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English
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Published:
2013-11-22
Completed:
2013-11-25
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14,015
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3/3
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Trialogue

Summary:

When Kurt and Blaine run into Sebastian three months before their wedding, an interesting discussion brings to light something that might be missing from their relationship. (Baby kinkster Klaine, Sebklaine D/s threesome)

Notes:

Warnings/Kinks: D/s (Dom!Kurt, sub!Blaine, sub!Sebastian), communication kink, brief effeminaphobic insult (it is called out and shut down), bitchy frenemy relationship, discussions of casual sexual relationship, threesome, blowjobs, deepthroating, minor comeplay, premature ejaculation, teasing, minor edging, spanking (punishment), blindfolding, light bondage, rimming, barebacking, fingering, marking, hyperflexible sex, mild body worship, light intergluteal, prostate stimulation (with vibrator), gagging (with cock), let me know if I missed anything.

Chapter Text

“So where were you for rehearsal last night?”

Elliott flops into the chair across from Kurt, almost upsetting his brand new piping hot cup of coffee, and throws him a look.

“Excuse me, Princess Hummel, can I please have a minute to my coffee before the interrogation?”

“Knock it off with the princess comments, Elliott,” Kurt snaps. “Santana gets away with it because I have seen the razorblades in her hair. But you cannot--since your hideously styled hair is kind of like a train wreck, in that it’s hard to look away, I’m perfectly aware that you do not have any hidden weaponry up there. So quit it.”

“Okay, fine, sorry. Now let’s put away the claws, I have gossip.”

Kurt sips his coffee and waves an imperious hand, happy when Blaine chuckles beside him before slipping his hand over Kurt’s.

“I didn’t come to rehearsal last night because I met a guy,” Elliott says. “You know that bar Dani told us about last week--”

“...you went to a gay bar named Twinko.

“Shut up, I got free drinks left and right. And the last one came from the guy who took me back to his swanky pad for a little one on one.”

“Okay, the eyebrow waggling isn’t going to make that phrase any better--”

“Kurt,” Blaine says, and Kurt sighs.

“Sorry, this is only my first cup and you’re getting an earful about how practice went without you after you’re done. Continue.”

“Thank you,” Elliott says. “Anyway, we hooked up, and just as I was getting ready to leave, he asked me for coffee.

Kurt’s eyebrows raise right up.

“Seriously?”

“Yeah. And I’m not stupid, I agreed. You wouldn’t believe the things he let me do--”

“I really don’t need to hear details,” Kurt interrupts. Elliott narrows his eyes at him.

“I’ve had to hear plenty of details when I spend the night at yours, Kurt, firsthand.

“So when are you meeting him?” Blaine asks.

Elliott glances down at his phone.

“Five minutes ago.”

“You invited him here?” Kurt asks. “He’s going to meet the friends?”

“No,” Elliott says. “When he gets his ass over here, I’ll be leaving your lovely company in the hopes of securing another date. He’s kind of a bitch, but I’m not looking for a boyfriend, and I’m not meeting him for his personality anyway--”

“We hope it goes well, Elliott,” Blaine says sincerely. “So when’s...um…”

“Sebastian.”

Kurt and Blaine instantly find each other’s eyes. It can’t be him, but the name rings so many bells (warning bells, most of them, though less than in days past) that it’s hard not to react.

“So when’s Sebastian actually getting here?”

“Well, he texted that he was on the train about ten minutes ago, and he lives like one stop away, so--”

“Hope I didn’t keep you waiting too long.”

Elliott looks up and throws the newcomer a coy smirk--instantly, Kurt and Blaine look to each other again, and Blaine turns to face the owner of the familiar voice.

“Hello, Sebastian,” he says.

Kurt turns in his seat, and there he is. He still looks like an unfortunate genetic experiment performed with Australian wildlife, but he does look good, in his own way. The hair’s less unfortunate, and he’s dressed nicely enough. No rugby polo with popped collar.

“Sebastian,” Kurt says coolly. Even if the guy ended up being less of a douche and even helped Blaine out with his proposal, Kurt doesn’t have to like him.

