Dawn and Connor hook up with Sam and Dean

[ladyhatshepsut.livejournal.com]

I've got this fanfic scene stuck in my brain and I can't get it out and can't find the story.  Help!  Connor and Dawn (dating?) are directed to go see Missouri, the psychic from Supernatural.  They're wondering what they've got themselves into when Sam and Dean Winchester Winchester show up at her door within a very short time and almost as soon as they get there she's telling the brothers they need to go with the younger pair