This was actually supposed to be the first fic in the collection, but I kept putting off posting it. Finally done with writing though! Special thanks to kitten-kin for the inspiration/motivation :P

Written for clampkink.

chasing eyes so blue

The dream is sharp, hot, vivid, blazing into his mind in the form of two long, lean bodies twined together, thin limbs tangled and swollen lips kissing. Kurogane isn't aware that it's a dream, not exactly, when he watches them together, golden hair and blue eyes, flushed erections grinding, identical faces panting and gasping and one leaning down to suck on the other.

It makes him hot, makes him full. He wants to join in but is content with watching, when they're writhing and twisting against one another, wet and leaking in a way he's all too familiar with. One is Fai and the other is Yuui, and maybe he should be embarrassed that he can't tell them apart right now, but he wants them both (guiltily) and he's watching, hungry, waiting for them to notice him.

They don't. That's fine. Kurogane feels the pressure in his groin and he's burning, wishing for some sort of release.

"—ro-sama," purrs a voice in his ear, warm fingers coming to wrap around him, lightly exploring.

Kurogane jerks awake with a snuffle, muscles twitching. It takes a while for him to come to terms with the fact that he does have one blond beside him, but not the other, and he feels a little guilty about it, for having enjoyed the dream so much. Fai doesn't have that sort of thing going on wih Yuui.

"Were you dreaming?" Fai asks, blue eyes hazy with sleep. He's running fingers along Kurogane, up his shaft and lingering on his tip, and Kurogane feels the remnants of his dream return in that touch. His breath hitches. Fai grins lazily at him, presses a kiss to his jaw. There's bits of sleep crusted around his eyes and his morning breath isn't exactly pleasant. "I want to know who you were dreaming about."

It shouldn't catch him by surprise, that question, because Fai asks the stupidest questions, but Kurogane can't help flushing anyway. It's not something he wants to talk about.

Golden eyebrows inch along their pale forehead; Fai's eyes sharpen. "Oh? Is Kuro-rin shy about his dream?"

"I'm not," he snaps, wonders how he can get out of this. Neither of the Fluorite twins are dumb; maybe that's why he secretly likes them so much.

"Did you dream about me?" Fai waggles his eyebrows, weaves his fingers around Kurogane's cock. "Or is it someone else? You don't blush unless it's a very naughty dream."

"I'm not blushing!" (Is he?) Kurogane considers batting Fai's hand away, but it's not worth the loss of touch.

The blond throws a leg across Kurogane's thighs. "You suck at lying, Kuro-tan. Tell me."

He sighs. He doesn't want to make a laughingstock of himself, but he knows better than to try and keep information from Fai when Fai is determined to get his hands on it. "I dreamed about you and your brother. Happy?"

Fai stares at him, his mouth falling open in a little 'o', and even his fingers still. It's probably the first time he's seen this, Kurogane acknowledges. "Yuui and me?"

"I said that, didn't I?"

Fai blinks, consideringly, not at all shocked or appalled or disgusted, and Kurogane has a moment to wonder if this was part of Fai's history, lumped with all the things he and Yuui don't share with anyone else. Fai doesn't even seem surprised to think of himself in a situation like that with his brother.

"Wait," Kurogane says, suddenly uncertain. He doesn't know why he hasn't seen it before, but Fai and Yuui are very close. Far too close, perhaps. "You and your brother—"

"Have a lot of history," Fai says shortly, pulling his hand up to splay it across Kurogane's chest. "I like you a lot, Kuro-sama. You know that."

Kurogane swallows, nods. "Your brother—"

"He likes you too." There isn't any falsehood in Fai's tone now, only a certainty that comes with speaking an indisputable truth. He looks away. "Yuui said not to tell you about it."

"What."

Fai shrugs, uncomfortable. "We weren't sure what you'd think of something unusual like that. You know, arrangements with three of us."

Kurogane growls and rubs his hand over his face, feeling every bit like a truck has just run him over. "Why didn't you say so earlier?"

