harry
Favorite Answer
No one knows for sure but the main theory know is that sexuality is caused by hormone in the womb.
Original Sin
Human Sexuality; that would be Homosexuality (Attraction to the same-sex), Heterosexuality (Attraction to the Opposite-Sex) and Bisexuality (Attraction to Both Genders) has been proven to be inborn. This was done in a case study of Identical Twins, when both twins where born and one happened to be gay the other twin had a seventy percent chance of also being gay. Proving that Human Sexuality deals with Hormones in the womb, pre-birth.
caps
Because to be a gay you need to be gay meaning gays are gay because they are gay
Gaurav
May be straight persons are gays of gay
dougeebear
Born that way.
http://www.washingtonpost.com/posteverything/wp/2014/06/04/the-science-of-sexuality-how-our-genes-make-us-gay-or-straight/
http://news.nationalgeographic.com/news/2008/06/080616-gay-brain.html
http://fingerlengthdigitratio.wordpress.com/2008/10/19/your-finger-length-and-your-sexual-preference/
http://www.webmd.com/sex-relationships/news/20060626/birth-order-may-affect-homosexuality