This is not to say that it's a choice, but to put it simplistically - like, utterly, ridiculously simply - have you ever had a food that for years you had an aversion to, then one day you decide to try it and you like it? Tastes change.
This idea doesn't surprise me in the least. My own sporadic research into the subject, along with human anectdote has left me open to the idea of fluid sexuality for some time.
What surprised me about the article and the study is the seeming assumption that it is women that have this fluid sexuality and that men remain static.
Richard Lippa, a professor of psychology at California State University who has done a series of studies on sexual orientation, says most men are strongly attracted to one sex or the other —they have a preferred sex and an unpreferred sex.
But “there are more shades of grey to women’s attraction,” he says. Women, he says, tend to have a preferred sex and less preferred sex. Women are much more likely than men to report some degree of same-sex attraction.
I'd have to wonder how much of this binary is related to societal perception and acceptance of homoerotic behaviour in men as opposed to that in women. It seems a common occurence that over the last decade or two a women can engage in homosexual behaviour, call it 'experimentation' and still identify as straight.
However, on the flipside of that coin, the opinion expressed that any homosexual behaviour in men and societially speaking, they're gay, gay, ever so gay. Even in some cases of unconsensual (ie. jailhouse) sex, this is considered to be true. Men who 'come out' late in life are generally assumed to have been repressing their 'true' sexuality.
Taking a social constructionist view on things, I'd be interested to know if these researchers have considered prevailing social roles and conditioning as a factor in the perceived difference between the 'fluid' female spectrum of sexuality and the 'static' binary of male sexuality. Could it be that males report a distinct 'preferred' and 'unpreferred' gender because from the youngest of age, society discourages any sort of admission of homoerotic leanings, unless of course one is ready to 'go big or go home' and fully live up to the typical all-out gay stereo type? That, where women for the last couple decades at least have been allowed to express to certain extent at least a passing fascination with our sisters? Women have been allowed a middle-ground, where in males, this possibility of a middle-ground has all but been stomped to shit.
Something to ponder, anyway. Thoughts?