Indeed, A 2007 study in the New England Journal of Medicine found that younger people with head and neck cancers who tested positive for oral HPV infection were more likely to have had multiple vaginal and oral sex partners in their lifetime. Having six or more oral sex partners over a lifetime was associated with a 3.4 times higher risk for oropharyngeal cancer; cancers of the base of the tongue, back of the throat, or tonsils. Having 26 or more vaginal-sex partners tripled the risk. The association continued to increase as the number of partners in either category increased. Of greater concern is that "French" kissing may also potentially be a mode of transmission.
In any case, Mt. Sinai Hospital published a great infographic to further educate the risks of oral sex. Needless to say, if you find/see an abnormal bump in the mouth, talk to your doctor about it!
Of note, our office does offer the HPV spit test to see if HPV is present in the mouth/throat.
Human papillomavirus and oropharyngeal cancer. N Engl J Med. 2007 Sep 13;357(11):1157; author reply 1157-8
Human papillomaviruses in head and neck carcinomas. N Engl J Med. 2007 May 10;356(19):1993-5.
Case-control study of human papillomavirus and oropharyngeal cancer. N Engl J Med. 2007 May 10;356(19):1944-56.