well, here is my take... not that you want to hear it

get over terms. get over words. there is nothing wrong with them until someone uses it as an insult... then we have to find some new term because the old one is now "offensive".
take the words retard and handicapped. you cant use retard, at all, even though that used to be a proper term. you cant even say mentally retarded, (unless you are a doctor explaining a degradation of mental capacity using the phase mental retardation) we replaced it with mentally challenged, but that is fast becoming offensive too. handicapped... we now have handicapable (which isnt even in my spell checker yet). but even before that term was used, people talked about this... its a "person" with a handicap, not a handicapped person. you put the person first... but that really doesnt change anything at all except the "person" with the handicap perception... no one else would notice.
so we get to this topic. homo, hetero, bi... and all the others moss mentioned (heteroflexible?!?!?... i think that word took me somewhere besides what i think you mean by it

) and i think Ultra hit it on the head... get over the "machismo"
i havent actually had sex with another girl but i know im bisexual. i have no problem with that... mainly because im not "macho" and its generally O.K. for a girl to be that way (probably has something to do with how much a guy will accept this) girls are so far ahead of guys in this area... there are great things about both male and female...

but the terms still stick, home, hetero, bi... you are what you are.
now... hehe... we get to the real "meat" of this discussion... Ultra almost went there but didnt quite make it... and ill yell it for you ... WE ARE ALL BISEXUAL. and i will prove it to you. guys... you are sitting there, wherever... whether its watching porn or just tossing one off (i like that phrase for some reason) to someone in your "spank bank"... ill ask you a question... what is it you like... do you like watching that girl and her pussy getting fucked or do you like seeing that big ole cock going in and out. ... ill go to cocksucking... you dont care about the girl there... you like seeing that cock being sucked. flip the girl over and now you are watching that cock going in and out of her ass... its alway the cock you watch most... admit it.
but O.K.... you dont want to... so ill ask you one more question... while you are sitting there, watching porn or off in a fantasy... all by yourself, jerking off.... whose hand is that on your cock? is that a girls hand or a guys hand??? and there you have it... we are all bisexual.
as to terms... stop making news ones... if you dont like the old ones because of some mental sybolism you have attached to it... get rid of them all and just say... Im A Sexual Person