"We thought you knew!"

"I thought he was just suspicious of me!" Kurogane sighs, shuts his eyes.

Fai laughs a little. "Yuui is also very good at hiding, Kuro-pipi."

"And you just neglected to tell me this very important detail?" Kurogane's getting the distinct feeling that they shouldn't just be arguing about this, but damn it, he deserves to know about something like this much earlier. How long has Yuui been watching him and Fai together?

Fai shrugs. His gaze skitters away. "I mentioned Yuui to you a few times, Kuro-dense, but you never seemed to get it, or agree."

Kurogane sighs. "And he's okay with just watching?"

Fai squirms a little here. "Well... We might have swapped places a time or two."

"What. Fuck. When?" It unnerves him that he's treated Yuui like Fai when they are two different people, and that he's touched Yuui without even knowing it. He doesn't remember a time when Fai's acted strange. Is Yuui just that good at pretending? "How the hell do you think that's a good idea?"

Fai's smile is nervous and tight now, and he's licking his lips nervously, pulling away. "Don't be mad at him, okay? Yuui is, Yuui likes you a lot too."

He sighs again, rubs his temples. "The two of you are idiots."

"But you won't rail at him?" Fai asks urgently, forehead crinkled.

"Does it not concern you that you fucking lied to me?" he growls, rolling over in bed to tower over the skinny blond idiot.

Fai gulps and looks away. "I. I felt sorry for Yuui," he says quietly. "He needs to be loved like that too, and I can't replicate it."

Kurogane breathes out slowly, eyes closed. "This is a damn mess. You're a fucking idiot."

And he's an idiot himself, for not realizing it in the first place. Kurogane is angry and bewildered and he wants to shake the hell out of someone.

Fai slithers out of bed, searching for his clothes on the floor. "Well, let me get Yuui over, and we can talk about it," he says brightly.

Kurogane glares, reaches over and catches the idiot by the arm before he can slip away. "This does not mean you're both running away. You're not getting the chance to. I'm coming with you."

Fai swallows. His eyes dart towards his phone on the bedside table, and Kurogane wonders if he's going to tell Yuui to start running first. He reaches over for the phone, grabs it, and Fai squeaks.

It's easy enough to flip it open and dial Yuui's number—Fai has him on speed dial. Yuui's voice is muzzy when he answers. "Fai?"

"You're an idiot," Kurogane says.

Behind him, Fai scrabbles for the phone, but Kurogane stands and holds it out of his reach. "Yuui, he knows!"

There's a muffled exclamation on the other end of the line. Kurogane curses and growls, "Don't you dare move from that spot. I'm coming over right now."

Yuui's protests are weak and incoherent, and Fai's is just as bad behind him. Kurogane wonders how the hell he's wound up in this mess. It isn't as if he can change anything about the past now. He's determined to set it right, though, and that's going to determine how they move forward.

"Come on," he tells Fai, who's paler than usual and very nervous. "Get dressed. I'm not waiting for you."

It doesn't take long for Kurogane to stalk down the cramped hallway to the apartment the twins share. Fai is protesting noisily behind him, shoved messily into his turtleneck and pants from last night, and Kurogane growls at him to shut up. They pause at the wooden door next to the stairwell.

He's barely got a knock in when the door swings open, another harried, nervous twin peeking out. "Good morning, Kurogane?"

"Yuui, I'm sorry," Fai wails behind him.

The blond in front of him swallows and tucks himself behind the door, making space so they can enter—but more importantly, so he can attempt to hide himself from Kurogane's glower.

"When the fuck were you going to tell me?" he growls, staring hard while Yuui rushes to close the door behind them. He busies himself with fussing over the locks, and snuffles the moment Kurogane grabs his elbow, tired of idiot twins dancing around him. (Yuui's arm is warm, and his wide eyes are just as deeply blue as Fai's.) "Well?"

"Um." Yuui shifts from one foot to another, eyes flickering towards Fai. Fai makes a face and clings on to Yuui's other arm.

