I've had my belly button pierced for 10 years now. It got infected in the very beginning, but healed quickly and I now forget it's even in. I was 17 and my mom was with me. We were at the beach and I decided to ask her if I could get it done. She was as excited for me to get it as I was! There was no rebellion in it, it was just a fun and exciting thing for me to do at the time. I had friends whose parents would have never let them get it done, so they did it behind their parents backs. Then on their 18th birthday revealed it to them.

I think if your daughter is asking permission, then she wants your support in this. If you don't let her, it may turn into a rebellion thing...maybe - I can't say since I don't know her? It's really not a big deal. It's not permanent and if she doesn't like it, she can always take it out.

Good luck in your decision!