They could be pearly papules or fordyce spots. Please post in the teen or men's health forums. You do not have any std issue because you have never had sex.
All sorts of bumps can happen in the groin area for boys and girls. It is not an STD (sexually transmitted disease) because you have never had any sexual activity. Why don't you ask your mom or dad?
Again. Please post on the Men's health forum or dermatology forum. Since this is not std related, you will be better off posting in one of those forums for ideas on what is causing your condition.
In community of men's health or sexual health, some one has given reply on similar issue. It is a recent entry. Peas search this entry. I am sorry I do not remember the poster's name.