medhram tasya vinirbhinnam
sva-dhisnyam ka upavisat
medhram—genitals; tasya—of the gigantic form; vinirbhinnam—being separated; sva-dhisnyam—own position; kah—Brahma, the original living creature; upavisat—entered; retasa amsena—with the part of the semen; yena—by which; asau—the living entity; anandam—sex pleasure; pratipadyate—experiences.
When the genitals of the gigantic form separately became manifest, then Prajapati, the original living creature, entered into them with his partial semen, and thus the living entities can enjoy sex pleasure.
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