There is a story called Imprint by mass_hipgnosis, but the live journal account has been deleted. They have a presence on AO3, but no spn/j2 docs seem to be posted there, just stories for other fandoms. Anyway, the summary for Imprint is as follows, if this sounds familiar:

In a world where love at first sight is a documented scientific phenomenon, and potentially lethal, Jared and Jensen still meet for the first time when they've both been chosen for Supernatural; things just go a little differently after that.

Sorry I couldn't be more helpful...

That was the story I was looking for. I wish it was still around, I had loved that story and wanted to read it again

Thank you so much for searching out the story for me!

Leah

The story has been asked for just last month. Have a look here (http://spnstoryfinders.livejournal.com/10391685.html), there's a pdf :)

I have a mp3 of the podfic if you'd like that too.

Thank you, i'm good with the PDF :)

Thank you so much for the link. I haven't read some of those stories on the list and few i've forgotten about.

again Thanks!

It looks like someone else found it for you - yay!! I love this story, I'll have to grab the PDF myself :-)