Welcome to the forum and thanks for your question.
From your description, it is clear that whatever your penile "bumps" may be, they are not warts or any other STD. Your self description that they look like Fordyce spots and/pearly penile papules may be accurate, and Dr. Kaur agreed with that on the dermatology expert forum. In any case, if they are only visible when erect or when the skin is stretched, probably they are nothing abnormal.
On this forum, we do not examine posted clinical photos. We are not dermatologists, and this would come too close to practicing medicine from a distance, which is not the purpose of this or other online medical forums. If you feel you need a definitive diagnosis, you will need to be examined professionally in person.
In the meantime, don't worry. I'm sure this is no important health problem.
Regards-- HHH, MD
I can post more pictures if needed. I don't really see these bumps when not erect.