अतिबालो ह्यसम्पूर्णसर्वधातुः स्त्रियं व्रजन्| उपशुष्येत सहसा तडागमिव काजलम् ||४१||
If a young boy of very tender age whose body elements are not yet fully formed, enters in to sex act with a woman, his body gets dried up like a pond having very little water.
तृप्तस्यापि स्त्रियो गन्तुं न शक्तिरुपजायते| देहसत्त्वबलापेक्षी हर्षः शक्तिश्च हर्षजा ||४५||
By consumption, fear, suspicion and grief, by seeing the deformities in woman, by non excitation of the woman, absence of passionate determination, by abstention from sex and just after full sexual enjoyment, a man is rendered incapable of mating with a woman. This depends on strength of the body and mind.