you can have it done if your slim it doesnt make a difference! Firstly they clamp the skin where they want to pierce it (you have some decision in that!) then they spray it with freeze spray. After this they put a needle with a plastic tube over it through the skin. The needle is then pulled out leaving the tube in the hole. The bar or ring youve chosen then goes in the plastic tube, the plastic tube is then pulled out leaving the bar in place and the ball is screwed on top! quick and painless!really!you have to look after it though.
i actually found it less painful without the freeze spray to be honest! it's not that bad but afterwards you really need to take care of it. it can easily go nasty!
I didn't find it painful at all - that was with freeze spray - but it healed out really quickly, in about 6 weeks. I was a bit disappointed, but it all depends on the individual and their skin. Mine can be a bit temperamental.