According to Sexual Behavior in the Human Male by Alfred Kinsey and several other modern studies, the majority of humans have had both heterosexual and homosexual experiences or sensations and are bisexual.
Berdasarkan tulisan Alfred Kinsey yang berjudul Sexual Behavior in the Human Male serta beberapa penelitian modern lainnya, mayoritas manusia memiliki pengalaman atau sensasi heteroseksual maupun homoseksual sehingga mereka dikategorikan sebagai biseksual.