In some cultures, such as Cambodia, Chinese in Southeast Asia, northern Manchu tribes along Amur River, Sambians in Papua New Guinea, Thailand, Telugus of India, Hawaii and other Pacific Islanders, briefly taking the penis of a male infant or toddler into one's mouth was considered a nonsexual form of affection or even a form of ritual, greeting, respect, parenting love, or lifesaving. According to some sources, it was an ancient Chinese custom for grandmothers, mothers, and elder sisters to calm their baby boys with fellatio. It has also been reported that some modern Chinese mothers have performed fellatio to their moribund sons as affection and means for lifesaving, because they culturally believe that when the penis is completely retracted into the abdomen, the boy or man will die.
Note: Certain things have been suggested to increase a person’s chances of getting HIV during oral sex, if exposed to an infected partner, such as having poor oral health, having bleeding gums or gum disease, having sores in the mouth or on the genitals, or being exposed to the “pre-cum” or “cum” (also known as pre-ejaculate or ejaculate) of an infected partner. However, no scientific studies have been done to show whether or not these factors actually do increase the risk of getting HIV or STI from oral sex.
When was the last time you had sex with just your hands? What are your first thoughts when this question is posed? Many women haven't brought a man fully to climax with just their hands since high school or college. Some think it "doesn't count as sex." Others are simply at a loss, claiming they don't know how. Or, you might think a man can do that all on his own, so why would you bother?
People give various reasons for their dislike of oral sex. Some state that since it does not result in reproduction, it is therefore unnatural. Others find it less intimate because it is not a face-to-face practice, or believe that it is a humiliating or unclean practice; that it is humiliating or unclean are opinions that are, at least in some cases, connected with the symbolism attached to different parts of the body. Opposite these views, people also believe that oral sex "is one of the most intimate behaviors that a couple can engage in because it requires total trust and vulnerability."
Doctors used to think that human papillomavirus (HPV), the most common sexually transmitted infection in the United States, couldn’t affect the mouth. But recent research has them rethinking this notion. Scientists have now shown that the same high-risk strains of HPV that lead to cervical cancer can also be transmitted by oral sex and potentially cause head, neck, and throat cancer, as well.