Does anyone remember a story with Sam pinning after Dean with Dean being oblivious? They where both teen-ish and got short on cash (John took too long on a hunt?). So Dean took Sam to a bar with no warning and heavily made out with him for a paying lady to watch. They were posing as not brothers, with Dean 'seducing' a Sam 'younger' than he really was. Later he said it was way quicker this way than Dean on his own (meaning he was doing prostitution-y things regularly). There was lots of Sam angst cause it was no big deal to Dean when Sam was head over heels for him and pretty inexperienced. Can't recall anything else, was quite a while back.

Thanks in advance!

FOUND IT!
It's 'For love or money' by Gecko. Link:http://www.sinful-desire.org/archive/viewstory.php?sid=3087&warning=5