CC Ādi 4.163

premaiva gopa-rāmānāṁ
kāma ity agamat prathām
ity uddhavādayo ’py etaṁ
vāñchanti bhagavat-priyāḥ
Synonyms: 
prema — love; eva — only; gopa-rāmānām — of the women of Vraja; kāmaḥ — lust; iti — as; agamat — went to; prathām — fame; iti — thus; uddhava-ādayaḥ — headed by Śrī Uddhava; api — even; etam — this; vāñchanti — desire; bhagavat-priyāḥ — dear devotees of the Supreme Personality of Godhead.
Translation: 
“The pure love of the gopīs has become celebrated by the name ‘lust.’ The dear devotees of the Lord, headed by Śrī Uddhava, desire to taste that love.”
Purport: 

This is a verse from the Bhakti-rasāmṛta-sindhu (1.2.285).