Sex between a man and a woman is commonplace. But if you add a little attraction, and love and sensuality in large quantities, then this is already a plot for writing a whole book. Erotica is an integral part of a healthy relationship between partners. Sexual desire is an instinct, just like hunger, thirst, sleep. Designed to relieve stress. But eroticism is designed to fill a person with special energy, an irresistible desire, which acts as an eternal flame, an engine and a force pushing for development. Erotica consists of understatement, incompleteness, but this is what excites the imagination.