Don't let your significant other define you in ways you don't yourself want to be defined.
If this girlfriend of yours truly cares about you, then she would not want to bring you down a path you are uncomfortable going. Granted, don't assume she doesn't care. You may have unintentionally made it sounds like you wouldn't mind getting piercings. Tell her frankly that you don't want any and if she insists you get them regardless, take appropriate action.
How about this?[spoiler]If you want piercings, get them.[/spoiler][quote]If you don't, she can get over it or else she isn't a good girlfriend.[/quote]
so.. prince albert, jacob's ladder,etc? don't do it. it'd never be worth it.
small plugs ? only if you go for both ears, and practice a lot of ear cleaning(they WILL smell like a sewer otherwise)
snakebite? well.. that just [url=http://www.youtube.com/watch?v=xWxWzqChvfo]looks like you're a kanye[/url]
tongue piercings? once again "Pvt Pyle! I bet you could suck a golf ball through a garden hose, maggot!"
eyebrows, nose ring,etc depends on the face, not everyone has the right face or makeup to pull off those looks.
I used to have a few and I say don't get them. It's not worth it and all it is, is a stupid phase you're going through. You think by getting body piercings you're gonna be part of some cool crowd that doesn't exist.