Notes:

Actually, there is a very clear difference in the feeling of each individuals species. For example, a female horse would have to have genitalia that suits the penis of the male horse, while the female human would need one that allows sexual intercourse with a male memeber of her species. Of course, there are some similarities, but they are perhaps negligible due to the vastly surpassing number of differences. That said, I still find both of them attractive. So sue me.