To spread HIV during sex, HIV infection in blood or sexual fluids must be transmitted to someone.
Sexual fluids come from a man's penis or from a woman's vagina, before, during, or after orgasm.
HIV can be transmitted when infected fluid gets into someone's body. You can't spread HIV if there is no HIV infection . If you and your partners are not infected with HIV, there is no risk. If there is no contact with blood or sexual fluids , there is no risk. HIV needs to get into the body for infection to occur.