Kissing is of four kinds, viz., moderate, contracted, pressed, and soft, according to the different parts of the body which are kissed, for different kinds of kisses are appropriate for different parts of the body.
When a woman looks at the face of her lover while he is asleep, and kisses it to show her intention or desire, it is called a “kiss that kindles love.”
When a woman kisses her lover while he is engaged in business, or while he is quarrelling with her, or while he is looking at something else, so that his mind may be turned away, it is called a “kiss that turns away.”
When a lover coming home late at night kisses his beloved, who is asleep or in bed, in order to show her his desire, it is called a “kiss that awakens.” On such an occasion the woman may pretend to be asleep at the time of her lover’s arrival, so that she may know his intention and obtain respect from him.
When a person kisses the reflection of the person he loves in a mirror, in water, or on a wall, it is called a “kiss showing the intention.”
When a person kisses a child sitting on his lap, or a picture, or an image, or figure, in the presence of the person beloved by him, it is called a “transferred kiss.”
When at night at a theatre, or in an assembly of caste men, a man coming up to a woman kisses a finger of her hand if she be standing, or a toe of her foot if she be sitting, or when a woman is shampooing her lover’s body, places her face on his thigh (as if she was sleepy) so as to inflame his passion, and kisses his thigh or great toe, it is called a “demonstrative kiss.”……………………..(The Kamasutra of Vatsyayana, part II,On Sexual Union)