Ria's bellybutton is my favorite kind. I've seen it called a "slit" online -- it's like a coin slot on a vending machine. It's vertical, and thin, and is quite dark at its center. It has a sort of mystery about it. It almost seems to say "ooooooooh" to me, begging me for a playful kiss (or to mash my lips) on top of it.
There is no visible body hair at her midsection. A closer look might reveal some very, very fine...