i just watched 60 minutes, and they were investigating if teh ghey was genetic, or at least nature, not nurture. anyway, they found that the more older brothers a guy has, the more likelihood that he is gay (unless he’s left-handed -odd, i know). this is a proven fact over and over. weird!
they think it has something to do in the womb, like the female body detects a “foreign” object (male hormones in a female body) and compensates each subsequent male child, producing more estrogen to get rid of the foreign object. huh!
they found no similar explanation for lesbians.