Figured I finally needed to do a full reference for Blue Fire’s family! These pones are all based off of the same meme I used to create Blue Fire, roughly.
 
Technically, Cloud Fire should be an Earth Pony and Twinkle Fire should be an alicorn, but it felt a bit much to through those in haha.
 
Lorewise, Silver Fire was born Silver Cake, and is the younger sister of Carrot Cake. The pegasus genes come from her side of the family (leaving the unicorn genes for Pound and Pumpkin Cake coming from Cup Cake’s Swirl genes). Cloud Fire had a mixed heritage too, which is why it was so dominant in their kids, but anyway.
 
Blue Fire is the eldest sister, Rusty Fire is the middle brother, and Twinkle Fire is the youngest sister! They all grew up in Rainbow Falls, though Blue Fire moved in with her aunt and uncle in Ponyville while doing her higher education studies.