Yes, that one, Flying Weight, fuck *me* it was good. I'm still new enough to hunting down SPN fic that I'm all excited every time I find someone who writes the kind of stuff I like :).

And involves lots of repetition of his brother in the middle of sex scenes.

YES. Oh yes. I pretty much want to roll around in the incest :). "little brother's cock" and all that, nlakdfsdf.