Women trading sex for male attention is how most casual sex happens, or FWBs. It is the attention from chad or whomever that is of value. Lots of women having all that sex are not even high sociosexuality, they are just doing it for the attention, and loving attention is a stronger prediction of n count for them. Women who love sex can just as easily end up having sex with one or a few men, while women who love attention rarely end up getting it from a small number of men.