GIVING HEAD VERSUS RECEIVING IT
Giving head versus receiving it, well the person who receives oral sex is at the lowest risk, because they are only coming into contact with saliva. The person giving oral sex is at the highest risk of infection. If the person giving the blow job, or eating the person out, has cuts in their mouth, wears braces, has just brushed or flossed, has just eaten something that was rough enough to cut their mouth, or has open sores in or around the mouth, the risk increases drastically. The risk goes up because when you have open sores in your mouth, STDs and HIV can enter your bloodstream through the sores.