Breast pump and domperidone.
Well there are a number of ways, Nipple piercings tend to be behind the nipple itself "pushing" it out. You could create a suction extending your nipples whaich has worked for a number of people it feels damn good as well....
Be happy in the beauty you already have. You are unique and special for a reason. You will be perfect for the one who is perfect for you.
Nipple rings with weights?
Yes, I do ! Bring them over and we'll see what we can do to help....!?
I can nibble on them all day?
You might want to talk to a plastic surgeon. They seem to do everything these days!<br />
But I definitely would not try anything "do-it-yourself", which would be painful at best and cause permanent damage at worst.
By longer you mean you want to just reshape them into the next size up? But why?