Pretty certain that is righteousbros' Find the Light (http://righteousbros.livejournal.com/5389.html).
Summary: Jared is an accomplished fashion photographer in New York who meets Jensen, a young model who Jared decides to take under his wing. He wants to help Jensen and protect him from the dark side of the industry, but at the same time he can't ignore the undeniable attraction between them. He knows it wrong, but the more time they spend together the more it seems like nothing in his world could be more right.
no subject
Summary: Jared is an accomplished fashion photographer in New York who meets Jensen, a young model who Jared decides to take under his wing. He wants to help Jensen and protect him from the dark side of the industry, but at the same time he can't ignore the undeniable attraction between them. He knows it wrong, but the more time they spend together the more it seems like nothing in his world could be more right.