He's never questioned himself before. Not even once throughout his entire life. He's never had some kind of moment where he realized 'Oh, I like boys' or 'Man, girls are where it's at'. He's simply assumed he liked girls because, well, all his friends liked girls. Hell, even his girlfriend liked girls. Boys never even felt like an option.
Blaine is a boy though. Blaine is a boy, and if Kurt really was straight then he wouldn't be having thoughts about him. Snuggly thoughts. Date-y thoughts. Kissing thoughts.
Or the one where Kurt honestly assumed he was straight until Blaine came along
- Part 1 of Labels
Kurt doesn’t have much experience with people talking behind his back. He’s never really been popular enough for that. To suddenly have everybody he knows, plus a multitude of people he doesn’t, doing it is a little overwhelming, to say the least.
- Part 2 of Labels