Kurt was rummaging through his locker when a voice he didn't immediately recognise came from his left. "Hey. You're Kurt, right?"

Slightly perturbed by the sudden interruption, Kurt glanced sideways, only to come face to face with a dark haired boy who was slightly shorter than him. There was something familiar about him, but Kurt couldn't pinpoint what it was, exactly. "Yeah, that's me," he replied, not entirely at ease. "How do you know? And who are you?"

The boy's smile fell for a moment, but before Kurt even had the time to register that, the boy was speaking again. "So she really never told anyone about me…," he muttered, seeming slightly dejected by this. He sighed. "Right. Sorry for bothering you."

Kurt blinked. "No problem. Is everything alright?"

The boy, who'd already been turning around to walk away, looked back at him and shrugged. "I'm fine."

Even without actually knowing this boy, Kurt realised that that simply couldn't be true. Still curious, he asked, "How did you know who I was?"

He closed his locker, and when he turned back to the boy, he was surprised to see a tinge of red on the boy's cheeks. "You're in some of my sister's photos," the boy muttered offhandedly. "You really… stand out in a crowd, you know that? It's pretty amazing."

Kurt quickly went over his friends' families in his head, but he didn't recall anyone ever mentioning a brother nobody, it seemed, had ever met. "It is," he agreed. "So… I know your sister?"

The boy nodded, deflating again. "Obviously she doesn't really talk about me, then."

Starting to feel a little bad for the boy (after all, a sister who seemed to be denying his existence to her friends? Kurt wouldn't want that), he suggested, "Maybe she talks about you to others? Just not to me?"

"Oh, no, I doubt that," the boy replied. "Rachel does consider you her best friend, after all."

Kurt frowned. Rachel? "That's weird," he agreed. "I wonder…" Glancing back at the boy, he asked, "What's your name? Maybe she's mentioned you, but – "

"Blaine," the boy responded. "Blaine Anderson. Don't ask about the different last names," he added as Kurt looked confused. "It doesn't make much sense to us either."

Still not able to recall any occasions during which Rachel might've mentioned her brother, Kurt asked instead, "Are you new here? Did you want to ask something?"

Blaine nodded. "Yeah, I just transferred today. I attended Dalton Academy before this, and while it's great there, it doesn't really prepare for the real world… it's a bit sheltered." For a moment, Kurt could've sworn Blaine was going to say more about the topic, but he seemed to rethink that. "And I wanted to ask you where I could find the choir room… and maybe if you wanted to go for coffee after school?"

That caught Kurt's interest. He'd never been asked out, even if it was just for coffee, in his life. "You're gay?" he asked, baffled. Now it was an ever bigger mystery to Kurt why Rachel had never mentioned her brother to him. When Blaine nodded, Kurt smiled. "Sure. That'd be nice."

"Let's not tell Rachel yet," Blaine said as they started walking towards the choir room. "If that's alright with you? I just have a feeling that she wouldn't like… this very much, especially if she never mentioned me."

Kurt thought about that for a few seconds. Blaine was probably right. Then again, Rachel was his best friend. Who, incidentally, was dating his stepbrother. Well, then. She'd just have to deal with it. Besides, they were only going to have coffee, that was all.

Nobody was in the choir room when they got there, but Blaine insisted on staying there anyway, as he wanted to practise his audition song for New Directions. Kurt, having another class to go to, left, after making sure Blaine was fine by himself.

And if he had any lingering doubts about Blaine really being Rachel's brother… well, Rachel cleared all of them when she spent the entire lunch break bemoaning the fact that her annoying little brother (whom she had, indeed, neglected to mention before today) was now at McKinley. Kurt, however, didn't think he minded very much.