Skipper, try not to worry. From what you've posted, I'd consider you of a relatively high moral position. I wouldn't worry that once your virginity is gone you'd instantly embark on a wild string of random sexual escapades. That doesn't really seem to fit you, at least from what I know of you. Your morals are what stop you from making bad decisions, not a little membrane-esque thing.

I would tell you though to not have sex simply to do it and "get it out of the way." That's not how you're going to want to do this, and I can promise you, if that's your motivation for your first time, that's setting yourself up with less than you deserve, and likely a degree of future regret. You deserve your first time to be special, not just something to get out of the way, you know?

I would tell you it's well worth the wait. I know it sucks, believe me. I'm holding on to my "v-card" as well, to be honest, and I know what the pressure can be like. But when that time comes, I don't think you'll regret the wait.

Furthermore, though I'm a male and not bisexual (thus I advise you take this as it relates to you, so perhaps with a grain of salt), I don't think it really matters if your first time was with a girl. It's not the...well, the hymen, that dictates virginity (arguably...some cultures see that differently, as well as some people stateside). It's the moment you share with someone that dictates that, at least as I see it.

So please, don't worry about this "other side." I can almost assure you you'll be the same person you were before as after. Just don't rush into this just to do it.