How is the human immunodeficiency virus (hiv) transmitted to heterosexuals?

Same as heterosex: Hiv is transmitted by the virus present in body secretions deposited onto areas of either mucous membranes (rectal mucosa, oral mucosa or tonsils) where there are receptor sites to which the virus attaches. There are some forms of sexual activity in which individuals are more prone to bleeding, in which case these bleeding sites present a rapid route for viral entry.