I used to have a labia piercing, and nipple piercings. The labia piercing had to go because it was too difficult to groom around, and nothing says sexy like a patch of stubble where it doesn't belong lol. It was purely for looks, being on the labia meant it neither added nor detracted from any pleasure. I loved the way it looked, but it was just too hard to maintain, so it had to go.
Nipple piercings were a different story. I liked the way they looked, but my experience was that men often assumed I liked nipple play on the rough side. I smacked a few men who literally BIT my nipple and then they would tell me they thought I would like it because of the nipple rings. Once in a while, a gent would ask me to remove them, which I was happy to do. It was actually after removing them that I realized how much sensation I had lost because of the rings. ONce I realized how insensitive my nipples became with the rings in, I never put them back in again. I can also tell you that when I stopped wearing them, I don't recall a single gent asking me to put them back in for him.
That is my experience, hope it offers you some insight