Naraka-varṇana: The Hellish Planets and the Karmic Logic of Punishment
यस्त्विह वै सवर्णां भार्यां द्विजो रेत: पाययति काममोहितस्तं पापकृतममुत्र रेत:कुल्यायां पातयित्वा रेत: सम्पाययन्ति ॥ २६ ॥
yas tv iha vai savarṇāṁ bhāryāṁ dvijo retaḥ pāyayati kāma-mohitas taṁ pāpa-kṛtam amutra retaḥ-kulyāyāṁ pātayitvā retaḥ sampāyayanti.
यस्त्विह वै सवर्णां भार्यां द्विजो रेत: पाययति काममोहितस्तं पापकृतममुत्र रेत:कुल्यायां पातयित्वा रेत: सम्पाययन्ति ॥ २६ ॥
The practice of forcing one’s wife to drink one’s own semen is a black art practiced by extremely lusty persons. Those who practice this very abominable activity say that if a wife is forced to drink her husband’s semen, she remains very faithful to him. Generally only low-class men engage in this black art, but if a man born in a higher class does so, after death he is put into the hell known as Lālābhakṣa. There he is immersed in the river known as Śukra-nadī and forced to drink semen.
In Canto 5, Chapter 26, Śukadeva describes that grave, lust-driven sexual wrongdoing leads to specific hellish reactions, where the sinner is punished in a manner mirroring the offense.
He explains the workings of karma to warn Parīkṣit Mahārāja (and all listeners) against sinful life and to encourage dharma, self-control, and ultimately devotion to the Lord.
It teaches restraint and responsibility in sexuality: avoid lust-driven exploitation, honor dharmic conduct in marriage, and cultivate purity through sādhana (chanting, good association, and regulated life).