Recommended: Motel Girl by A.E. Oliver (Olympia Press)_
Olympia Press has published, as an e-book, Motel Girl by A.E. Oliver (aka Valerie Grey). Dig that cover, kids.
Also at Mobipocket.
In this quartet of sordid and lusty stories, men and women and women and women come together in cheap motel rooms for tawdry sex and cheap thrills. They are the people you see all around you–teachers, cheerleaders, office drones–who put on a clean pubic face, but when behind closed doors in a $39/night room, they enter the twilight of forbidden pleasures and filthy desires.