I don't know how this keeps happening.

Disclaimer: I don't own the characters. Obviously.

Warnings: uh. Hate sex. And probably grammatical errors because I don't have a beta.

Kurt hates him. Hates the way his lips stretch into a smirk over his perfectly straight teeth. Hates the sharp angles of his face that make him look positively dangerous. Hates that stupid freckle on his left cheek—Kurt's right—that sits directly in the middle. Hates how one of his eyebrows is different from the other and still manages to look endearing. Hates how thick and masculine his neck is and the other freckle that rests at the base of it. Hates the arrogant swagger of his walk, as if maybe he's too good for this world. Hates his tendency to always show up at the worst times possible, just to ruin his day. Hates that little sparkle of sadistic pleasure in his eyes when they're at each other's throats throwing particularly debilitating insults. Hates how strong his arms look folded against his chest. Hates how that brings attention to the way his shirt stretches taut over torso. Hates his uncanny ability to look completely at ease in any situation or setting.

He hates that he notices those things.

He hates how eager his hands are to map out the newly exposed skin when Sebastian's shirt is tossed to the floor. He's warm, smooth, and lean—but chiseled—beneath his fingers. He hates that too.

A coarse trail of dark hair starts beneath his belly button and thickens right before disappearing into his tight jeans. Kurt wants to follow it with his fingers, his lips, his tongue. Wants to taste the hint of salt from his sweat and the sweetness of his skin. Hates himself for wanting that. Hates Sebastian for making him want it.

Kurt has always prided himself on his strength and his willpower in difficult situations, but now he thinks maybe he just wasn't dealt the right ones, because he doesn't feel so strong faced with the temptation of Sebastian's half naked body in front of him. And he isn't obviously, but he can't seem to make himself care as he drops down to his knees at his rival's feet.

Sebastian is smirking down at him. Kurt hates that smirk, but he hates the button that refuses to come undone in his drunken haze so much more, so he ignores it and concentrates on the task at hand. He utters a triumphant "yes" when it pulls free, wasting no time to yank down the zipper and the heavy denim immediately afterwards.

His eyes meet tight, gray briefs where Sebastian's thick erection strains up against the fabric, begging for any contact. Kurt wastes no time mouthing over the bulge, teasing and pressing wet kisses over the clothed head of his cock. A large hand latches onto the back of his hair with a curse, forcing his face closer. But Kurt hates him, he wants him to suffer more than he wants Sebastian's dick in his mouth—which is a whole lot.

"Just do it, Hummel. Stop teasing me!" Kurt smirks at his pained plea and licks over the spot where his cock is leaking precome onto the briefs before closing his mouth over it.

There is a growl of impatience before Sebastian yanks Kurt's head away, pushes his underwear down his legs, and shoves Kurt's face at his full erection which now presses heavily up against his belly. Not part of his plan. "I fucking hate you, Smythe."

"I hate you too, now will you please put your mouth on my dick? I'm begging you." And Kurt kind of likes the thought of Sebastian begging, needy and hard and waiting for release. His tongue flicks out once fleeting, barely making contact and he looks up into green eyes mockingly.

"Say it again." Sebastian's eyes flash dangerously and his jaw clenches. He won't. "If you want me to suck you off, say it again." Kurt runs the tip of his tongue along his bottom lip, enjoying the way those eyes follow the action. His nostrils flare.

"Please," he growls.

"Please, what?"

"Please suck me off. Before my fucking dick falls off." Kurt figures that's as close to begging as he's going to get and wraps his hand around the base of his cock. He licks up the length of him, tonguing the vein until finally sinking his mouth over the tip. The fist in his hair tightens at the same time as Sebastian breathes a sigh of relief. Kurt's dick twitches in his jeans at the sound, bringing to his attention just how hard this whole encounter has made him. His zipper is pretty much cutting him in half and if his pants were tight before they're practically a second skin now.

Kurt's free hand reaches down to relieve himself of the constricting cloth as he takes Sebastian's cock all the way down to the hilt and swallows around him. "Shit!" And then he hums, smirking around the heavy appendage as Sebastian wails above him. "Let me fuck your mouth," he gasps. "Please." And Kurt's wants to tell him no because it's Sebastian and it would be revenge, but his mouth is otherwise occupied and he can't help but moan at the thought of Sebastian plunging into him. The vibration travels up Sebastian's length and he takes it as an invitation—which, regrettably, it is. There are two hands in his hair now, yanking him forwards to meet every one of Sebastian's thrusts and he can't resist anymore. His hand encloses his dick, fisting himself to the pace of the thrusts. Kurt's nose smashes repeatedly into his lower belly, it should hurt but he can only register the smell of sex, sweat, and man and the new ache inside him. His other hand travels down behind his balls and circles two fingers around his hole, it's dry but he doesn't care. He needs it. He winces as he presses the unlubricated digits into his ass, stretching the ring of muscle and enjoying the drag of them against it. Sebastian pounds into his throat fast and relentless, unmerciful like he wants it to hurt. He probably does, Kurt sort of wants it to. So he doesn't forget that this is Sebastian, that this is settling the score, that they hate each other with every fiber of their beings.

