Kamasutra 1.5.5

1.5.5

sa yadā manyate svairiṇīyam//

Nayikas, therefore, are of three kinds, viz., maids, women twice married, and public women. Gonikaputra has expressed an opinion that there is a fourth kind of Nayika, viz., a woman who is resorted to on some special occasion even though she be previously married to another. These special occasions are when a man thinks thus:—

(a) This woman is self-willed, and has been previously enjoyed by many others besides myself. I may, therefore, safely resort to her as to a public woman though she belongs to a higher caste than mine, and in so doing I shall not be violating the ordinances of Dharma.