Flying felt so good.” Kara admits, contrite. “I’m always wearing that gosh-darned suit with the long sleeves and the tights and just—the warm air felt so nice on my skin. Like the night sky was hugging me hello.”

She’s pouting up a storm now. “I really didn’t expect it. And, well, I guess I was just having a really nice time and my flight home accidentally turned into….” She gestures half-heartedly to the TV. “That.”

“Oh honey.” Lena extends one arm and Kara doesn’t hesitate to dive under it, hiding her face in the comfort of Lena’s shoulder. “It’ll be alright. It’s just a minor PR snafu. You didn’t do anything wrong.

“Alex is gonna be so mad,” Kara grouses, burrowing towards the enticingly familiar scent emanating from Lena’s skin, just a few inches away.

“Perhaps,” Lena allows, rubbing up and down Kara’s arm. It helps soothe the panic that comes with the knowledge of her elder sister’s impending fury. “But you didn’t hurt anyone. And the risk to your identity seems exceedingly low. Who else knows what I gave you for Secret Santa last year?”

Kara thinks back to the holiday, to the warm glow in her apartment and the people she loves gathered to share smiles and stories and gifts. “Just the people that were there that day,” she answers. “Alex, my mom, James, and Winn. And you.”

The memory of Lena glowing alongside her family makes Kara hum happily and nuzzle a little closer. Lena’s arm tightens around Kara’s shoulders.

“And is there any risk of them putting the pieces together from this video?”

“Well, that’s not really a problem,” Kara sighs. “My family has always known. James knew before I even met him because he’s friends with Superman. And Winn is the only other person I’ve ever told.”

She freezes, nervous that the reminder of being kept in the dark might cause Lena to put some distance between them. It’s the last thing Kara wants, to hurt her best friend. Besides, she’d quite like to stay right where she is, a scant inch away from the soft skin of Lena’s collarbone.

“There you have it,” Lena soothes, mercifully unfazed by the news of others that knew before her. “This hiccup should wash away with the next news cycle.” Lena pauses, tenses a bit. “Unless…”

Kara wriggles, prompting her to continue. “Unless what?”

“Have you…” the CEO clears her throat and from this distance Kara can hear her swallow uncomfortably. “Have you shown anyone else?”

“Shown anyone what?”

“This, uh, particular outfit of yours?”

“Pshh, no.” Kara scoffs and shakes her head. The movement brings the cold tip of her nose into contact with the heavenly warmth of Lena’s skin. Kara attributes the slight shiver that runs through her friend’s body to the shock of temperature difference. “Why would I show anyone my underwear?”

When Lena grimaces, the muscles in her neck tighten and Kara instinctively tucks her head closer to smooth the tension away.

“Well,” Lena begins, sounding a bit strangled. Her voice is lower, somewhat shy, and Kara is distracted by the way it vibrates against her forehead when Lena speaks. “If you… perhaps… brought someone home with you.”

“When I invite guests over I don’t include my underwear drawer in the tour of the apartment, Lena. That’s silly.”

“No—that’s not what I—hmph.” Exasperated, Lena finally makes herself clear. “I’m asking if you’ve slept with anyone, Kara.”

The superhero jolts upright, squeaking in surprise. “What?”

Lena clenches her jaw and releases it, taking a fortifying breath. “Have you been intimate with anyone recently that might’ve seen this set of underwear?” Kara gapes like a fish out of water and Lena rolls her eyes as she spells it out, seeming oddly pained. “Could they possibly make the connection between Supergirl’s appearance tonight and your identity as Kara Danvers?”

“Oh,” Kara breathes, struggling to sit still under Lena’s scrutiny. She peels at the fraying edges of her throw pillow. “Um. No.”

“Okay.” It may be Kara’s imagination, but it almost looks like Lena heaves a sigh of relief. “You’re sure?”

“Yeah, I…” the corner of her mouth twitches. “There hasn’t been anyone. Not since Mon-El.”

Kara considers the nights she’s spent with people she loves instead, the extra time that not having a love interest has afforded her with Lena and feels quite at peace with this reality. She smiles. “So I guess we’re safe on that front.”

Lena smiles back, closed-mouthed but still dimpled, and Kara feels like a lava cake again.

“See? You have nothing to worry about,” the CEO assures.

“Except—can anyone trace the purchase back to you?” Kara asks suddenly. “You said it was a custom order, won’t… won’t people think that you’re Supergirl?!”

