This is a headcannon that one of my readers, @bluecoolicecream found similar to one of the earlier chapters. I've been meaning to add it in for a while, and have finally got around to it.
Lily:*loses James in a crowd*
Lily: *uses hand as a megaphone* SIRIUS BLACK IS LIKE HIS FAMILY
James: SIRIUS BLACK IS NOTHING LIKE HIS FAMILY! IF YOU EVER SAY THAT AGAIN, I'LL-
Lily: Found him.