Toon Link called Rumeidia, "Mama Rume" and not just "Mama!" :D Oh, and just babbling a smidge here...
I made our beloved six(Marth,Roy,Ike,Link,Pit,Rumeidia) and Toon Link into a huge family, for those who don't know.
Marth&Roy-Brothers(Marth is considered older though)
Marth&Rumeidia-Brother&Sister
Roy&Rumeidia-Brother&Sister
Ike&Marth-HUSBAND&WIFE >:D(well, in mine and Rumeidia's minds XD they don't act like it anyway at the moment)
Ike&Roy-Brother-in-laws
Ike&Rumeidia-Older Bro&Younger Sis-in-laws
Link&Rumeidia-Husband&Wife(NO SURPRISE THERE)
Link&Pit-Brothers
Link&Toon Link-Father&Son
Rumeidia&Toon Link-Mother&Son

And any other relations I think you can figure out on your own :D