A Simple Logic

I just had an argument with a girl I know. She was saying how unfair it is that "If a guy screws different girls every week, he is a legend, but if a girl sleeps with just two guys in a year, she's a slut."

So in response, I told her that "If a key opens lot of locks, then it's a master key, but if a lock is opened by lots of keys, then it's a shitty lock."

That shut her up!!!