I read a Klaine fic a couple of weeks ago (only about a week after the Teenage Dream episode) and I wanted to rec it to a friend, but I haven't been able to find it >.<
What I remember most about the fic is this one scene between Blaine and Kurt. Kurt is yelling and is really close to Blaine and Blaine thinks about how he can sympathize with Karofsky for kissing Kurt unwillingly because he looks so beautiful when he's upset. I'm pretty sure they were in the commons area or one of their rooms. I do know that I read it on fanfiction.
I know it's not a lot to go on and I'm sorry about that, but I was reading more than one Klaine story at the time.
It's my first time posting a search so I hope I got the tagging right :)