I'm only attracted to people who I find to be feminine in a certain unspecified way. All of them have been non-male and okcupid only provides two gender options, thus the label "F / gay" is convenient enough. However, if you use the OkChoices script, like I do, you will see things in a little bit different way. You can find and install it here:
I'm married to mafialegs and I have a girlfriend who's not on OkC. It would be nice to appear as "available" but to achieve that I would have to lie and say I was looking for something. I'm not, but that doesn't mean I'm not available. I'm poly and open for meeting new people if they happen to come my way and be awesome.