Hi I am 14 and I have had this pimple on my penis for as long as I can remember. Every time I touch it it hurts, I don't want to go to the doctor because I am embaressed. I haven't had sexual intercourse, can you please tell me what you think it is and what I should do thanks

You have to go to the Doctor. It could be a boil, it could be an abscess, it could be an ingrown hair. Don't be embarrassed your Dr. deals with things like this all the time.