Hi, I noticed a little bump type thing on my dick the other day on the skin of the underside of my penis. It almost feels like a pebble and feels like its almost coming out of the skin. I attached a couple pics below of it. I'm a little worried, but not too bad. I've never even had sex so I know it most likely can't be an STD, which is why I'm a bit worried as to what it could be. I took a pic of the whole area (theres a couple smaller things like it), and an up close pic of the bigger one itself. Any help would be appreciated!