This magic little word, simply means "(the thing makes you) think of sex first". Thus, anything could be "sexy" depends on the sex orientation of a person. For example, if a guy says "that shit is sexy" when he's actually pointing at an excrement (because according to another definition of "sexy", by FazzyC, this guy could just be a moron), then you can easily tell that he suffers from Coprophilia. Though, when you consider a person "sexy", s/he is not necessarily always the sex object of yours at the time.

Love is as much of an object as an obsession, everybody wants it, everybody seeks it, but few ever achieve it, those who do will cherish it, be lost in it, and among all, never? never forget it.