A man comes home to find his step-sister and her girlfriend waiting for him worshipping each others feet. Both girls have shackles around their wrists and ankles .They say they each want to suck his dick while he fucks and tickles the feet of the other. They each take turns sucking his dick while he tickles and fucks the other girl's feet. Finally he cums on all four of their feet as they beg for it. The girls then say they know his secret and it's awakened a craving in both of them. They say that they want to cut off each other's feet and do so