I think this is quite an important article

Dr Trayce Hansen, writes that "Research by social scientists, although not definitive, suggests that children reared by openly homosexual parents are far more likely to engage in homosexual behavior than children raised by others. Studies thus far find between 8% and 21% of homosexually parented children ultimately identify as non-heterosexual. For comparison purposes, approximately 2% of the general population are non-heterosexual."

And significantly, the researchers are hiding their findings under phrases such as "the large majority of children who grew up in lesbian families identified as heterosexual."   The authors (Golombok and Tasker, 1996) were less forthcoming with the fact that "16 percent of those reared by lesbians had homosexual or bisexual levels of same-sex attraction".