I have four open sores and three little pimple like bumps on the bottom of the buttocks near my vagina(but not actually in it) what could it be?

Genital Herpes: Genital herpes is more common in women than men & is caused by the hsv (herpes simplex virus). There are 2 types. Genital herpes is mostly caused by hsv type 2, but hsv type 1 can be spread via oral to genital contact. These infections can cause pain without a rash, or blisters that burst & form ulcers or what you are describing as open sores. It can be transmitted even without a rash!

Herpes: You need to see a doctor to know for sure, but herpes is a possibility. Other options would be dermatitis or molloscum contagiosum.