I think sexual expression that cannot injure an individual is great between consenting adults.

I think a lot of fetishes are imaginative play-outs of one's individual creativity; whether one likes sucking on or nail painting the partner's toes, which, is probably an individual quirk, just as whether one does whatever with toes or fingers.

I am reminded of social "styles" in sexual expression; how it was felt to be shocking to see a woman's legs back a couple hundred years ago and now we scratch our heads about that and can't imagine what the problem may have been. We know St. Paul wanted women's heads covered a couple thousand years ago and that back then, women's hair was thought to be a problem for men, the woman's long hair had "power". I wish!