dark fic recommendation: My Loose Thread (SPN)

It's short, Wincest, and fucked up. Sam's kind of peripheral and I didn't get much of a read on his character (I felt some distaste for him here, and I credit the POV with that one), but he's important. This is Dean's POV and he's a conflicted, violent mess, brilliantly done - yet I felt sorry for him, like in this version of the SPN world, Dean never had a chance. He's scary. No happies.
My Loose Thread by sasquatchbean