I have heard someone -I think it was Chloe Fisher - say (rather tongue in
cheek) that no one needs nipples to feed as babies breastfeed, not nipple
feed !! Food for thought? :)

When I asked her how she got
>started on the artificial nipple, she blurted that she "didn't
>have nipples". Well, THAT startled me, as you can imagine. I was
>trying to picture how this silicon nipple could help this poor,
>poor woman with this congenital abnormality of being born with
>no nipples.