My cat’s name is Buddy, but I doubt that I have ever called him by his name. To me he is Boopy, Boopty-doo, BooBoo or Boopty-doopty.
My pet name for my sister was Tootie.
For me, the pet name that I called my sister was just like when I call out to my precious kitty cat that I love so much. I don’t call out, “Buddy.” I call out with affection, “Where’s my Boopy?” Sappy, I know. <sigh> That’s just the way I am.
I no longer call my sister Tootie but sometimes I call her the “Pootin Lady” and she gets so MAD! LOL!
Pet names are given to those who remain the closest to our hearts.