..............THEY DONT......................
Yes
It really depends on the guy.
During puberty many boys' nipples become very sensive and indeed some boys grow small breasts, which like the tenderness and increased sensitivity, generally reduces again as you pass through puberty. And remember that if you think that your nipples are senitive it might help you to realise just how sensitive your girlfriend's nipples are.
yes
Yes you can some girls like there nipples sucked on some don't you can
Well ye I had my nipples sucked and they got better
the girls like their nipplles being sucked because it makes them horny
A nipple suction device or a breast pump can be used to create a sensation of suction on the nipples. These devices work by creating a vacuum that draws the nipples into a chamber, simulating the feeling of being sucked.
Its a very sensitive part if the breast. It has a lot of nerves in it & it stimulates arousal.
Heckkk yess, it's very enjoyable
Inverted nipples are common and normal in males and females.