“Um--guys, could you not do the weird couple thing at--”

“It’s fine, El,” Sebastian says, looking down at the two with a little softening of his smirk. “I know these two. We go way back.”

“How are you Sebastian?” Blaine asks, ever the gentleman. Though he does look pleased to see him. “I didn’t know you’d come to New York.”

“Just arrived last week,” Sebastian says. “I did the backpacking thing after graduation--though I’m glad to say I didn’t have to stay in a single hostel--”

“Daddy funded the penthouse at every stop, I assume?” Kurt asks, far too pleasantly to be actually pleasant.

“Perks of being a trust fund baby,” Sebastian says with surprising equanimity. Kurt smiles genuinely at that.

“Perks indeed,” he says. What he wouldn’t give for some of Sebastian’s perks--that shirt is straight from a new line he’s been drooling over-- “So...I believe you and our good friend Elliott have a coffee date?”

“Well, if he knows you guys, I’m not gonna worry about you guys scaring him off,” Elliott chimes in. “There’s a fourth seat at the table if you’re interested. Or we can head to the bathroom…”

“Elliott, seriously?”

Elliott shrugs at Kurt and mouths what? Kurt shakes his head.

“I’ll grab my coffee and join you,” Sebastian says. “Though once the bathroom’s unoccupied…”

He winks at Elliott and heads into line, and Kurt immediately looks at Blaine.

“This is bizarre,” Blaine says, and Kurt smiles at him.

“Are you uncomfortable?”

“Not at all,” Blaine assures, smiling back. “He’s actually harmless now. He was happy enough to help with the proposal after all--”

“Wait, so you guys really do know each other,” Elliott says. “How far back?”

Kurt raises an eyebrow at Blaine, who shrugs, a clear indication that Kurt should tell the story if he wants. And then Sebastian arrives, and sits, and Kurt says, “Elliott wants to know how we know each other.”

Sebastian rolls his eyes.

“Go ahead, Hummel. I know you’re dying to dish the dirt.”

So he does.

--

Twenty minutes later, Elliott is on his second coffee and eyeing Sebastian.

“So you went after Blaine, went head to head with Kurt, tried to ruin their lives a few times, seriously injured Blaine, then wanted to be friends with him again, and then you were friends with everybody.”

“Pretty much,” Sebastian says. “Saw the error of my ways. Assault’s really not a great way to keep someone around.”

“But you haven’t seen each other since Blaine proposed, and now the wedding’s like...three months away.”

Sebastian smiles over at Blaine, and then just a little bit at Kurt.

“Congrats,” he says.

“If you give us your address, we’ll send you an invite,” Blaine offers. Kurt knows he means it, but Kurt’s still a little reluctant himself.

“Yes, you can come and drink all our champagne and try to sleep with the best man. I mean, he’s straight, but you can always try your luck.”

“I’d rather try my luck elsewhere, thanks,” Sebastian says, glancing over at Elliott, who sips his coffee with a certain air of seduction.

Elliott leans over just a bit and wraps his fingers around Sebastian’s wrist beneath the table--not as subtly as he seems to think, though.

“So there aren’t any ropes or chains in the bathroom, but I’m pretty sure that tie you’re wearing will do--”

“Whoa!” Kurt blurts. “I don’t really need to hear this.”

“Oh, don’t pretend you and your lovely husband-to-be aren’t just as kinky. I learned half of my knot tying from you, Kurt--”

“I tie knots for fashion,” Kurt says. Blaine is bright red next to him, practically chugging his coffee. “But thank you for the laugh, I don’t buy that Sebastian would let you tie him up anyway, he’s kind of a--”

He finally looks over, and Sebastian is, by his glare, about ten seconds from killing Kurt with whatever comes to hand. Kurt stops, and his eyes widen.

“Oh my god you did,” he says, and he’s not entirely sure if he’s finding this funny or terrifying. “Sebastian Smythe, giving up control? Color me intrigued.”