Kurt crooks his fingers, dragging them down. There it is. He keens around Sebastian's cock and then his mouth is suddenly empty, his jaw aches from the lack of it. He wants to feel the fullness, the weight of it on his tongue.

Sebastian stares down at him, the green of his eyes are darkened with lust and awe. But they aren't fixed on his face, but glued to the fingers buried in his ass. "Fuck, Hummel." Then he's being pulled to his feet by his hair. He hisses at the sting, and means to yell at him but Sebastian smashes their lips together, hard and bruising as their teeth clash painfully. Two firm hands grasp his ass, pulling him in so their dicks grind into each other. Sebastian's tongue thrusts into his mouth and strokes against Kurt's tongue, fighting for dominance. But Kurt won't have that. He meets each stroke and jab with his own and sucks Sebastian's bottom lip into his mouth, licks across it, then bites down. Hard.

Sebastian yelps, pulling away with a glare. "What was that for, asshole?"

Kurt glares right back. "Don't pull me around by my hair, you bastard." His hands slip beneath Kurt's jeans and underwear and push them down his ass.

"You're such a bitch, Hummel."

"And you're a conceited dick." Sebastian smirks down at him and rolls their bare erections together.

"I didn't hear you complaining about my dick a minute ago when I was fucking your face with it." Kurt has no answer for that because then Sebastian sucks a finger into his mouth and pulls it back dripping with spit. He smirks again as he grabs Kurt's ass cheeks, spreading them and pushing his slick finger into the tight heat. And fuck that feels better than his own fingers had felt before. Sebastian groans as he works his finger up to the third knuckle. "Shit, you're so fucking tight. You were already fingering yourself, how is that even possible? Please don't tell me you're a virgin."

Kurt tries to glare, tries to cut him with his sharp words but all that comes is a breathy moan as Sebastian presses another finger inside him. It's a little dry and it stings some with the unfamiliar thickness of his fingers but Kurt needs it. He presses back onto them, encouraging Sebastian to fuck them into him a little harder, a little faster. "Blaine prefers to bottom," he breathes. "Shit Sebastian, more please. Fuck."

"Look at you begging for it," he marvels, "You're telling me Blaine never takes advantage of that? Fuck Hummel, you have the worst gay face I've ever seen, but your ass is fucking fantastic. He's got to be the biggest idiot on the planet."

"Either shut the hell up and put your dick in me, or let me go find someone else who will."

"Are you this bossy with Blaine? I bet you are, I bet he likes it," he sneers, "He likes it when you tell him what to do. Just lays there while you fuck him into the mattress".

"Are you fucking Blaine right now or me? Because if you don't want—" Sebastian cuts him off with a third finger and a smirk when Kurt's eyes roll up into his head with a groan.

"So impatient. But you're so tight. You're going to feel so good wrapped around my dick, so hot." Sebastian purposely bypasses Kurt's prostate with everything thrust. He's not trying to make him feel good, just stretching him out, but Kurt still arches his back, pressing back against the fingers like his life depends on it. And he thinks maybe it does.

"I'm stretched, just fuck me. I'm stretched." Sebastian doesn't need any more reassurance. He doesn't really believe it's good enough yet, but his dick aches and Kurt's ass is so tight. He pushes Kurt against the wall and drops to the ground to locate his pants. He fumbles for a minute before he finds it and ah ha! Kurt is confused for a moment before he notices Sebastian cover himself with the condom. He coats himself with the minimal amount of lube, like he doesn't want this to be easy for Kurt. Like he still wants Kurt to still be able to feel him in the morning. Then he's back, lifting him off of the ground like he barely weighs a thing.

"Wrap your legs around me," he orders and Kurt doesn't hesitate for a moment. Sebastian's cock is hot and slick against his entrance, circling, teasing and then pressing against the ring of muscles. Kurt's head falls back against the wall, taking, feeling. Sebastian bottoms out and he feels so fucking full. But Sebastian doesn't give him any time to adjust after the initial pain and newness of it all before he pulls back and thrusts into Kurt's tight heat. "Shit, Kurt!"

Sebastian pounds into him, grazing his prostate just often enough to drive him crazy. Kurt wails, his nails digging into Sebastian's back as he tries to hold on to something, anything, because he's losing his grip on reality. And then he's thrusting down to meet him, clenching his muscles around Sebastian's cock because right now Sebastian is winning and if Kurt can only make him come first…

His hands are locked on Kurt's hips, using them a handles as he fucks into him mercilessly. His lips graze his smooth jaw to his earlobe which gets sucked into the hot cavern of Sebastian's mouth. And fuck if that isn't one of Kurt's hot spots. Teeth nip at sensitive skin and he bites his lip to hold back a moan.

