Sex is still a taboo topic in many parts of the world, but 50 years after the sexual revolution, the topic is shared, focused and spread in the West.
The growing fascination with sex has driven thousands of studies around the world.
Nigeria, Mexico and India are among the world's highest levels of sexual satisfaction, according to a study.
The emphasis on sexual pleasure seems to be increasing.
In 2014, consumers around the world spent about $15 billion on sex toys, which is expected to rise to $52 billion by 2020.
But some countries are actually losing their sexual impulses.
In Japan, many unmarried men and women remain virgins at the age of 34 and often remain indefinitely.