“Oh, can it,” Elliott says, as Sebastian glowers and starts to stand up. “Not like Blaine isn’t just as subby, he can barely stop himself from dropping to his knees whenever you so much as say his name.” He turns to Sebastian and stands with him. “Come on, I’ll make you feel better.”

“No need,” Sebastian says. “I’m just tired of hearing Hummel talk when I could be hearing you moan around my cock. Lead the way.”

Elliott grabs his wrist again, and they disappear. Blaine looks at Kurt nervously.

“Um, Kurt--”

“This whole day is fucked,” Kurt says simply. “Can you believe that? Sebastian Smythe, of all people, and apparently he’s into--whatever, stuff I don’t want to think about--”

“Um...yeah, who knew,” Blaine says, curiously flat, and drains his coffee. “We should get going, I still have class and you have work.”

Kurt glances at his phone and sighs at the time. “All right. Walk you to the station? I still have enough time to walk over and get in my costume before my actual shift if we head there now.”

“Kurt Hummel, on time for his shift?” Blaine teases gently, threading their fingers together. “You’ll give someone a heart attack.”

“Mmm, I live to shock people.”

--

That night, Blaine curls into Kurt’s side in bed just as Kurt’s shutting the light off.

“Oh, hello,” Kurt says. Usually Kurt makes the first move to cuddle, being harder to please in the positioning of their limbs, but Blaine clings right to him and buries his face in Kurt’s neck.

“Kurt, I need to tell you something.”

Kurt tenses up from head to toe, a slightly sick chill running through his suddenly-empty chest.

“What?”

“It’s--nothing bad, per se,” Blaine says, and Kurt relaxes a little--but still, what would he need to cling and hide in the dark for? “Um...do you remember our coffee this morning? With...with Elliott and Sebastian?”

“Yes,” Kurt says carefully. “I believe my memory is still fresh. What about it?”

“Um...did you mean...when you said that you--that you didn’t want to talk about...that stuff?”

Kurt wracks his brain.

“Remind me what stuff.”

“Um...you know, when Elliott said Sebastian liked to be...um…”

“Tied up?” Kurt says, the memory coming to him. “Honey, are you asking me to...to tie you up?”

“No!” Blaine says. “Um...just...want to discuss it, I guess. Um. It’s kind of...more than that. But I promise I’m not pressuring you for anything you don’t want, if you don’t want to think about it, we’ll drop it right now and I’ll never bring it up again--”

“Shhh,” Kurt soothes, rubbing his hands over Blaine’s back. “I mainly didn’t want to think about them doing anything. And it’s not like we haven’t experimented before anyway--”

“I know, I just mean…” Blaine sighs, and kisses Kurt’s throat. “I don’t want you to take this the wrong way, Kurt, but we still play it pretty safe. And I know...I mean...I think that if you were open to it, there are things I’d like to...um...explore.”

Kurt reaches over and turns the light on. This is something he needs to see Blaine’s face for, he can’t keep trying to guess at what Blaine’s face is doing, because it gives Kurt so much on what he’s really feeling. So he sits up, and Blaine does too, and Kurt grabs his hands gently.

“Blaine, just tell me,” Kurt says. “I promise not to freak out or make a face or tell you you’re gross.”

Blaine sighs, and his eyes look suspiciously wet with relief when Kurt says that. He rubs Blaine’s hands with his thumbs--has this really been something weighing on him? What could he possibly want to say that’s so important to him about--about this stuff?

“Look, Kurt, there are...um...I guess what I’m trying to say is, there’s a certain…way...that people can be together. And it’s not even just sexual, it’s like...a whole lifestyle. And--”

“Blaine,” Kurt interrupts softly, the lightbulb going on in his head. “Are you talking about BDSM?”

Blaine blushes, and sighs deeply, and nods, looking embarrassed.

“Contrary to popular belief, I do know what you’re talking about, Blaine,” Kurt says wryly. “Not only have we actually done stuff that could be categorized that way, but I also have a ton of wardrobe items that I had to buy from dubious websites. I’m not innocent--”

“No, I know you’re not, of course,” Blaine says. “I mean, I of all people--I just...um...it’s kind of...the non-sexual part...well...the...the whole package, I guess. That...that I do like. Um. Elliott was kind of right--I really do...want to kneel for you, sometimes.”

