urmmm..... ummmm not sure?
I got the nickname in college from Chef Aukstolis. cuz i said i wasn't there(johnson &Wales University) cuz i wanted to make money. so the joke was I'd become a nun and work in a soup kitchen for free. Sister was my nick for the rest of the trimester.
Sometimes yes and sometimes no. more yes than no. I'm sure I annoy her almost as much as she does me.;P She's the best friend i never have to worry about leaving me.
We usually get along fine though we do have our quarrels.
<3 Smiles. Some of the sibling stories we hear about friends are scary:O