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Jack Morin Books 

10 Rules Of Anal Sex by Jack Morin
Jack Morin, PhD, a San Francisco sex therapist and researcher, is the author of Anal Pleasure and Health.Anal Eroticism is surrounded by a powerful taboo. Yet millions of men and women - straight, gay and bisexual - are experimenting with anal sex. The anus, richly endowed with nerve endings and... >>More<<