CC Ādi 4.209

kāma-gandha-hīna svābhāvika gopī-prema
nirmala, ujjvala, śuddha yena dagdha hema
Word for word: 
kāma-gandha-hīna — without any scent of lust; svābhāvika — natural; gopī-prema — the love of the gopīs; nirmala — spotless; ujjvala — blazing; śuddha — pure; yena — like; dagdha hema — molten gold.
Translation: 
The natural love of the gopīs is devoid of any trace of lust. It is faultless, bright and pure, like molten gold.