Śrīmad-Bhāgavatam 3.6.19
SB 3.6.19
Open the full passageSanskrit
meḍhraṁ tasya vinirbhinnaṁ sva-dhiṣṇyaṁ ka upāviśat retasāṁśena yenāsāv ānandaṁ pratipadyate
Translation
When the genitals of the gigantic form separately became manifest, then Prajāpati, the original living creature, entered into them with his partial semen, and thus the living entities can enjoy sex pleasure.