why do girls get hard nipples????

[kiddo67]

the other day i was in school and the girl beside me had her nipples hard and the room temperature was normal. is there more reasons???:what::what:

[Silicate Wielder]

she may have been sexually exited, i know sometimes girls nipples will get hard when the nipple is rubbed or touched enough.

[hedgemor]

I think it is like, maybe, an erection equivalent for guys...

[boonsim]

The same reason guys do??? I'm not sure.

[ImCoolBeans]

I know when I catch a draft the right way it happens to me too, and I'm pretty certain most guys as well lol.