I think this is a story, but I am not sure. Kel and Johnny are together. A crash brings a family into the ER, only survivor is a little boy. He and his family weren't from the US. Kel and Johnny find out Kel is related to him (possibly) and are fostering. Roy is against this, as well as the relationship.
If anyone knows of this, can you please let me know? Thanks!
I believe the story you're looking for is I Am What I Am by kwittbugginme. It's still a WIP but author is hoping to add more soon. Here's the link to the story.