Kamasutra 5.6.33

5.6.33

tathā praveśibhir eva jñātisaṃbandhibhir nānyair upayujyante strairājakānām/

Now in the country of the Aparatakas the royal ladies are not well protected, and consequently many young men are passed into the harem by the women who have access to the royal palace. The wives of the King of the Ahira country accomplish their objects with those sentinels in the harem who bear the name of Kshtriyas. The royal ladies in the country of the Vatsagulmas cause such men as are suitable to enter into the harem along with their female messengers. In the country of the Vaidarbhas the sons of the royal ladies enter the royal harem when they please, and enjoy the women, with the exception of their own mothers. In the Stri-rajya the wives of the King are enjoyed by his caste fellows and relations. In the Ganda country the royal wives are enjoyed by Brahmans, friends, servants, and slaves. In the Samdhava country, servants, foster children, and other persons like them enjoy the women of the harem. In the country of the Haimavatas adventurous citizens bribe the sentinels and enter the harem. In the country the Vanyas and the Kalmyas, Brahmans, with the knowledge of the King, enter the harem under the pretence of giving flowers to the ladies, and speak with them from behind a curtain, and from such conversation union afterwards takes place. Lastly the women in the harem of the King of the Prachyas conceal one young man in the harem for every batch of nine or ten of the women.