I have not read this story so I'm just going off a description. Dean is pulled into a AU where Sam did not survive the fire but Jess did. They are hunting together along with Cas. Cas and Dean are a couple. When Jess finds out that Sam is alive in Dean's universe she goes with him. Her version of Dean and Cas are upset but she tells them that they have each other and that she needs to be with Sam. PLEASE HELP!! I have no idea where it was posted but it might have been FF, any help is good help. Thank you!