The Three Faces of Jared (http://www.sinful-desire.org/archive/viewstory.php?sid=2500&warning=5)
Meet Jay Welling. He's married to a very rich man, living in a beautiful home. To the outside world he appears to be a withdrawn but sweet young man. To his husband, he's a prize. But deep down inside there's more to Jay, and 'they' are coming out. When Jensen meets the beguiling young man, he's not sure what to think- but he knows he wants him.

Louder Than Words also fits your request. The author has deleted her journal but you download the fic here.
Louder Than Words (http://www.mediafire.com/view/?w4cgybw3rffzf1b)
Jensen is deaf and dating David Boreanaz when he first meets Jared.

Summertime in Austin (http://dark-shadow85.livejournal.com/47280.html)
For one weekend each summer for the past two years Jared Padalecki has met with the family’s advertising executive, Jensen Ackles. The attraction between them had been immediate and strong but both were in a relationship and lived in different cities. After two years, Jensen has decided he can’t just keep Jared for a single weekend once a year, but unfortunately Jared’s ties are little more complex and may result in his dreams being dashed before they’ve begun.

Counting the Steps to the Door of Your Heart (http://annella.livejournal.com/1061203.html)
Author's summary:Jensen's life isn't perfect, but he's happy enough. He has friends (well, one friend and one roommate), a prospective career (if he can pass this stupid, stupid test which requires him to be able to talk to people), a sex life of sorts (with guys who are total jerkfaces and think Jensen is a dork, which is actually true), and a life-size Dalek costume with a voice modulator which lets him EXTERMINATE things (like the toaster). Then, out of nowhere, he also has Jared (gorgeous, wonderful, socially retarded, and already taken), and his life turns upside down in the blink of an eye. For the first time, Jensen has found what he wants, but how is he going to get it?