The first fic is a fic written with the premise of BIOTA, but I remember that it was written before the episode aired. In it it was Blaine, not Kurt who had the issue with bisexuality and Santana gave Blaine a lecture about how she was bisexual and proud of it. I think Blaine and Kurt were keeping their relationship secret and then they got outed because Blaine was a very handsy drunk towards Kurt.
The second one I remember less about, but I think that it was an AU of BtW in which Kurt had never moved to Dalton. New Directions were performing Born This Way in a mall rather than in school and The Warblers happened to be there too. The Warblers thought that Kurt was brave for wearing "Likes Boys" in public, Blaine was slightly 'love at first sight' I seem to recall and when Kurt threw his jacket into the crowd it was Blaine that caught it.
Second fic found on fanfic.net, "Always A Pleasure" Chapter 11
Hope you can help, thanks!