Look how she stands contrapposto, drink out to the side. She is the alpha female of the group as you can see if you closely look at her body language. She will have her way and go home with most of these females in the pic as she chooses. The average beta sports forum poster has probably averaged 2 dates in their entire lifetime and married and settled for the lesser of the two.
These chicks would rather go home with her and be fulfilled than to listen to a sniffling, whining beta-boy.
She's a female body guard. The rest are "entertainers".
When a customer gets a little "wild", she'll be like, "you wanna **** someone, I'm right here big boy." sometimes the "customer runs off screaming", and sometimes he settles for the bodyguard (cuz he sure as hell ain't touching the "entertainers")