Last updated on September 12, 2020
Why are my nipples hard sometimes, but soft most of the time? Is this normal for a teenager?
Your nipples responds to sexual arousal just like your penis, but since the penis is bigger and more noticable when it becomes erect, many boys don’t notice that another part of their body is responding in a similar fashion.
Male nipples will also get hard when you are cold as the muscles contract to conserve heat.