Thought of another with Sam/Dean that's has non-con but not graphic, at least if you don't read the prequel which isn't necessary to read the story, it also has a sequel after that.

An Issue of Consent
http://varkelton.livejournal.com/11848.html
It sets in several months after the rescue (but there are flashbacks and two prequels) and the trauma of the abduction is overshadowed by the fuck-or-die curse a creature put on Sam on top of abducting, raping and torturing him.