Lena bursts into laughter at the suggestion. She howls for seconds while Kara dissolves into a panic at the idea of people going after Lena, mistaking her for the drunk Kryptonian.

“Lena, this is serious,” Kara admonishes. Lena just keeps on laughing. “You could be seriously targeted! I need—I need to protect you. Someone could try to hurt you if they thought…” her wild ideas get the best of her, spiraling out of control at the mere suggestion of increased attempts on Lena’s life.

Kara spaces out, flicking rapidly from scenario to scenario about how best to protect her best friend from this type of exposure. Maybe Lena should move in with her, so Kara can keep her safe all the time. If they share a bed, Kara will know she’s protected even while unconscious. Lena maintains an office at Catco, so the workday is covered. What about bathroom breaks, would those be—

A warm palm smooths over Kara’s forearm and squeezes until her tailspin slows to a halt. “Kara, darling. Come back.”

Kara blinks forcefully once, twice, three times, and then she’s planted firmly in her living room, staring once more at the overwhelming wealth of fondness in light green eyes. Those eyes crinkle around a smile as soon as Kara fully returns to her surroundings.

“You needn’t worry about me,” Lena assures slowly. Kara wrinkles her brow and Lena explains. “I went to a store in person to place the order and made my purchases with cash. The payment isn’t traceable to my name and no one recognized me, I’m certain of it.”

Face pinched into a frown, Kara shakes her head. “Are you sure? I won’t take that risk with you, Lena.”

“I’m sure,” the CEO smiles again and it’s nearly dazzling enough to distract Kara from her panic-fueled worry storm. “I appreciate the concern, but I doubt anyone would believe that a Luthor even knows what a baseball cap is, let alone wears one.” Lena tilts her head thoughtfully. “For that matter, I doubt anyone would believe that a Luthor could secretly be Kryptonian, all things considered.”

Kara scowls at the indirect mention of Lex, but considers Lena’s logic. She’s right in the end—short of a credit card receipt with Lena’s name on it or video footage showing her obtaining the exact same garments Supergirl is wearing, it’d be nigh impossible to make the connection.

“Okay,” she finally relents. “Okay. So now all I have to worry about is Alex’s wrath.”

The thought brings another grimace to her face and she buries it into her throw pillow. Alex is going to be so mad.

“I think Alex will be fine once we talk it through with her,” Lena offers. The ‘we’ wraps around Kara like a blanket before Lena’s arms encircle her with a comfort that Kara’s powerless to resist. She drops the pillow in favor of scooting back into her previous position, nestled into the juncture of Lena’s neck and shoulder.

They sit in silence for a few minutes as Kara recovers from her shame. The lateness of the hour and the steady drum of Lena’s heart lull Kara into a dreamy, half-conscious state and before she’s fully aware of herself she asks, “Lena?”

“Hm?”

The low hum of Lena’s voice in the apartment shrouds Kara in calm and she instinctively adjusts so she can press her nose and mouth the source of that heavenly vibration. Lena gulps and Kara is too sleepy to think anything of it.

“You aren’t mad?”

“Mad?” Lena repeats. “Why?”

“You’re not mad that I didn’t tell you my secret?”

“No, darling, I’m not mad,” Lena mutters softly and places a gentle hand on the side of Kara’s head. “It’s your secret to tell. What matters to me is that you’re safe. That’s all.”

The Kryptonian smiles and snuggles close. “Well, I’m really glad that you know now. And that you still like me. There’s so much I wanna tell you.” She pouts. “No more secrets for us.”

“Of course I still like you.” Then, most miraculous of all, Lena drops a soft kiss to Kara’s forehead. “You’re lovely, Kara. Being Supergirl doesn’t change that.”

Kara hums contentedly and drowsily returns the kiss wherever she can reach. Which happens to be the exposed jut of Lena’s collarbone. She notices a shift immediately—Lena’s muscles sing with tautness and her heart rate skyrockets.

“Lena?”

“Mm?” Her response is slightly high-pitched this time, even if the rumble of it still rolls through Kara like thunder.

“Why is your heartbeat so fast?”

“What—how can you even—oh. Superhearing. Of course.”

“Mhm,” Kara smiles, wondering languidly if Lena can feel her grin even if she can’t see it, ‘cause of the way Kara’s mouth is smooshed against her neck. Lena smells really, really good.

“You smell really, really good.” Again, Lena’s heartbeat ratchets up a notch. Kara frowns.

“Lena, you need to calm down.” Kara speaks right up against the source of the hammering in her ears, feeling the corresponding pulse pound on her lips. “‘S very loud. That can’t be good for you.”

