Solitary Sexが好きなら

"This is the first cultural history of the world's most common sexual practice: masturbation. At a time when almost any victimless practice has its public advocates and almost every sexual act is front-page news, the easiest and least harmful one is embarrassing, discomforting, and genuinely radical when openly acknowledged. But this has not always been the case. The ancient world cared little about maturbation; it w…