SB 5.25.5

yasyaiva hi nāga-rāja-kumārya āśiṣa āśāsānāś cārv-aṅga-valaya-vilasita-viśada-vipula-dhavala-subhaga-rucira-bhuja-rajata-stambheṣv aguru-candana-kuṅkuma-paṅkānulepenāvalimpamānās tad-abhimarśanonmathita-hṛdaya-makara-dhvajāveśa-rucira-lalita-smitās tad-anurāgamada-mudita-mada-vighūrṇitāruṇa-karuṇāvaloka-nayana-vadanāravindaṁ savrīḍaṁ kila vilokayanti.
Word for word: 
yasya — of whom; eva — certainly; hi — indeed; nāga-rāja-kumāryaḥ — the unmarried princesses of the serpent kings; āśiṣaḥ — blessings; āśāsānāḥ — hoping for; cāru — beautiful; aṅga-valaya — on the sphere of His body; vilasita — gleaming; viśada — spotless; vipula — long; dhavala — white; subhaga — indicating good fortune; rucira — beautiful; bhuja — on His arms; rajata-stambheṣu — like columns of silver; aguru — of aloe; candana — of sandalwood; kuṅkuma — of saffron; paṅka — from the pulp; anulepena — with an ointment; avalimpamānāḥ — smearing; tat-abhimarśana — by contact with His limbs; unmathita — agitated; hṛdaya — in their hearts; makara-dhvaja — of Cupid; āveśa — due to the entrance; rucira — very beautiful; lalita — delicate; smitāḥ — whose smiling; tat — of Him; anurāga — of attachment; mada — by the intoxication; mudita — delighted; mada — due to intoxication with kindness; vighūrṇita — rolling; aruṇa — pink; karuṇa-avaloka — glancing with kindness; nayana — eyes; vadana — and face; aravindam — like lotus flowers; sa-vrīḍam — with bashfulness; kila — indeed; vilokayanti — they see.
Translation: 
Lord Ananta’s arms are attractively long, beautifully decorated with bangles and completely spiritual. They are white, and so they appear like silver columns. When the beautiful princesses of the serpent kings, hoping for the Lord’s auspicious blessing, smear His arms with aguru pulp, sandalwood pulp and kuṅkuma, the touch of His limbs awakens lusty desires within them. Understanding their minds, the Lord looks at the princesses with a merciful smile, and they become bashful, realizing that He knows their desires. Then they smile beautifully and look upon the Lord’s lotus face, which is beautified by reddish eyes rolling slightly from intoxication and delighted by love for His devotees.
Purport: 

When males and females touch each other’s bodies, their lusty desires naturally awaken. It appears from this verse that there are similar sensations in spiritual bodies. Both Lord Ananta and the women giving Him pleasure had spiritual bodies. Thus all sensations originally exist in the spiritual body. This is confirmed in the Vedānta-sūtra: janmādy asya yataḥ. Śrīla Viśvanātha Cakravartī Ṭhākura has commented in this connection that the word ādi means ādi-rasa, the original lusty feeling, which is born from the Supreme. However, spiritual lust and material lust are as completely different as gold and iron. Only one who is very highly elevated in spiritual realization can understand the lusty feelings exchanged between Rādhā and Kṛṣṇa, or between Kṛṣṇa and the damsels of Vraja. Therefore, unless one is very experienced and advanced in spiritual realization, he is forbidden to discuss the lusty feelings of Kṛṣṇa and the gopīs. However, if one is a sincere and pure devotee, the material lust in his heart is completely vanquished as he discusses the lusty feelings between the gopīs and Kṛṣṇa, and he makes quick progress in spiritual life.