Sis, I think this is a legitimate question. I have seen some women with long fingernails that use them in a sensual way to attract attention to themselves. The length of the fingernails affects the movements of the hands much in the same way that certain types of jewelry do. My advice to you would be to pray about it and let the Lord guide you. Don't let anyone tell you this is a silly question either, because the only silly questions to God are the ones we aren't willing to ask.