Its a recent Sassy story I read here on Lj and forgot to save. Sam and Dean were part of a space exploration team. They traveled to cosmos to land on a type of celestial planet. They meet Cas. Sam and Cas hit it off right away. I don't want to tell much without giving it away for those that will read it. When I did read it, I don't think with was complete yet. It left off on a rather bad place. Please help.