i can't see how unless he is very lucky and talented. you don't get genital herpes by touching someone with your mouth the most you'd get is oral herpes. you don't get any kind of herpes by touching an uninfected person. so the only way a man could get genital herpes by giving an uninfected woman oral sex is if the female had just had sex with someone with the condition and he left his fluids on her then another man had oral sex with her then gave himself fellatio. highly unlikely.
can a male get genital herpes from performing oral sex on uninfected female?