Kamasutra 5.2.28

5.2.28

śaṅkitāṃ rakṣitāṃ bhītāṃ saśvaśrūkāṃ ca yoṣitam//
na tarkayeta medhāvī jānan pratyayam ātmanaḥ//

When a man is endeavoring to seduce one woman, he should not attempt to seduce any other at the same time. But after he has succeeded with the first, and enjoyed her for a considerable time, he can keep her affections by giving her presents that she likes, and then commence making up to another woman. When a man sees the husband of a woman going to some place near his house, he should not enjoy the woman then, even though she may be easily gained over at that time. A wise man having a regard for his reputation should not think of seducing a woman who is apprehensive, timid, not to be trusted, well guarded, or possessed of a father-in-law or mother-in-law.