Ever since you were a little child, you were given the message that your genitals
were somehow dirty, mostly because they are associated with urination.
So I understand why you may think it an alien concept to put your mouth
anywhere near another person’s penis or vagina. So let me start by saying
that oral sex is no more dangerous than intercourse, and is probably a lot
safer. That’s not to say you can’t catch a disease from oral sex, because you

In our society, more people are willing to engage in sexual activity together
than to talk about it, and a good deal of the blame for sexually transmitted
diseases comes from this failure to communicate.