Story: How Stupid Was I?
Author: MikoAkako
Beta: None
Pairing: Kurtbastian, Klaine
Rating: T
Disclaimer: I own nothing.
Summary: Kurt confronts Sebastian after Blaine admits to cheating. The only problem is, Kurt doesn't know who hurt him more.

Kurt wasn't even sitting before he started searching the crowd for the irritating grin he had come to know and hate in the past few months. It had become part of their routine; Kurt and Blaine would go to the Lima Bean for their Saturday afternoon date and Sebastian would be there within five minutes. Sebastian would then proceed to make pointedly sexual comments at Blaine while Blaine halfassedly defended their relationship until he decided he needed to refill his still half-full coffee. Then Sebastian would turn to Kurt and the real fun would begin.

Kurt loved the verbal sparring with Sebastian. It excited him to be able to give as good as he got, but to know that he didn't need to use a mirror to look around corners or keep someone with him at all times for fear of getting the shit beat out of him when he wasn't paying attention. Except recently their exchanges had started to take on a slightly different – almost sexual – tone. Kurt felt his heart speed when Sebastian narrowed his eyes, flicking them down for the briefest of seconds and then licking his lips. And he saw Sebastian's adam's apple bob when Kurt would lean forward to make a point.

It should have been a clue that something was wrong when Sebastian was nowhere to be seen even after fifteen minutes. And even if that didn't set off alarms in Kurt's head, the fact that Blaine was rambling on about a performance they'd done in school that week as if he forgot Kurt was there, and the tight grip Blaine kept on his cup without once raising it to his lips definitely should have been a sign. Even so, when Blaine said what he had been building up to, Kurt was still so shocked he didn't trust his ears. "What did you say?"

"Sebastian and I…we had sex. Last night. It was terrible, Kurt. I'm so sorry. I never wanted to hurt you. Please. Let me make it up to you. I'll do anything." Blaine didn't stop talking, but after the first sentence, Kurt felt himself go numb. It was like his brain wouldn't process anything else, even the pain that was ripping at his heart. He didn't even realize he stood up until Blaine reached out and grabbed his hand. "Please, Kurt. Say something."

"I uh…I have to go. I have a math test on Monday and I need to study for it. I'll see you at school." He tried to take his hand back from Blaine, and after a moment Blaine's grip loosened.

"I love you, Kurt." Kurt heard the sincerity in the words.

"I know," He said in return, already walking away. He had to force himself not to run to the car, but to take slow, even steps the entire way.

He felt like his entire body had been dipped in ice water, numb and burning at the same time. He needed to keep busy on the drive, so he reached forward and turned the heat to full blast, even though it was pushing 80 degrees outside. He was still shivering when he pulled into the Dalton campus forty five minutes later.

It was a horrible idea. Everything in him screamed for him to turn around and get the hell away from this place, but his feet had a mind of their own. They led him down familiar hallways, taking turns he had walked with Blaine only a year before, thinking there was nothing that could make him happier than the boy whose hand was entwined with his. But with each step he took he was walking further away from that happiness. He wasn't a terrified child anymore, but a confident young adult, growing in self assurance every day.

When he reached the door he wanted, he didn't bother to knock. It was unlocked, and the occupant looked disheveled, sitting on the bed with his knees tucked up watching television with a glazed expression that indicated he'd been staring at the screen for hours. It took Sebastian a minute to realize someone had barged in, but when he did he was on his feet in an instant, the haughty mask back in place.

"Blaine told you? God, I should have known he wouldn't be able to keep a secret," Sebastian's signature smirk accompanied the words. "What did he tell you? Did he tell you how he came over here and begged me to fuck him? It was a disappointment, really. He made it so easy in the end."

Kurt heard the slap and felt the pain in his hand before he even realized he had crossed the room. "You're an ass, Sebastian."

To his credit, Sebastian didn't flinch, and didn't even lift a hand to wipe away the small trickle of blood where Kurt's nails had cut him. He did have to adjust his stance to keep from falling back, but he never lost the smirk. "Did you take him back?"

"I thought you and I…God, I'm such an idiot. It was all a game, wasn't it? You made me think you didn't even want him any more. That you wanted…" Kurt didn't finish the sentence. That you wanted me. He couldn't get the image of Sebastian's hungry gaze following him when he would stand up and grab Blaine's hand, storming out after a particularly satisfying match of wits. Surely that hadn't been in his head. But obviously it had.

"You?" Sebastian crossed his arms and chuckled. Kurt felt small under the haughty gaze and for the first time since they'd met he looked away first, flushed with embarrassment at the absolute ridicule in the single word.

"Forget it." Kurt summoned every ounce of dignity he had, drawing on the stores he had used when Karofsky had bullied him and when Blaine announced he wanted Kurt's help to serenade someone else to keep his back straight and his head tall as he turned around to walk away.

Before he could move, Sebastian reached a hand out and grabbed his upper arm, anchoring him and keeping his feet still. He spun around, ready to lash out with words, only to feel lips crash against his. He was stunned at first, unable to respond. And then he lifted his free hand, the other still gripped in Sebastian's hand, to reach up and bury his fingers in the other boy's hair and press them closer together.

There was a fierce passion in this kiss that was missing in his kisses with Blaine. Neither one of them was willing to admit defeat and relinquish control. Kurt tasted blood on his lips, but he couldn't tell whose it was and he didn't care. When they were both out of breath, they separated.

The space was enough to give Kurt a moment to gather his thoughts, and he pulled away. He saw something in Sebastian's eyes that he had never seen before, but it vanished behind the mask too quickly to identify.

"I have to go." Kurt was still breathing heavy when he spoke the words. "I have to do something."

This time, he knew Sebastian's eyes were on him when he walked away.