Recently, I was fortunate enough to have my first girl-on-girl experience at a GSBN outing. Now, it wasn't as risqué as your imagination might already have you believing, but it was intimate enough to confirm a notion that I've had for a very long time: Everybody likes girls. Girls are soft, gentle, generally kind and thoughtful and attentive; they feel nice to touch and to be around. This isn't to say that all girls are lesbians or that gay men aren't really gay, but I certainly believe that there's a little 'bi' in each of us.
Take porn for example. As a heterosexual female, I have a (debatably) healthy affinity for male masturbation, guy-on-girl/girl-on-guy, and "regular", though primarily male-gratifying, threesome and orgy videos (in addition to some other types that I'm far too conservative to mention in a public blog). But I find that few forms of sexual expression are as stimulating to watch as a female enjoy herself or another woman. Men: you are built for utility and we greatly appreciate that, but only a woman knows how a woman really likes to be touched, despite what your macho male egos and your macho male friends will tell you. So, it really isn't surprising that females can get so much satisfaction out of watching another woman enjoy herself (or participate in that enjoyment) because we actually know how she's feeling. While penises are fun to play with and look at and while I can imagine what is (or rather what isn't) going on in a guy's head when he's, um, enjoying himself or a lady, I am never going to experience a male orgasm or truly be able to appreciate the male sexual disposition.
I can't imagine ever switching teams when it really comes down to debating what side of the tracks to play on, but making out with my best friend did help me to better understand a different aspect of sexual attraction than I had previously considered. The penis will always be a highly valued instrument and men will always have their place in this world, but at the end of the day, when we're alone with ourselves and our imaginations and our computers… Everybody likes girls.