I think sexuality just is, like "intelligence" or hazel eyes :-) I don't think it's a "choice" like the sex act can be. An intertwined twin is sensuality, "touch." We all need touch, cradle to grave in order to be whole/healthy. An infant will fail to thrive and literally die without it. It is all "there" whether we choose to express it a certain way or not, our sensuality and sexuality. Neither are the same as the sex act; that's an expression of sexuality, not sexuality itself.