Text 32]
Mohinī-mūrti Bewilders Lord Śiva
131
PURPORT
Lord Śiva cannot be victimized by  māyā . Therefore it is to be understood that Lord Śiva was being thus harassed by Lord Viṣṇu's internal potency. Lord Viṣṇu can perform many wonderful activities through His various potencies.
parāsya śaktir vividhaiva śrūyate svābhāvikī jñāna-bala-kriyā ca (Śvetāśvatara Upaniṣad 6.8)
The Supreme Lord has various potencies, by which He can act very efficiently. To do anything expertly, He doesn't even need to contemplate. Since Lord Śiva was being harassed by the woman, it is to be understood that this was being done not by a woman but by Lord Viṣṇu Himself.
TEXT 32
तस्यानुधावतो रेतश्चस्कन्दामोघरेतसः । शुष्मिणो यूथपस्येव वासितामनुधावतः ॥३२॥
tasyānudhāvato retaś caskandāmogha-retasaḥ śuṣmiṇo yūthapasyeva vāsitām anudhāvataḥ
tasya —of him (Lord Śiva);  anudhāvataḥ —who was following;  retaḥ —the semen;  caskanda —discharged;  amogha-retasaḥ —of that person whose discharge of semen never goes in vain;  śuṣmiṇaḥ —mad;  yūthapasya —of a male elephant;  iva —just like;  vāsitām —to a female elephant able to conceive pregnancy;  anudhāvataḥ —following.
TRANSLATION
Just as a maddened bull elephant follows a female elephant who is able to conceive pregnancy, Lord Śiva followed the beautiful woman and discharged semen, even though his discharge of semen never goes in vain.