Disclaimer: I don't own glee.
Sam didn't like Blaine, not at first. Granted, he hadn't really met him back then, but from what he heard from the ones who had, he thought that Blaine was just messing with Kurt, and that, when Kurt actually realized that he was smitten with the dark haired Dalton-singer, Blaine would do something cruel. Like breaking his heart,telling Kurt that maybe he wasn't gay after all. That changed when he met Blaine for the first time. Kurt had returned to McKinley, and was hugging his friends, when all of a sudden music started to play. The warblers (yes Mercedes had told him about them), appeared around the corner with Blaine leading them. They then proceeded to sing a song for Kurt, and from the way Blaine and Kurt looked at each other, Sam quickly decided that he had been wrong all the time. He realized that maybe Blaine was one of the best things that could happen to the self-proclaimed fashion-nerd.
A/N: If you feel like you have time, please leave a review and tell me what you thought!