Bisexuality in males revisited in new study; draws criticism for… Bisexuality in males revisited in new study; draws critique for interpreting orientation that is sexual genital arousal. The research is just one of the very very first scientific attempts at differentiating between homosexual and bisexual males. Some 2 % of males in the usa determine as bisexual. But, for many years, some sexuality scientists have actually questioned whether real bisexual orientation exists in men. In 2005, J Michael Bailey, a…