Rin and my old username Nire are variations on my actual name: Erin. Back in high school my buddies started calling me Nire (pronouncing it as nee-ray) and so I use that for my name on many sites I frequent.
I switched to using Rin more recently, mainly because it sounds nicer.
My husband nicknamed me "Kitty" about 12 years ago and it has stuck, he still call me Kitty rarely uses my name and I am a nurse by trade. So we get Nurse Kitty!
Alyxx was my nickname used with my suitemates back in high school for a fan fiction my friends and I decided to write when we were feeling very very silly. It comes from my middle name, Alexis.
I actually picked my name for my cam girl name. After going through so many of them. I had a couple of members say to me you are Just Like Heaven. After awhile it stuck with me. Then I came across something that said "Just Like Heaven everyone wants to get in". From there that was my new username for camming. Then I did not know there is a group called The Cure who have a song called JustLikeHeaven. I was on google making sure my name did not pop up all over the place and came across the song. I actually like it and the group The Cure. So now I use it a lot.
My favorite Powerpuff Girl was Buttercup when I was a kid, and my favorite color is green!
I also have a stuffed animal named Buttercup Green.
My real name, Jessica, is next to my made up name!