Why does pinching ur nipples make them hard?

Question

this is something i need to know

Answer 1

YES

Answer 2

the muscles around ur nipples are made of non-volunteering muscles...

after pinching, the muscles sence fatigue, and they try to minimise the fatigue by shrinking and repairing the worn cells

thats why they shrink

after the fatigue is lost, thsy come to their normal form

Answer 3

why's everyone saying yes? he asked why not does it happen to you.

nipples contract/become hard when your cold. its the bodys mechanism of conserving heat. the less surface area there is -the less heat you loose. (its the same with your ball-sack) when you pinch them you stimulate a nerve and the same contraction-to-save-heat occurs.

Answer 4

There's like nerves in there  that if simulated they make your nipples all pointy..

Answer 5

For me it does... Along with a pleasurable tingle.

Answer 6

CUZ your horny man

Answer 7

because pinching them increases blood flow which essentially causes them to blow up just like pumpng up your bicycle tire, the more air you put in the harder it gets. The same basic principle applies to your nipple.

This is a simplified version of events, there are pleasure factors to take into account and the feeding of babies but it all boils down to an increased blood flow regardless of the reason

Answer 8

well its like when a great kissing guy kisses you its a turn its somethin erotic when he touches you there its a turn on is all meaning you get heated up.

Answer 9

so when the baby wants milk he can suck it, men don't really need nipples, nature was too lazy to get rid of them

Answer 10

That is my tender spot.  That is something I do know.