"I told Kuro-tan not to scold you," he whines into Yuui's messily-buttoned shirt. "Please forgive me?"

They exchange a long look, gazes darting between themselves and Kurogane, and Kurogane huffs. "Well?"

"I. Um. I'm sorry?" Yuui licks his lips, and he's glancing towards the kitchen. "Why don't you have a seat... I'll get some coffee for us."

"No." Kurogane tightens his grip, even though coffee would help a lot right now.

Fai whines again. "I need coffee, Yuui."

Yuui looks between them again, uncertain, and Kurogane sighs deeply. "Make your coffee. We'll talk about this in the kitchen."

He releases that thin arm, stalks behind them while they huddle into each other. Why did this have to happen to him?

Kurogane remembers his dream and rubs his temples. They really shouldn't be harping on stupid details like who's right or who's lying, but. He needs to know. "How many times have you pretended to be the other idiot?"

"Two," Fai says, at the same time Yuui replies, "five."

The blonds look at each other in horror, sneaking identical looks of fear at Kurogane. He sighs. "When?"

Even without one of them preparing the coffee, and even without knowing who's wearing what, he can see the differences between them. Fai wears a look of utmost guilt and is utterly miserable, while Yuui holds his arms tight against himself, lips pressed together. They're both not looking at him. How, then, could he have mistaken Yuui for Fai?

"Mostly during the weekends," Yuui says quietly to the coffee pot. He's filling the machine with water, pulsing whole beans in the coffee grinder. "We smell different after work."

But the weekends are when he and Fai spend a long time lazing in bed. Kurogane has never noticed it before now, but Fai always joins him in his apartment on Friday nights, freshly showered. And they almost always have sex. It doesn't feel right that he's slept with Yuui and not known it. Kurogane swears, stalks closer to the twin pressed against the counter, who is leaning into his brother the closer Kurogane gets.

"Are you just that good at pretending?" he growls.

Yuui flashes a tight smile at him. "Not while I'm under stress, no."

It makes sense, then, that Yuui can act like the fool he isn't when he isn't worrying about Kurogane trying to find loopholes in his charade. He's spent enough time with Fai, has enough similarity in his genes to look and sound the same when he wants to.

Fai throws his arms around his twin, pouts at Kurogane. "I told you, Kuro-rin, don't threaten Yuui. Yuui doesn't mean any harm."

He glares stonily at the idiot he's dating. "What about me? You both have been playing me for a fool!"

Yuui tenses, and Fai presses closer to him. The coffee machine gurgles as it begins the drip process.

"I. I. I can go," Yuui says shakily. "Fai can... Fai can move in with you, Kurogane. I won't bother you."

"No," he snaps. "That isn't the point."

Yuui tries to shrink further, except he can't, and Kurogane's very tired of him trying to find somewhere to run. He reaches out, grabs the idiot by his arm, spins him around. Fai follows; both twins are staring at him and Kurogane still needs some sort of coffee, but that can wait. He looks at Yuui. "How the hell do you think you can pretend to be the other idiot and sleep with me and get away with it?"

"It's gone fine so far," Yuui says quietly. His cheeks darken with a dusting of red, and his eyes are hovering around Kurogane's chest, trying to find something to latch on.

"I don't want to sleep with you thinking you're him," he snaps, jerks his head towards Fai, who winces.

Yuui stares at him, open-mouthed. He glances at Fai again, squeezes his twin's hand. "Huh?"

"Kuro-pon had a dream this morning," Fai whispers into Yuui's ear. "About us."

Yuui's so tense that Kurogane thinks he might snap, but at that whisper, a fresh surge of red swells into his cheeks. "What?" he squeaks.

"I can still hear you," Kurogane mutters, embarrassed.

"Kuro-sama is interested in us. I think he wants to see."

"I didn't say that, you idiot!" And he's flushing now, too.

