I sort of always figure if a guy is bi, he really likes boys. If a girl is bi, she really likes boys, too. YAY, an issue I can
almost weigh in on. I have no idea how bisexuality works in the gay
male realm, but for gay women it may be different. Like L said if a girl is bi, she really likes boys too, at least that's what would always be in the back of my mind if I was involved with a bisexual girl. I always used to think that being bisexual was just a way to have your cake and eat it too without people calling you a dirty whoring slag. But I could be wrong

.
My theory is that there is no such thing as being "bisexual" its mainly just a phase where the person doesn't want to fully come out as gay yet. And Piano I actually agree with you on this front, mainly because I did the same damn thing. When I came out to my best friend (he's gay too, and we came out to each other at the same time) I thought I was ready to tell him that I was into girls, but at the last minute I chickened out and told him I was bi. As the words poured from my lips all I could think was "OMG, you're such a fraud!! You don't
like guys you idiot, you like girls and that's it!!" As some might say I used being bi as an excuse or a stepping stone to really help myself come to terms with my own sexuality. In reality it made me feel even worse because I had lied to my best friend and continued that lie within myself. A week later I fessed up and told him the
whole truth. He told me he figured out I was gay way back in Senior year when I performed at our school's talent show/coffee house. Apparently after I sang and played my guitar he noticed how flushed and giddy I looked when a really strikingly beautiful girl complimented and hugged me afterward. I wish he had let me know...it would have saved me a lot of time crying in my pillow.
Since we all seem to have theories regarding sexuality I'll throw mine into the mix. My theory is: Everyone's straight until they're NOT!! Thus why some lesbians (still hate that word) like the thrill of the chase and may go after exclusively straight women. Maybe I'm just lazy or I'm getting too old for that "chasing" business, but I'd rather go out with someone who won't feel "weird" afterward. Just too much DRAMA for Tofu. If I know good an well you're NOT gay, bi, pan, omni or whatever, I'll just be a really good friend and an even better drinking partner for you. Other than that it's a no-go for "Fun Land".
Finis
"I have the prettiest mother..."--Rhoda Penmark~~~ The Bad Seed