Is it proper for a man to marry a second wife only for the sake of his lust?

Answer

Allah Ta'ala permits a man to marry four women. As far as 'lust' is concerned, everyone marries to satisfy his/her lust. The primary motive for marrying even one wife is to gratify lust. Initially people marry only to satisfy lust even if only one wife is taken. Allah Ta'ala has created lust in people, hence He is aware that men require more than one wife to satisfy their lust lawfully. Never voice yourself against any Law of Allah Ta'ala. Recite Istighfaar and make Taubah.