Blaine was getting a little paranoid, though. He wasn't totally sure if Kurt still considered Blaine his best friend.

Blaine had a doctors appointment, one day and wasn't at school, leaving Kurt all alone. So, Kurt had to find someone else to keep him company. He befriended a little African-American girl named Mercedes. Blaine met her once he came back and she seemed pretty nice and all, but he couldn't help feeling a little bit jealous of the time she was spending with Kurt. They seemed to have so much fun together. It was just like how Kurt and Blaine had acted on the first day of class. He felt like he was losing Kurt to her and that was the last thing he wanted.

One day, he finally decided to confront Kurt about it. They were sitting on the bench outside of the school that they had dubbed their bench – it was the place they had decided that they were best friends, after all. They were waiting for their parents, as per usual.

"Kurtie?" Blaine asked after a moment of silence.

"Yeah?"

"Can I ask you a question?" he asked hesitantly.

"You just did," Kurt giggled.

"No, seriously, Kurtie. It's like, really important," Blaine insisted.

"Oh," Kurt whispered, "What is it, Blainers?"

"Are we still best friends? 'Cause you said we would be forever and ever, but then you met Mercedes and I kinda started thinking that maybe she was your best friend..."

Kurt stared at Blaine with wide eyes. "Blainers, 'Cedes is just my friend. You're my best friend," Kurt grinned. "I thought that you and Santana might be best friends..."

"No!" Blaine shot the idea down quickly, "Santana's really cool and stuff, but you're my best friend."

Kurt giggled, "Good."

"Let's make a promise. No matter what other friends we get, we're always gonna be each other's best friends," Blaine proposed.

"Deal!" Kurt smiled.

"Promise?"

"I pinky-promise!" Kurt said, extending his pinky to his friend.

Blaine grasped Kurt's pinky in his own. "Best friends forever."