Re: Small painless bump on penile shaft with raised borders.
Sorry, this isn't a forum for any photos (though it might help to more quickly/easily describe bumps). Could it be molluscum contagiosum? Google it for photos. If that's what it is, it is contagious and it will spread on you if you touch it (especially trying to "pop" it will make it spread). There are other things it might be too. Is that what it looks like? That's just the first thing I would guess from a little bit of reading about penis bumps, but there are other things it might be too (I especially thought molluscum because you said it was clear rather than white).
(Of course it can easily spread to your gf too, so she can't touch your penis until a few weeks after it's gone away. And these skin viruses contaminate any towels you use. Don't share towels with anyone, and always wash your hands really well if you ever touch it.)
Last edited by mc7; 12-11-2012 at 06:18 PM.