Any "bling" is meant to ADD to the person. People wear earrings because they want more attention to their face. . .
You're adding bling to your belly. . . So they will look at your belly. If you were to put a tattoo on your legs. . They would look at your legs. . .
It's not the addition to your skin they find attractive. It would be your body.
Do you really want boys to just be attracted to your body? While attraction is needed, they should be attracted to you for who you are as well as if you're pretty. If you're getting a piercing just to attract guys. . . You might. . . But what kind of guy are you looking for? You'll just attract the trash that way. They don't care who you are. . . Just your body.
I don't find a belly button piercing hot. . . I find women with amazing personalities and a strong sense of who they are and what they're doing to be hot.
It all depends on how attractive your stomach is. If you have a nice flat, tan stomach then it's going to look really good. If you have an unattractive stomach then it's going to look really out of place. If you have an average stomach, it probably won't change much of anything at all.
I am 27 years old and male, I think most guys have some kind of attraction to it. With so many women and girls out there getting them done, there has got to be a reason for it. Esp if she/you show it off a little bit now and again. There's nothing hotter then a good looking girl with a belly button piercing. Have you posted any pictures of it?
I feel like it is very much a high school trend. It seems like half the girls at school did it then, and then got over it a few years later when they became a little more mature and more sexually confident. Hardly anyone still wears it anymore, except those girls who want to attract certain types of guys.
Really I think generally its an excuse to show off that part of your body and if you feel you want to do that, & need a belly button ring to do it, then have fun with it!
I'm not a guy, but I did just recently get my belly pierced at 20. I personally love it and my boyfriend does as well. I find it to be a motivation for me to loose some weight so that I can kind of show off my piercing. In all reality I got it for myself and as motivation. As for your question most guys either find belly piercings hot or they just don't really care.