I can't tell anything from your description. Generally I do not view posted clinical photos and have not looked at yours. It's too close to practicing medicine on line; i.e., my role is to discuss risks and possible diagnoses, but never to make a specific diagnosis. For that you need to see a health care provider. Also, as you can imagine, I am leary of downloading files from people I don't know; please don't take it personally.
It would be easier to assess your risk for an STD if I knew more about your
sexualCauses of sexual dysfunction
Erection problems
Female sexual dysfunction
Sexual problems overview lifestyle and exposures. Herpes can be painless. Pimples can occur on the
penisCancer - penis
Curvature of the penis
Penis care (uncircumcised)
Penis pain. Warts can appear as red bumps. And then there is molluscum contagiosum; see several strings on MC on this forum.
Bottom line: Please see a health care provider. Good luck--
HHH, MD