Which one hurts more getting your tongue pierced or getting a tattoo?

The sensation of piercing varies from place to place, the tongue when pierced doesn't hurt so much as actually more a sensation of pressure. The nipples are again another sensation (keeping in mind we are talking about piercings done by a professional body piercer with skill and experience) completely different from tongue piercing. The sensation of pain is reduced by the client's mind set* (* do you want the piercing or don't you, if you want something it's much easier than when you have reservations about doing it ) and the skill of the piercer.