
How would one even know it's common? I don't remember them in porn (but I might be wrong since I hate breasts). But regardless this topic is old for me. I think my fuss was about the fact that when searching the term it usually goes with 'surgery'. How can one not get even a little freaked by that.
Thankfully only mums look that up

umm....ok.
Im not a mother, (im still pretty young), but i searched it up after a biology class about cancer.
some family members had it, and since its hereditary, i was scared i could get it too, so I searched for signs and symptoms about anything that could prove i had it.
You literally just need to search "inverted nipple percentage" and an article apears about it.
So I never before heard of Inverted nipples before and just discovered that I have them. I thought this was like the 'normal' look all nipples had when not erect. Gods, what am I learning 20years later......
The manga's are okay I guess? Nothing out of the ordinary nor bad, nice art