A book for those who wish to broaden their erotic horizons and pleasures, trying to walk on a knife edge between absolute power and servile humiliation, between pleasure and pain. You will know how to put into practice your wildest sexual fantasies, but under control, and obtain the greatest satisfaction from them. The forbidden and enjoyment in the palm of your hands. The relationships practiced by ordinary couples become routine and boring. The search for additional pleasure is the meaning of all sexual life. If you want to try something new and eccentric, the ideal is to enter the BDSM world; Where do you not want to look back at the past?