"Us? You mean. You don't mean." Yuui swallows. Again, there isn't any sort of horror or disgust on his face at the mention of them sleeping together. Kurogane is very rapidly forming his own conclusions.

"You've been together," he says. Both twins avoid his gaze, and it's telling enough. Somewhere at the back of his mind, Kurogane thinks he'll return to this subject later, but for now— "I'm still pissed as hell with the two of you."

"It's not like I was cheating on you with Yuui," Fai mumbles, sneaking a look at him. "We agreed to stop because you wouldn't like something like that going on while we're dating."

"What." Kurogane's mind stumbles. "And that helps how?"

Fai shrugs. "We thought... someday. Maybe. Maybe we'll convince you into it being the three of us or something."

He sighs and rubs his temples again. "Maybe we could've avoided this fucking mess if you just mentioned it earlier."

Yuui's eyes grow wide. "You mean— But Fai and I—"

"Three of us? I'm fine with that. What I'm not fine with is the two of you lying to me." He glares at them again, stupid (otherwise very lovable) idiots who are standing and staring at him like they can't believe their eyes. "Idiots."

They exchange a look, tentatively.

"We're sorry, Kurogane." Yuui purses his lips, glances briefly at him. Fai nods and mumbles his own "I'm sorry, Kuro-sama."

He breathes a sigh. "Fine. I'm still pissed. Just so you know."

Yuui nods, still a little wide-eyed. Fai glances between him and his brother, relaxing a little now that he doesn't seem to be in as much trouble. "Yuui likes sleeping with you, you know," he whispers.

Yuui yelps, his entire body seizing up. Kurogane splutters, watches as Yuui turns back to his coffee pot and fiddles with it, pulling mugs out of the kitchen cabinets. "The hell?"

"We talk. How else do you think I know?" Fai says, growing a little more confident because he thinks Kurogane isn't going to murder him sometime in the next ten minutes. "How else do you think Yuui knows what you like?"

Oh. His face is scorching and Kurogane isn't looking at Yuui now. It doesn't matter that they've slept together; he hasn't purposefully slept with Yuui and it feels strange that Yuui knows, when he's not really supposed to.

"Can we have coffee in bed?" Fai continues, seemingly unaffected. "Naked? All three of us?"

"No!" Kurogane snaps, and he's surprised when he hears Yuui echoing him. They exchange a flustered glance, return their eyes to somewhere other than each other.

Fai crows in delight. "I think you'll have a lot of fun, Kuro-pon! Yuui too."

This is a very awkward start to a relationship that's hopefully not as awkward, and Kurogane just really wants some coffee right now.

.

He sits them down in their living room after a rather awkward breakfast, stares at Yuui. There's no reason for the twins to try hiding anywhere, and Yuui is very reluctant to be alone in the same room as Kurogane. Which is why Fai is even here with them.

"Which times did you pretend to be your brother?" Kurogane demands, leaning forward. He isn't letting this go without trying to piece together when all this happened, and he's damn well going to try and figure if he'd noticed Yuui slipping in his charade. It couldn't all have been an act.

Yuui gulps, huddles closer to Fai. He's looking at the glass-topped coffee table, one hand clutching Fai's. "Um. Um. The first time was, um, right after the summer festival. Fai said he was coming down with a slight cold and he didn't want to pass it on to you."

Kurogane blinks, remembers the time Fai dropped by his apartment with a yukata and danced around in it. Two days later, he was sniffling like he was on the tail-end of a cold. Kurogane had chalked it up to being a very brief bout of illness. "The yukata. That was you?"

Yuui winces, nods. "We figured it must have been very convincing if you never noticed at all."

"What." Kurogane has fond memories of that yukata. He doesn't remember the details of the sex that occurred, only that it was good, and to think that had been Yuui instead of Fai is mind-blowing in itself. And he never realized it.

"The second time was when we went to the ice cream shop," Yuui continues, looking down at Fai's fingers linked with his. "I didn't think you'd notice when I got the green tea flavor. So I told you that 'Yuui wanted me to try it'. Which isn't too much of a stretch. Fai and I do that sometimes."

