NOT KNOWN FACTS ABOUT GANGBANG

Interest in anal intercourse has also originate from investigation in human immunodeficiency virus (HIV) transmission. Several studies have quantified the elevated danger of heterosexual transmission from a single act of anal intercourse as compared with 1 act of vaginal intercourse (Boily et al., 2009; Leynaert, Downs, & de Vincenzi, 1998; Powers,