PS, I'm willing to be friends with her[/quote]Tell her that, she'll get the message.
In all seriousness, it's never too late nor too early to learn to be forthright. You learn, btw, by doing. People appreciate honesty, as long as said "honesty" is not cruelty or carelessness masquerading as honesty.
You said you enjoyed your date. This indicates to me that the girl was not an airhead twit. Be forthright with her, it will take some courage on your part, but you will be a better man for it, and she will tell her impossibly hot girlfriend, who will then not be able to rest until she has physically satisfied you in every way possible.
By "forthright" I means the following: Full, frank disclosure of your full range of feelings (and lack thereof), spoken as though you expect her to understand. Speak your truth, and you will be amazed at how many folk of either gender can and will rise to the occasion. After all, what is it that you want most from others, bullshit or the truth?
Even though some may react emotionally in the short term, the truth endures, is its own reward, and will get you laid, my son.