A study in Adolescence found: A disproportionate percentage--29 percent--of the adult children of homosexual parents had been specifically subjected to sexual molestation by that homosexual parent, compared to only 0.6 percent of adult children of heterosexual parents having reported sexual relations with their parent...Having a homosexual parent(s) appears to increase the risk of incest with a parent by a factor of about 50.60
In http://www.orthodoxytoday.org/articles/DaileyGayAdopt.php