I've always been a fan of nipples, at least female nipples. Male nipples don't do a lot for me, though I think their lack on a torso would be more disturbing than their presence. I have, for as long as I can remember, been fascinated with nipples in their vast myriad of shapes, sizes, colors, etc. I don't know if it's their erectile nature, or the feel of them between my fingers or lips. I don't have a strong preference for any particular type of nipple--small, round, quarter-sized nipples are just as hot to me as big saucer-sized jobbies. I do, however, find long nipples particularly sexy. Anyway, yay for nipples!