I have several comments on this:
- To begin with, I think more women suffer from this problem than men – the world is full of breast men, and has but few breast women, and most couples are heterosexual.
- Second, male nipples can be erogenous – I know, being a male who’s sensitive to nipple stimulation.
- Third, the nipples have lots of nerves both in people coming from bare-breasted and in people coming from cover breasted societies – though individuals of both sexes and all cultures might find that stimulated nipples irritate rather than please.