nipple piercing questions.

Olivia
I'm still debating on getting my nipples pierced but there are a few questions I have.
 1. I already have sensitive nipples ,so would it be a bad idea to get them pierced since they are supposed to make them more sensitive once pierced?
 2. Also I love it when my bf sucks on my nipples but would having them pierced affect that in anyway. Like would it make it harder for him?
3. I don't plan on having kids any time soon but when I do I hope to be able to breast feed. Does having your nipples pierced affect that in any way? 
4. Lastly I have big boobs and I was wondering if it looks good on big boobs, because I only ever see girls will small boobs have their nipples pierced?
When I say big boobs I mean size D/DD