Each is a significant part of all of our lives. Each of them can, depending on the circumstances and the individuals involved, be irrelevant, harmful, amusing or bliss.
In most cases, though, most of us have the decency not to display either in public. It can be embarrassing, perhaps even dangerous, both for you and for the odd onlooker.
There is a place — not, necessarily, the same place — to share each of them, ideally with a special person who will help us diminish our ignorance and/or express our sexuality without taking advantage of our vulnerability or judging.