How does a member feel when erect? ⇐ Incest

[Anonymous]

Hi all.
Guys, tell me how your penis feels when erect? That is, not the skin itself, but the body inside. I threw it to my brother and noticed that when I rub the skin of my penis with my fingers, his body is not smooth inside. The sides seem to be a little porous, and the upper part has hard tubercles, as it were. When lying down this cannot be felt. This is fine? What about you? Please don't make fun of me, I haven't had many dicks to compare. This worried me a little. The upper part of the penis is really ribbed. Small tubercles, as it were, can be clearly felt from the head to the pubis. They are not round, they are different.
Does it ever happen to you that your penis gets very hard when at rest?