If you don't put anything in a regualr piercing, it will close up and eventually heal over.
I went for about a decade without wearing earrings and they never closed up. But yeah, I'm sure gravity would have some effect, but the mass is small enough (smaller than breasts or that beer belly) that it would have to be measured by a laser to find it.
But its going to be interesting to watch as these kids age. I remember back when the tattoo deal first got going again in the 90s and this very cute girl was showing off her little butterfly there on her ever so cute derrière and my ex looked at it and said "You know that butterfly is going to look like Mothra by the time you're 40 don't you?"
And remember kids, most metal is toxic to humans so you need to use high density stuff like stainless steel, silver or gold for the posts (or plastic, which is not toxic in the same way, its carbon-based just like we are). Besides, life it too short to wear cheap jewelry.
Which brings me to this joke, now that I'm being watched I know that everyone will pay attention to it, and remember I'm here through Sunday, tip your waitresses and try the veal.
So, this little girl goes by her parents bedroom and sees her mom down on her knees putting daddy's thing in her mouth. So the next day she says to her mom, "I know that when man puts his penis into a woman's vagina that's where babies come from, but you had daddy's thing in your mouth last night." And the mother told the little girl, "Well honey, that's were jewelry comes from."
