Savin-Williams, who is a professor of human development at Cornell. Some men have it, too, and it is reflected in their pupils,' said co-researcher Ritch C. 'We can now finally argue that a flexible sexual desire is not simply restricted to women.
The majority of men who identified with that orientation did respond to the sexual videos of both men and women. The study did have some surprising results on men who said they were bisexual. The physical response seems to be 'protective,' according to Rieger. Primates show a lot of forced copulation that can be 'brutal and painful' to females. The most plausible explanation for the female response is evolutionary. Their body is not connected to their mind, which is very different from guys.' 'They respond to anything that is in some way sexual,' said Rieger.
