I have two theories: one is that women who have perforated paunches are more liable to show off their midriffs. And men love to eyeball free skin. The second theory is that dudes who find bellybutton rings sexy also grew up masturbating to Britney Spears.
Personally, bellybutton rings are almost a deal breaker for me. I can deal with a woman who has a “tramp stamp,” a tattoo at the base of the spine that is generally a butterfly, unicorn, or cheesy Celtic symbol. I dated a body piercer for years and years. She was inked up and she had so much metal stuck in her, she jangled when she walked. I had neither tattoos or piercings. Which was probably why my nickname around her shop was “Narc.” Even though i could roll a mean joint.
Everyone rolled their eyes and snickered at young chicks who wanted to get bellybutton rings. Because of this ex-girlfriend, I learned that the bellybutton ring is one of the most painful piercings. It takes weeks to heal, and is easily infected. And as a dude who banged it out with a chick who had ALL kinds of exotic chinks in her, let me tell you that a bellybutton ring has no functional purpose.
A tongue ring can be a lot of fun, specifically for the dude. Nipple rings are fun for whoever is wearing them. A pierced nipple is like sex ignition. Just turn it. And every man should sleep with a woman who has her gentle nubbin of pleasure pierced. All you have to do is wink at it, and she her orgasm will shake the windows.
But a bellybutton ring? Whatever. A woman with one of those isn’t serious about body modification. If you’re not, why bother? A guy who insists on one is kind of creepy. Or worst: boring and unoriginal.