Sex för kontanter gör blyg tjej till en slampa

How do you tell your girlfriend you wanna see her fuck another man? Financial problems make a good reason to talk her into fucking with some rich guy, but just sitting there and watching her take his dick in her mouth and pussy turns out to be no fun. She's always been a shy girl, but now she acts like a real slut riding dick with fierce passion and begging for him to fuck her harder.