I've seen this come up in conversation multiple times, but never in great detail: People simply making the claim that "sexuality is fluid" without delving further into what they actually mean by that statement. Surely people don't actually think your sexuality "changes", do they? Or at least, they don't believe the handful of people who do possess fluid sexualities speak for the whole? In the latter cases, your perception of your sexual orientation can change, of course; that happens frequently when someone who thought themselves previously straight comes out as any non-straight orientation, or when someone thinks they're gay/lesbian but turn out to be somewhere on the bisexual spectrum. And of course, the cases of asexuality themselves, where people haven't been sure who or what their drawn to, due to a lack of sexual attraction. So I guess I'm posing this question: when you or someone else says that "sexuality is fluid", what do you really mean by that, and more importantly, what sources support that belief? Not meant as a dig or anything. Just curious is all.