This one might do?
xxx

I'd Rather Fight With You... (http://sweet-lyri.livejournal.com/134008.html)
When Jared decided to spend his summer working at a camp, he was expecting it to be easy. But Head Counselor, Jensen, seems to have a personal grudge against him, and Jared doesn't know what he did wrong. Until the last night of camp, anyway, when the reasons behind Jensen's bitchiness become apparent. Now summer's over, and Jared thinks he's leaving his summer tryst behind him as he moves into a new building at STU. But what's he going to do when he finds out that Jensen lives there too?
58,000+

http://fatebegins.livejournal.com/56825.html

Title: Can You Help Me Remember How To Smile?
Pairing: Jensen/Jared
Rating: NC-17
Word count: 41,117
Warnings/Spoilers: ASSHOLE!Jensen like whoa,serious illness (NOT A DEATH FIC), Jared is 23, Jensen is 27
Disclaimer: I own nothing, just borrowing faces.
Summary: Jared's been raising his sister's four year old twin boys, taking care of his Mama,his sister and trying to make ends meet at just 23 years of age. When he gets life changing news he has to make the decision to bring the boy to the father they never knew, a man he once loved with all his heart.

That one is so sad it made me cry for weeks!!