Because you're horny?
Because their horny and so excited
It means you're horny or have chills.
It is when somebodys nipples are hard from either being cold or even horny. It is also referred to as "RT"
We don't. They get hard when it's cold or some women get hard nipples when they are aroused. Same reasons some men have it actually.
To make your nipples hard, you need to sexually stimulate yourself. Massage your boobs, rub them, squeeze them, etc. Also, flick, lick, and touch your nipples as much as possible. Your nipples will get hard once you're horny and sexually stimulated.
When you feel horny your boobs may get harder
No, it doesn't. It means you are horny or you're cold, or you want to have sex or masturbate. It's normal.
no, if u r cold your nipples tend to get hard. Women will most always get hard nipples when aroused and most men wont, but some do. if u r Mae and get hard nipples when aroused it doesnt mean theres anything wrong it just happens.
they go hard and you blow your load.
Flick them, get cold like in a cold pool or super hot like in a shower. Or when u are horny they'll get hard (if you are a girl)
Penis (in men) Clitoris, nipples (in women)