Careful Ca renter, you are getting scary and moralistic. We aren’t all davelj. Oh wait we are.
You basically have two options, always wear a condom after doing a visual spot check for herpes sores, coupled with never having oral sex. Option two extend some trust to potential partners, but pre-screen them, your methods may vary.
Funny how this morphed from my appeal for a date, to a frank discussion on STD’s. I figure they are proof that god loves us and wants us to be happy, covered head to toe in latex.