"At least you didn't make him try it," Fai adds. "I always do that."

Kurogane glares, but remembers feeling the bit of relief that there had not been accidental smears of ice cream on his mouth. "I remember that."

"The third was, um, on a school day. Fai and I completely swapped clothes and positions."

"You what."

Fai nods, grinning wide. "We thought it'd be interesting. Yuui was teaching his classes how to make a cake. Even I can do that. And I only had simple experiments that day for the kids."

"And we have a lot of the same students, so it's not like we don't recognize them," Yuui adds. "No one actually noticed."

"Until you went to my office and jumped Yuui, Kuro-horny." Fai grins and lays his head on Yuui's shoulder.

"That was you?" Kurogane is embarrassed now, that it's not only Fai who knows of that, but Yuui too, and that was supposed to be a secret. Yuui freezes on a grimace.

"Imagine my curiosity, when Yuui interrupted our online chat midway to say you'd dropped by, and then he went and disappeared for the next twenty minutes." Fai waggles his eyebrows. He's snickering like this is his birthday come early, and Kurogane is starting to rethink his decision not to murder him. "He didn't want to break the charade, and besides, I didn't mind. Yuui doesn't get pounced on in his office very often."

Yuui squawks and hides his face in his hands. (That had been some very rough sex.) "Um, the fourth time," he cuts in before Fai can get any further, "it was at your place. Um. I brought some sake."

Kurogane remembers the sake, too. He remembers splitting that bottle fairly equally. Turns out that both Fai and Yuui hold their liquor well; the sex that night had been mellow. Which is something Yuui deserves over any of that rough stuff.

"And the fifth was, um, two weeks ago. Ferris wheel ride?" Yuui's smile is strained; Kurogane remembers the way the blond had leaped into his chest and their carriage had rocked, and for a moment he'd been afraid that the little car would dislodge and plummet. "Yeah. That was scary."

"You didn't look afraid," he retorted.

"Not much to see when I'm looking out or at your shirt," Yuui mutters.

"And the last one," Fai whispers, nudging his twin. Yuui glances nervously at him, one of those looks that mean you can't be serious.

"What is it." Kurogane fears the worst, though he can't think of many things that are worse than this.

Yuui squirms uncomfortably in his seat, as if he's trying to bury himself in the couch. "Um, two nights ago. I... sneaked into your place when you were asleep. And, um, kissed you."

He'd thought he'd dreamed that. "You were pretending to be the other idiot?"

"Well. I was wearing Fai's things. Does that count?"

Kurogane heaves a huge sigh, rubs his temples. It's a lot to process, and he doesn't know what to do with the twins right now. "Doesn't really matter, does it?"

The twins share a look and shrug, each uncomfortable in their own way.

"Look, we'll start afresh. I need to rebuild my trust in you," he tells them. "No more sex for now." At Fai's whine, he glares. "It's partly your fault. Don't look at me like that."

But the twins agree, and that is hopefully the first step in the right direction.

Bonus:

"He likes when you lick his cock," Fai whispers in Yuui's ear. They're in bed, huddled together beneath the sheets, and Fai hears the way Yuui swallows noisily. "Just like what we do, but at the end of it, no teeth. Just tongue. He moans a lot."

"You don't— You're serious when you do this, aren't you?" Yuui whispers back, his breathing a little ragged.

Fai smiles slyly at him. "I'm serious like Yuui when I'm in bed with Kuro-pon. You don't have to pretend very much at all."

"Okay. I think I can do this."

"You will, Yuui." Fai snuggles closer, kisses his cheek. "Kuro-sama is delicious. Especially when he's inside."

Yuui groans and squirms. His breathing comes a little quicker. "This is not fair."

Fai grins at him, reaches over to pat where Yuui is trying not to touch. "Tomorrow. You'll see. You'll like it."

His twin whines louder, and Fai smiles. He thinks Yuui will make it through the visit with no problems at all.