The chances of getting HIV through oral sex are much less than from anal or vaginal sex. Sharing needles, syringes, rinse water, or other equipment (works) used to make injectable drugs with someone who has HIV.Having many sex partners or having other STDs can increase the chances of getting HIV through sex.Vaginal sex is the second highest-risk sexual behavior.Receptive anal sex (bottoming) is riskier than insertive anal sex (topping). Anal sex is the highest-risk sexual behavior.
