We know so little about sex, but we do it so often! This book is about sex in all its manifestations. This book answers 69 of the most interesting questions about sex. And 69 full answers that are based on research by scientists (anthropologists, evolutionary psychologists, neuroscientists, gynecologists, andrologists and other “logists”). Here are 69 stories from the lives of ordinary people who faced problems in their sex lives. And the solutions to these problems are also here. Thanks to this book, you will learn that 15 centimeters is not small, but even more than the average capacity of a woman. You will also learn that three minutes of friction is three times more than the norm established by the International Association of Sexual Medicine (IASM). There is a chapter about threesomes. There is also about sex for two. And there’s even a chapter about sex in one. Find out what happens if you remove sex from your life (spoiler: it’s okay). Determine your sexual constitution and learn a lot of interesting things about your partner. But if you are a professor of fucking sexual sciences and already know all this information, then you will not find anything new in this book. Although you won’t lose anything from the old one. Just get a dose of good mood. That's all! That's all! The book contains obscene language!