Just read the pomosexual wikipedia page.
PoMo shit. It's not a form of sexuality, it just refers to people who try to avoid the traditional labels attached to sexual orientation. Like gay people who don't want to classify in the whole feminine queer thing. That is me but I wouldn't be as wanky as to care about it.
I like boys, which, for the purposes of communication, means I'm gay. G.A.Y. Why would anyone waste their time on getting hung up over its connotations? Makes you a bigger queen than all the queers.