[Stewie]

This isn't just confined to humans. There are instances within social animal groups where, following a fem/fem confrontation, all the males swarm in attendance around the winner and try to mate with her. This is similar to myself developing an enormous "boner" whilst watching Ronda Rousey pwn another girl in MMA. It's all to do with the concept of the Alpha-Female. As a male, you want to mate with the member of the opposite sex who possesses the best survival genes for your offspring. It's therefore inborn in us. Modern society has diminished the need for such stereoypes, but millions of years of evolution can't be dismissed over a century or two. It's just that the trait is more inherent in those of us who prefer the stronger, more aggressive type of woman.