One more question...
Would herpes blisters heal at different times if they occured at the same time?
The truly first outbreak almost always involves the genitals or anus. But that can be asymptomatic. Later recurrences on the buttocks could occur, and could be the first symptom someone notices.
Only 2 spots 2 inches apart is atypical for HSV infection. I doubt you have herpes.
Do people have first genital herpes outbreaks on their butt? Is this possible?
Obviously I cannot say what the lesions are without seeing them. There is nothing in your description that particularly suggests herpes. Probably the most likely explanation is pimples. But see a provider if they persist or recur, or if you otherwise remain concerned.
HHH, MD