Are there any societies where homosexuality is predominant?

In the Sambia tribe, New Guinea, as early as age 7, young boys are expected to “suck the penis of a mature boy every night and swallow the sperm”. Boys who refuse are forever treated as children within the context of their community, because “without regular ingestion of male seed, the Sambia believe, boys will never grow up into strong, mature men.” At the age of 15, the boys are considered mature enough to provide their own genitals for the younger boys to felicitate. Performing fellatio on a younger boy is strictly forbidden; as it is considered stealing his manhood because it results in a loss of semen from the growing boy. As soon as the boys marry, they cease to engage in homosexual contact, but often times, since they are so estranged from female sexuality and coitus, they ask their new brides to wear a bag over her head and fellate them on their wedding night. Interestingly, according to Loving Boys Vol. 1, “After 10 to 15 years of exclusive homosexual activity carried on by 100 % of the Sambia population, the incidence of adult homosexual orientation is only 5 % – exactly the same as in Western society.”