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The appearance of vaginal and groin bumps in presence of a history of unprotected sex should be investigated for genital herpes, which is a STD. These lesions may or may not itch. The other STDs which should also be thought of are chancroid, syphilis, molluscum contagiosum, and venereal warts.
It is difficult to comment beyond this without examining the lesions. Discuss these possibilities with your gynecologist. Take care!
If they do not irritate you at all, are not in patches, and remain the same at all times, then they might just be the raised area around your hair follicles.