Swinging Sorority / Strange Roomates by Edward McCallin; Chris Harrison

'SWINGING SORORITY: No one suspected what went on behind the ivy-covered walls of the sorority house, where pretty young girls went through strange initiations into the forbidden world of love. STRANGE ROOMMATES: The two young girls had always been close friends, but it wasn't until they began living together that they discovered just how close they could be - or the strange ways in which they could tease and torment each other with their bodies.'