Getting a tattoo will actually hurt, but it is not that bad as everyone makes it out to sound. It neither does depend on what you get nor where you get it. The pain is actually inflicted by the tools used. Go to http://tattoo.about.com/cs/pafterabvneck/a/090103.htm for more details.
Ive heard from tattoo artists that have been in the bussiness for a long time that it hurts more on your ribs, collar bone, joints and such. On your butt well remember the little pinch from when you were small and you went to the dr . to get shots? Sort of like that i guess but it does hurt in general....and wait...why there? why not your lower back? or legs?