Kurt tilts his head at Blaine.

“So...you want me to...to Dominate you?”

Blaine’s breath hitches, and he nods, blinking rapidly. Kurt smiles at him--well, smirks at him. He can’t deny that they have used his knots for more than fashion before, but they haven’t gone much beyond a little bit of light bondage. There’s never been any exchange of power before. They’ve always been on equal ground.

He lets Blaine’s hands go and rubs up his thighs instead, kneeling up to look at him from above. Blaine melts, eyes closing as he gasps happily.

“I think we can look into it,” Kurt murmurs, kissing Blaine’s temple. And then, with a gentle nudge, he pushes Blaine onto his back and drapes over him, kissing at his neck and stroking his hands down Blaine’s sides. “What sort of things do you want?”

Blaine’s breathing has gone funny, but he lets himself lay there for Kurt to devour as he starts to tremor out low babblings.

“Want--want to kneel for you,” he says. “Want you to make me kneel...the way you like, want you to make me, want you to make me wait to come and just do stuff for you. Want--oh, want you to take control, just order me around, make me do whatever you want. Want you to mark me, come all over me, want--want you to spank me, punish me when I do stuff wrong, want you to make it impossible for me to obey just so you can punish me--”

Kurt’s hand finally finds Blaine’s cock, slipping under his pajama pants and stroking him hard as he listens, breathing heavily between suckling on Blaine’s neck and shoulder.

“What else?” he asks, definitely interested, biting down just a little on Blaine’s collarbone. It always makes him buck up, and it doesn’t fail him this time. Blaine practically throws him off with how hard he arches, moaning loudly.

“Want--want you to tie me up and--and tease me,” Blaine says. “Want you to make me want you so bad I can’t--I can’t stand it. Like--you remember that dance you did with Elliott, with the--”

“--mmhm, I could do that--”

Unh, Kurt, want--want that too,” Blaine admits, face heavily flushed as he clenches his eyes shut, and Kurt looks at him closely--he’s about to come, but there’s something more--Blaine is hiding something, reluctant to say--

Kurt slows his hand to a crawl, and Blaine protests with a whine, scrabbling at Kurt’s biceps.

“No, Kurt--”

“Tell me what you’re thinking about,” Kurt says firmly, and Blaine gasps and god he’s so beautiful like this, desperate and wrecked--

“Want--want to see you with--um...someone else, want--want to watch you, want--maybe--want a threesome? Oh god, not like a lot just once just--oh god, don’t be mad--”

“I’m not mad,” Kurt says simply, speeding his hand again, and Blaine sobs his thanks and thrusts up into Kurt’s hand, nails biting into Kurt’s arms. Kurt watches him fall apart, and he takes a deep breath just as the lines on Blaine’s face tense and deepen right before the big moment.

“So you want to watch me fuck someone?”

Blaine comes, biting his lip hard to keep quiet, and Kurt groans and sucks on his throat, right over his adam’s apple, and Blaine twitches with every pull of his lips and teeth, body jerking as he spills all over the inside of his pants.

“Oh, god,” Blaine whispers. “Um--wow. That was--”

Kurt hums, pleased with himself, and removes his hand, kissing Blaine sweetly.

“If you want,” Kurt says, “I can...do some research, and we can look into this further.” Blaine’s face lights up, barely contained hope and happiness, and Kurt shrugs. “I want to make you happy, Blaine. If you want to try something new, we’ll try something new.”

“God, Kurt,” Blaine laughs, surging up to kiss him, pushing him onto his back. “You don’t know what this means to me.”

He starts kissing down Kurt’s bare chest, and Kurt knows exactly where this is headed.

“Oh, I think you can show me,” he teases breathlessly, and Blaine snickers into his belly before shoving his pants down, heading right where Kurt wants him to.

“You know, I think I can,” he says, and then Kurt loses any response he might have had as Blaine swallows him down.

