In his latest sex manuel, Stephan Niederweiser goes ´back to basics´: the noble art of cock n' ball masturbation. This is one of the most popular kinds of sex, yet people are reluctant to discuss it. Do It Yourself places the emphasis on personal instincts and fantasies, although it goes without saying that you don´t have to try everything on your own. This book tells you how to enjoy yourself and other people--and does so in a clear and humourous way. Have fun!