Between the Sheets by Robin Wells
Coxeman 02 A HARD ACT TO FOLLOW by Troy Conway
Erotica from Penthouse by Marco Vassi, Edward Springer
Essays in War-Time by Havelock Ellis
Finding Your Feathers by Nicola George
He Comes Next by Ian Kerner
Letters to Penthouse III by Penthouse International
Letters to Penthouse IV by The Editors Penthouse of Magazine
Letters to Penthouse V by The Editors of Penthouse Magazine
Letters to Penthouse VI by The Editors of Penthouse Magazine
Letters to Penthouse VII by The Editors of Penthouse Magazine
Letters to Penthouse XI by Penthouse International
Letters to Penthouse XII by Penthouse International
Letters to Penthouse XIII by The Editors of Penthouse Magazine
Letters to Penthouse XIV by Penthouse International
Letters to Penthouse XIX by Penthouse International
Letters to Penthouse XV by Penthouse International
Letters to Penthouse XVI Hot and Uncensored by The Editors of Penthouse Magazine
Letters to Penthouse XVII by The Editors of Penthouse Magazine
Letters to Penthouse XVIII by Penthouse International
Letters to Penthouse XX by Penthouse International
Letters to Penthouse XXI by Penthouse International
Letters to Penthouse XXIII True Confessions by Penthouse International
Letters to Penthouse XXIV Sex, Lies, and Sins by The Editors of Penthouse Magazine
Letters to Penthouse XXIX by Penthouse International
Letters To Penthouse XXV by Penthouse International
Letters to Penthouse XXVI by Penthouse International
Letters To Penthouse XXVII by Penthouse International
Letters to Penthouse XXVIII by Penthouse International
Letters to Penthouse xxxi by Penthouse International
Letters to Penthouse xxxiv by Penthouse International
Letters to Penthouse xxxv by Penthouse International
Letters to Penthouse xxxvi by Penthouse International
Letters to Penthouse XXXX by Penthouse International
Penthouse by Penthouse International
Penthouse Uncensored by Penthouse International, Editors of Penthouse Mag
Penthouse Uncensored V by Penthouse International
Penthouse Uncensored VI by Penthouse International
Penthouse Unleashed by Penthouse International
Penthouse Variations by Penthouse International
Sex / Avoided subjects Discussed in Plain English by Henry Stanton
Sex--The Unknown Quantity / The Spiritual Function of Sex by Alexander J. McIvor-Tyndall
She Comes First by Ian Kerner
Sins and Secrets by Carolyn Chambers Sanders
Slow Sex by Nicole Daedone
Studies in the Psychology of Sex, Volume 1 by Havelock Ellis
Studies in the Psychology of Sex, Volume 2 Sexual Inversion by Havelock Ellis
Studies in the Psychology of Sex, Volume 3 by Havelock Ellis
Studies in the Psychology of Sex, Volume 4 Sexual Selection In Man by Havelock Ellis
Studies in the Psychology of Sex, Volume 5 by Havelock Ellis
Studies in the Psychology of Sex, Volume 6 by Havelock Ellis
The Penthouse Erotic Video Guide by Penthouse International
The Perfect Orgasm by Joan Elizabeth Lloyd
The Porn Trap by Wendy Maltz, Larry Maltz
The Sexual Life of the Child by Albert Moll
The Sexual Life of the Child by Eden Paul
The Sexual Life of the Child by Edward L. Thorndike
The Sexual Question / A Scientific, psychological, hygienic and sociological study by Auguste Forel
The Sexual Question / A Scientific, psychological, hygienic and sociological study by C. F. Marshall
The Social Emergency / Studies in Sex Hygiene and Morals by Charles William Eliot
The Social Emergency / Studies in Sex Hygiene and Morals by William Trufant Foster
Theologie hindoue. Le Kama soutra. by Vatsyayana
Theologie hindoue. Le Kama soutra. by Pierre Eugène Lamairesse
Three Contributions to the Theory of Sex by Freud, Sigmund, 1856-1939