Ok everyone helped me out last time so I am hoping that someone knows what I am talking about now. I know a few things about the fic I am looking for:

1) It was on Fanfction.net
2) It was set during Jus In Bello
3) Henrickson was talking about deciding between surf and turf
4) The line "Daddy probably touched you in a bad place" was a big part of the story
5) Dean made Sam tell him why he fliched and looked away when Henrickson said that line
6) Dean was very mad at John

May have eventually turned into Wincest, don't remember.

Thanks so much!

ETA: Found! www.fanfiction.net/s/4304684/1/Dont_Say_a_Word by authoressnebula