Slutty would be determined by your actual actions, although. I'm not quite sure what slutty actually is anymore. Girls your age are simultaneously being taught to explore your sexuality and save yourself for the one you love. Anyways, you want a belly piercing becouse you want peoples attention drawn to that area of your body. That is the only reason to mark oneself in that manner. Expression, look this is who I am. Some people get tats to remember and such, but those are not this. Not that I have any issue with them, it is what people do, just be honest about the reason. Look at me does not mean have sex with me either.