Safer sex is not just about pregnancy. Although two people with testicles, or two people with ovaries, do not have to be concerned about pregnancy, there is still a risk for STIs and HIV. Condoms and dental dams are used to cover the penis, anus or genitals before starting and during anal or oral sex. Use a condom or a dental dam every time you have sex (anal, oral, vaginal, hand) to lower your risk of STIs and HIV.