Why is it cool that James Bond sleeps with tons of women but a female version would be unacceptable?

i love James Bond, but i know what youre saying, its not fair, theres a total stigma attached to us girls but never guys, when a girl sleeps around shes called a sl*t, wh*re, etc. but guys dont get called any names, its almost like its cool if the guy does it but its trashy when its a girl