The Kama Sutra of Vatsyayana - The Original Classic Edition. Vatsyayana Vatsyayana

but in subsequent unions on the same day the reverse of this is the case. With the female, however, it is the contrary, for at the first time her passion is weak, and then her time long, but on subsequent occasions on the same day, her passion is intense and her time short, until her passion is satisfied.

       On the different kinds of Love.

       Men learned in the humanities are of opinion that love is of four kinds, viz.: Love acquired by continual habit.

       Love resulting from the imagination. Love resulting from belief.

       Love resulting from the perception of external objects.