[Oral sex isn’t necessarily safe sex](https://www.bedsider.org/features/270). [Sexually transmitted infections (STIs) like gonorrhea, chlamydia, and herpes can be transmitted orally](https://www.bedsider.org/features/165)—that is, from mouth to genitals and vice versa—especially if either of you have an open sore or bleeding gums. Using condoms or dental dams is a great way to make oral sex safer—and safer is more fun!