She and her girlfriends had invented a new game that they called “spin the cock.” They’d take turns being the spinner. Each of them would drop their panties and bend over, facing out from the circle with their eyes closed. The spinner would pick one of their boyfriends, blindfold him, and spin him around in the middle of the circle. He’d have to find his way to the edge and he’d get to fuck either hole. Neither of them were allowed to take off their blindfolds until after he came. After having her asshole fucked so hard that she was sure her teeth rattled a few times, she felt his cock spasm and shoot its load deep up her ass. When she took off her blindfold, she was surprised to see that her stepbrother had been the cock! He had been dating her roommate for a year.