Erich Fromm. A man and a woman (№ 251481)

There are many motivations of sexual desire non-sexual origin. Vanity is one of the most powerful agents of sexual desire, perhaps the strongest compared to the others, however, loneliness, and protest against the existing relations can also be a sexual impulse. The man who feels that he is full of strength and energy for sexual adventure and sexual appeal of women provokes it, is actually at the mercy of her vanity: he wants to prove his superiority over other men.