Srimad-Bhagavatam: Canto 11 - Chapter 1 - Verse 14
Sanskrit:
सेवतो वर्षपूगान् मे उर्वश्या अधरासवम् ।न तृप्यत्यात्मभू: कामो वह्निराहुतिभिर्यथा ॥ १४ ॥
ITRANS:
sevato varṣa-pūgān meurvaśyā adharāsavamna tṛpyaty ātma-bhūḥ kāmovahnir āhutibhir yathā
Translation:
Even after I had served the so-called nectar of the lips of Urvaśī for many years, my lusty desires kept rising again and again within my heart and were never satisfied, just like a fire that can never be extinguished by the oblations of ghee poured into its flames.