“I’m fine, Kara,” Lena squeaks. Kara has her doubts but forgets them immediately when Lena says, “Besides, I’m with Supergirl. I’m as safe as can be.”

“That’s right.” Kara grins then places another sleepy kiss directly over that drumbeat, aiming to soothe it. “Shhh, i zhao,” Kara murmurs at Lena’s pulse point. “Settle down. You’re safe. It’s sleep time now.”

The next thing she hears after a hitch in Lena’s breath is the rich sound of Lena’s chuckle. “Did you just speak Kryptonian to my heartbeat, Kara?”

“Mm, yeah.” She’s beyond sleepy, half her cognizance has already yielded to unconsciousness. “I can never sleep when it’s loud like that.”

“What do you mean never?”

“I always check on you, Lena,” Kara nuzzles. “If your heartbeat’s too loud, I get worried.”

“You… you listen for me?”

Kara frowns again. Somehow this is only making things louder. Won’t stop her from telling the truth though.

“‘Course I listen. You’re my person,” she declares with a huff and drapes an arm over Lena’s midriff. “I dunno what’s bothering you right now though. You said it yourself, you’re safe with me.”

Lena sucks in a breath and holds it. Kara knows because she can feel the rise of Lena’s chest under her cheek and the way Lena’s throat works beneath her mouth. Kara noses against her neck, willing Lena to keep breathing and relax. Eventually she does.

Lena’s sigh comes out slow and measured and finally, her heartbeat begins to slow. She leans her head overtop of Kara’s. “I suppose that’s true.”

“Mhm,” Kara agrees. “Quiet now though, ‘s time for bed.” Lena nods above her and Kara doesn’t even deign to consider that they’re both still half upright on the couch. She does, however, remember a passing comment from earlier in the night.

“Lena?”

“Yeah?”

“Will you tell me your secret, too?”

In the ensuing pause, Kara hears the slowing beat do a stutter step in Lena’s chest. She nuzzles into it and Lena sighs once more.

Then Kara feels the warmth of lips pressed to her temple and suddenly her own heart is mirroring the pattern of Lena’s, clamoring for more of that soft sweetness against her skin.

“I think you might already know,” Lena whispers into her hair.

With the scent of Lena in her lungs and the softness of her friend in her arms and around her, Kara thinks she does, too.

(Morning finds them in the same position hours later, curled against one another on the couch. Necks stiff and backs crooked, they startle awake to a pounding on the door and an unmistakably familiar grumbling on the other side.

“Kara, you’d better be in there! What the fuck happened last night?!”)

---

The next time Lena sees Kara is not long later, but it takes her a moment to realise it’s her because she has in fact changed costume. Lena has to take a breath before she makes her way towards Kara.

“I see you’ve changed,” Lena says, trying to keep her eyes from the distracting view of Kara’s now bare legs. She’s wearing a skirt, but it’s a short one.

“What do you think?” Kara asks, swinging the tennis racket she’s holding up to rest of her shoulder. She’s dressed all in white. White shirt, white skirt, white shoes, and even white sweat bands around her wrists and forehead. “Think I’d make a good tennis player?”

Lena has to take another breath, because this is a look she never expected to see on Kara, but one she knows will now be burned in her brain.

“I’m not sure, maybe we should play some time and find out?”

Kara’s eyes light up, which Lena is pretty sure is just the competitive nature in her.

“Deal.”

---

Lena spots the Scooby-Doo costume from across the room, the head towering over most people, and she doesn’t need to get closer to know that it’s Kara.

“Why are you dressed like a dog?” Lena asks when she does get closer. Because how can she stay away from Kara? Even if she does look a little ridiculous right now.

She’s drawing attention from other partygoers, clearly not used to people like Kara. But that’s the rich for you.

“I’m not just any dog, I’m Scooby-Doo.”

Lena rolls her eyes. “I know, because you made me watch both of those movies.”

“This was part of Alex’s bet, I think she’s trying to embarrass me.”

That sounds exactly like Alex. Lena presses her lips together, trying not to laugh. “I think you look cute,” Lena comments. “But I think you made a cute tennis player and a cute banana too.”

The costume hides half of Kara’s face, but Lena’s pretty sure Kara is blushing. Or maybe she’s just hot from the full body suit.

---

Lena hadn’t realised it was something she’d wanted to see until the next outfit Kara appears in is a Supergirl costume.

Kara looks incredible. She has a similar build to Supergirl, so from a distance, no one could be blamed for mistaking her for Supergirl.

