User blog:PencilDJ12/Koopalingz

Well the creator said they weren't Bowser's children biologically, but they could be adopted or Bowser could be related to him in some other way. A day with Bowser Jr made Bowser their uncle and adoptive father, although they also made BowserxPeach a couple, so...

I'm still thinking about my Koopaling headcanons but right now I have Bowser as their adoptive father, while Bowser Jr is their adoptive little brother. BTW I made the Koopalings 13 year old septuplets and Bowser Jr 8.