How is she not an adult yet? How do you define it? Let's be clear. I am not planning on drugging her or raping or anything. It is likely I never get the chance to take her out, but if she accepts, I would take her on a genuine date, movie, dinner, no drinks unfortunately, and see what happens. If I get a kiss, great. If I had a good time I would do it again. I am not preying on her and I am not planning on forcing anything on her. If after knowing her it leads to sex, then great. I don't understand your logic above. It is not sinning.
I agree with you, it is not a sin. However, there is an age gap between the two of you. Generally speaking every ten years is a generation. Since you are at least 12 years older than she is, you are technically a generation removed. A lot changes from one generation to the next. I am not saying you'll have nothing in common, but ultimately, you should have more than sex in common. On the other hand, I know people who were a generation apart who married and lived long lives together. It can happen. Being completely honest, what is it about this woman that you are most attracted to and likewise, what do you suppose it is about you she finds interesting?