This is probably the amount of piercings Forth'Wyn will have in at least one ear, maybe a few less in the other. She's kinda sensitive about her ears because they're pointed, so I imagine all of the piercings are her way of making them more /her/.
I've always wanted a row of ear piercings. I've gotten a cartilage piercing before but it closed. When I pierce my ears it takes about a year to heal making it very difficult, but I hope to have many cartilage piercings one day!