There's nothing wrong with sexual feelings in themselves, so long as they are straightforward and not sneaking or sly. The right sort of sex stimulus is invaluable to human daily life. Without it the world grows grey.
I look on the opposite sex with something like the admiration with which I regard the starry sky on a frosty December night. I admire the beauty of the Creator's workmanship, I am charmed with the wild but graceful eccentricity of the motions, and then I wish both of them goodnight.
Sex was always surrounded by taboos, and I don't see it necessarily as a manifestation of evil. I think that sexuality is first and foremost the way that God chooses for us to be here on earth, to enjoy this energy of love in the physical plane.