This species is the only non-primate to exhibit this behaviour  Oral sex has been observed in the animal kingdom among many species. Certain kinds of plastic wrap are manufactured to be microwaveable and are designed to have pores that open when heated, but there also exists no scientific research on what effect, if any, this has on disease transmission when used during oral sex. Preserving virginity A late 19th century Beijing hand scroll depicting oral sex Oral sex is commonly used as a means of preserving virginity , especially among heterosexual pairings; this is sometimes termed technical virginity which additionally includes anal sex , mutual masturbation and other non-penetrative sex acts, but excludes penile-vaginal sex. Plastic wrap may also be used as a barrier during oral sex, but there exists no conclusive scientific research regarding how effective it may or may not be at preventing disease transmission. In humans, there is no connection between the gastrointestinal system and the reproductive system , [nb 1] and sperm ingested by the woman would be killed and broken down by acids in her stomach and proteins in the small intestine. Watch her doing a blowjob, playing with sex toys and fucking hard to wild mutual orgasm together with her lucky boyfriend 7. Giving head — A common slang term for giving oral sex to either a man or woman is giving head, from the term head job in contrast to hand job , manual stimulation. Oral sex is not necessarily an effective method of preventing sexually transmitted infections STIs , although some forms of STIs are believed to be less commonly spread in this way, and oral sex has been recommended as a form of safe sex. Here you can see hot and horny mature women getting fucked deep into their butt holes, bride sucking cock of her fiance at home, before wedding ceremony, secretary giving a head for her boss after job hours, shared wife getting her tight ass fucked hard and pink piussy opened wide in front of pervert husband filming it, girlfriend enjoying her first anal sex, aqnother gf looking at boyfriends eyes while his buddy fucks her sweet pussy, beautiful girls sucking big cocks of their friends taking pov sex pictures and more! My pretty girlfriend doing a wonderful blowjob for me, sucking my dick head so tight so i cum fast into her mouth. The study found that 36 percent of the cancer patients had HPV compared to only 1 percent of the healthy control group. She is a perfect wifey, looking so fucking hot at her middle age. Additionally, in lesbian culture, several common slang terms used are carpet munching, giving lip, lip service or tipping the velvet a faux-"Victorian" expression invented by novelist Sarah Waters. While any exposure to a partner's semen appears to decrease a woman's chances for the various immunological disorders that can occur during pregnancy, immunological tolerance could be most quickly established through the oral introduction and gastrointestinal absorption of semen. Forced fellatio is often called Egyptian rape or simply Egyptian; this goes back to the time of the Crusades when Mamluks were alleged to force their Christian captives to do this. Cunnilingus and Fellatio Cultural views on oral sex range from aversion to high regard.