Not sure if this is considered a kink, but I've always been fascinated with videos I've seen of women visiting Glory Holes. I would love to visit one some day myself, but I've found they are usually in places I'm worried about visiting on my own. In any case, I really enjoy giving oral sex to guy friends, and i suspect a completely anonymous version of that would be really fun - no names, no personal history, no judgements, no recriminations, no faces - just big, beautiful cocks and cum spraying everywhere. I could spend hours there! Assuming there would be enough visitors willing to poke their cock through the hole.