--

“We need to talk.”

Elliott looks up from his customary spot on the floor, looking vaguely alarmed.

“What did I do?” he asks, and Kurt shakes his head.

“Nothing, actually,” Kurt replies. Elliott raises an eyebrow and Kurt smirks. “I know, I was just as surprised. No, I want to talk to you about Blaine.”

Elliott instantly enters “friend mode,” crossing his legs and facing Kurt as he sits on his Cadillac chair.

“Is something wrong?” he asks.

Kurt shakes his head.

“No, thankfully. But...we have been talking, lately, and there’s something I want to ask you about. If you can possibly keep your mouth shut about it outside of the two of us.”

Elliott makes a little cross over his heart, smiling, and Kurt smiles back.

“Appreciated,” he says. He sighs. “It’s...okay, you remember when you had Sebastian for coffee with us? And...and you mentioned he was a--a sub.”

Elliott cocks his head at Kurt and smiles knowingly.

“Mmhm. Go on.”

“Oh, shut up,” Kurt says easily, toeing Elliott’s leg. Elliott laughs, and Kurt knows this was a good time to talk--when they’re just friends, not competing or bitching at each other. “Blaine wants...to do that sort of thing. And I’ve done my research, but I’m not totally sure how to proceed with it.”

“And you want my advice?”

Kurt nods. Elliott relaxes, leaning back on his hands, chewing his lip as he considers.

“Well, honestly, I’m not really into it all the way,” Elliott admits. “I only did it because Sebastian was into it. Not that it’s not fun,” he amends, “but not really my scene.”

Kurt groans and sinks back into the chair.

“Great,” he sneers. “Now I’m going to have to ask Santana--”

“Noo, don’t do that,” Elliott says. “Why don’t you just ask Sebastian?”

Kurt grimaces, eyeing Elliott suspiciously.

“Okay, there are so many problems with that. First of which is, aren’t you two still fucking?”

“Occasionally,” Elliott says. “I mean, we had our second and third rounds so far, and we have plans for round four--”

“I rest my case.”

“We’re not dating,” Elliott insists. “We’re just fucking. I don’t want a boyfriend right now. Pretty sure Sebastian would make the worst boyfriend ever, anyway.”

“Can’t disagree with that.”

“Look, do you really still hate him?” Elliott asks. “Blaine seems pretty sure he’s changed, they’re like Facebook friends and everything--”

“Blaine is the nicest guy on the planet,” Kurt says. “He’s a lot more forgiving than I am.”

“Well, he hasn’t been going after your man. Helped your man get you back, from what I’ve heard. Saw the error of his ways and all that. And it’s not like you have to like the guy--”

“No, I just have to trust him with intimate details of my relationship with a guy he once swore to steal from me.”

“Kurt, it’s been years,” Elliott points out. “He hasn’t done anything in the meantime, has he?”

“No,” Kurt allows. “That doesn’t mean I trust him.”

“Well, whatever,” Elliott says. “I’m sure the guy would talk to you, anyway. Not like he and I talk much when we’re together, but the pillow talk has included you a few times, and I’m pretty sure he at least respects you.”

“I highly doubt that.”

“Whatever,” Elliott says again. “Take your chances with Santana, then. But if I happen to come across porn that stars the two of you as a consequence of trusting her, I’m totally burning it to a CD and taking it with me everywhere.”

Kurt kicks Elliott that time, and Elliott rolls away laughing.

Goddamnit. He’s going to have to talk to Sebastian if he wants any decent information, isn’t he.

--

To Sebastian: It’s Kurt, and I got your number from Blaine’s phone. I’d like to have a word with you.

From Sebastian: About what?

To Sebastian: Believe it or not, I need advice.

From Sebastian: Oh this should be good. Coffee shop at 4?

To Sebastian: I get off shift at five. Drop by the diner.

From Sebastian: Ah, the working class

To Sebastian: If you shut up I’ll let you have a free slice of pie

From Sebastian: No thanks sweetheart, but I will take a beer

To Sebastian: Fine. Five.

From Sebastian: I’ll be there

--