OK, engaging the higher levels of the brain--the elemental levels are as agog as previous posters indicate.
I've enjoyed many ladies who are pierced either above, below, or in both regions. Intrinsically, I find it a big turn on, because it suggests that she is advertising her erogenous zones and invites being orally pleasured. Beyond that, the piercings suggest that she is interested in sensual fulfillment beyond the realm of the ordinary.
Given all that, the question becomes one of technique. How much stimulous does one apply to the piercings? I.e. how hard? For how long? How often? And in what context of the BDSM realm?
Breast piercings rock, regardless. As for clit piercings, bars are easier to navigate around during DATY more so than rings. One badass retired lady had a bar piercing that glowed in the dark.
Nice. Though I hope mine don't get caught and snagged on yours. Double ouch for us both. Yes, I have had mine for 10+ years. The ladies like them also. Mine are for decoration not pulling on.