"Ah-ah-ah. Don't hold it in; I want to hear you scream." Sebastian's breath teases over skin, raising goose bumps, and he hates it.

"Then you're going to have to do a lot better than that, Craigslist," he growls. Sebastian answers with a hard thrust that shakes the wall and causes his head to bang back against it.

"Back to name calling are we, Princess? And here I was thinking you were warming up to me." His voice is deceivingly soft, mocking against Kurt's skin before he licks a strip up the side of his neck and latches onto the skin beneath his jaw. Fucking bastard.

"Not even in your dreams, Smythe."

"What do you dream about, Hummel? In your dreams am I fucking your ass like this? Do you dream about my cock?" He bites down and Kurt knows there will be a mark there in the morning, just like the purpling skin of his hips. He doesn't know how he's going to hide it, but he can't bring himself to care because Blaine is never this rough with him. He loves Blaine, loves the intimacy, the devotion, but he loves heat, and fire, pain, and passion, and the fucking deep seeded hate.

"I dream of a partner who talks a little less and satisfies me a little more actually," he gasps. That was apparently the wrong thing to say because Sebastian's mouth turns down into a sneer.

"Oh, I'm not satisfying you?" His hands drop from his body and he has to tighten the grip of his legs to compensate. Sebastian pulls Kurt's hands from around his neck and bangs them into the wall above his head and holds them there by his wrist with one hand in a painfully tight grip. Then his other hand is traveling back to grasp Kurt's ankle before it's lifted and placed onto his shoulder, followed by the other. The new angle stretches him wide; Sebastian's cock is too big this way, splitting him apart, but in the best way. When he thrusts in this time, Kurt thinks it might kill him. Sebastian jackhammers into him, hits his prostate and bends his body in half. There is a fire deep in his belly, it coils low in his abdomen, building and Kurt needs to come. He needs it. He clenches around Sebastian's dick, milking it, hoping to bring him to an early finish. But Sebastian knows his game and nips sharply at Kurt's lip. "Fuck, look at you. Just taking it, just taking my cock. Does Blaine pleasure you the way I do?"

Kurt's dick is leaking precome and straining against his belly, and Sebastian's words aren't helping him. He tries to pull free of Sebastian's grip, tries to get one hand free so he can wrap it around himself and relieve the pressure but Sebastian isn't having any of that. "I need to come," he whimpers, "Please Sebastian, please." The sharp green eyes glint with sadistic amusement.

"Then come."

"I need—please touch me. Or let me touch myself. I need it!"

"No. You're going to come just like this. You're going to come from my dick alone. How does it feel Kurt, pounding into your tight, little asshole?"

"Fuck you, you stupid bastard!" he wails, fighting again to break free then rolling his pelvis forward to seek contact. But Sebastian secures his hips back against the wall as he thrusts into him again, nipping at his chin.

"God Kurt, I don't know how much longer I can take." He moans, throaty and deep and the sound is just enough to send Kurt over the edge. His dick jerks, sending strings of come over his and Sebastian's chests. His ass clenches tightly with his orgasm and with a final thrust, Sebastian comes hard into the latex with a shout.

They slump to ground; Sebastian's shrinking cock still buried inside the furnace of Kurt's ass. Kurt can't see to catch his breath, but it's okay because neither can Sebastian and Kurt is pretty sure he's never came so hard in his entire life. Sebastian's cock slips out and Kurt moan's into his chest at the sudden loss and emptiness he now feels. The other man rubs at Kurt's ass apologetically and apparently post-orgasm Sebastian is cuddly because his arm comes to wrap around Kurt's waist, stroking up and down his skin. He lets him. For a moment. Lets himself soak in the warmth and comfort of another body holding him. But it's all too domestic and he pulls himself free and begins to look for his clothes.

Sebastian reaches out after him, like he expects Kurt to latch onto to his hand to be pulled back into the embrace. "Where are you going?"

"Home. I have to get up early in the morning."

"Home," Sebastian deadpans.

"Yes. Home. Perhaps you've heard of it?"

"You're just going to leave, just like that."

"What did you think was going to happen? We were going to have loud, angry sex and then we were going to cuddle and live happily ever after?"

"No! But I didn't think you—you're such a fucking bitch."

"Whatever Smythe. I'm going home; I hope to never see you again." Kurt fastens his button and straightens his hair as best as he can before turning for the door.

"Home. To Blaine."

"Yes, as a matter of fact," he answers with a lifted eyebrow. "Now if you'll excuse me."

He is half way out the door when the deep voice shouts, "You'll be back! You can't stay away." And heaven help him, he knows Sebastian is right.

Reviews equal love and possibly a sequel? Let me know how you feel about that. :)