Actually, close up, she wouldn’t blame someone for confusing the two either. The blonde hair definitely helps, so do the sharp blue eyes that Lena finds herself lost in thought about far too often.

“What brings you here tonight, Supergirl?” Lena asks, eyes dropping of their own accord. Lena knows Kara is quite muscly under her usual blouses and sweaters, but it’s something else seeing her in a suit like this. Lena’s pretty sure the suit isn’t padded, that it’s all Kara.

Another short skirt isn’t helping Lena’s attention either.

“A Luthor party is always a target, I thought I should stop by to make sure everything was ok,” Kara smiles.

Lena’s actually surprised the real Supergirl hasn’t stopped by, she usually does to any L-Corp event. Most times, just a visit from her is enough to deter any possible threats.

Lena smiles, still playing along. “Thank you, I appreciate it.”

“Anytime. I better check the perimeter, make sure there’s nothing I’ve missed. Have a good evening, Miss Luthor.”

“You too, Supergirl. Stay safe.”

Lena’s about to break character (though she’s technically playing herself) but she’s cut off when Kara floats off the ground and then disappears into the air, leaving a very surprised Lena in her wake.

---

Kara’s next costume is an angel, which goes well with Lena’s devil outfit (which consists of a black dress and horns on her head) but Lena can’t even admire that, not when her whole world has been rocked.

She wonders for a moment whether she’d just gotten the two confused, but there was no doubt in her mind before that she was talking to Kara.

Kara is Supergirl, and she’s not sure how she didn’t see it before, she’d even just thought about how similar they both look, and she still didn’t make the connection.

At least Kara’s hurried excuses to leave when they’re together make sense now but still, she’s smart, she should have figured it out.

Now here she is, not sure what to do with the information. Or she does. The answer is nothing, she’s not going to tell anyone. And she wants Kara to know she can trust her too.

(And part of her can’t help but wonder why Kara hasn’t told her yet. She thought they were friends. Thought they were best friends but it turns out Kara has been lying to her this whole time).

“Looks like you’ve won your carton of ice cream,” Lena says.

There’s no time like the present.

Kara frowns. “No, that’s only four.”

“No, that’s your fifth outfit.“ Lena holds up a fist, raising a finger as she counts each one. “Banana, dog, tennis player, angel and…”

Lena trails off, for a moment wondering if she should just keep quiet. But they’re alone near the food table, no one close enough to hear them. And she wants Kara to know that she knows.

Before Kara can cut in, Lena holds up her last finger. “And Supergirl makes five.”

Kara freezes, Lena can see her processing what she’s just said. Lena’s not sure what she’ll do if Kara denies it.

Kara glances around, voice quiet when she finally speaks. “How did you know it was me?”

Relief washes over Lena, she’s not sure what she would’ve done if Kara had denied it.

“The better question is, how did I not see it before? You don’t even wear a mask. But tonight I was watching the crowd, waiting for you to appear. I think I saw you before I realised what you were wearing.” Lena shakes her head. “I don’t know how I didn’t see it, you literally look the same.”

“Don’t beat yourself up, no one sees it.’

“But I’m your best friend, I should have known.”

“I think I should counter that with, you’re my best friend, and I’m sorry I didn’t tell you sooner.” Kara reaches out, takes Lena’s hand. “I promise, it was me and not you. I trust you, I just didn’t know how to tell you with all the history between you and Supergirl. Or you and me, I guess. I just didn’t want to risk losing you.”

Lena squeezes Kara’s hand. “You’re never going to lose me, I promise. But no more secrets, okay?”

Lena feels like a bit of a hypocrite asking that, when she’s hiding a secret herself. But baby steps, she can work up to telling Kara she’s in love with her another time.

“No more secrets,” Kara nods. “I promise. After the party, do you want to come over? I can tell you everything.”

Lena swallows down the emotion that rises in her throat. “I’d like that.”

The moment lingers and Lena finds herself caught in blue eyes she’s often distracted by.

She breaks the moment, she has to, before she does something stupid. “So, tell me, if Supergirl wasn’t your fifth costume, then what is it?”

“You’re just going to have to wait and see. I still need that fifth costume change because I cannot tell Alex one of them was Supergirl and that’s how you found out or she’d kill me. She already thinks I’m not careful enough, next she’ll make me wear a mask or something.”

Lena laughs. “Your secret is safe with me.” She pauses. “All of them.” Kara needs to know she won’t tell anyone either.