Karofsky assaults Kurt, threatens Blaine

[thisis4fic.livejournal.com]

I seem to vaguely recall that this was a Season 2 AU fic where Karofsky sexually assaults (rapes?) Kurt. Blaine eventually finds out, and Karofsky ends up threatening to rape/assault Blaine as well (I think Kurt was knocked out at the time the threat occurs). Except Blaine freaks out and nobody can figure out why, because he didn't tell anyone about Karofsky threatening him. It was a relatively long multi-part fic if I'm remembering correctly...

Sound familiar? Appreciate any help!