Formerly this sinful wretch was cursed for having committed rape on his (own) daughterin-law, Rambha. (Therefore) this lustful being is not capable of forcibly violating any woman.
शप्तो ह्येष पुरा पापो वधू रम्भां परामृशन्। न शक्नोत्यवशां नारीमुपैतुमजितेन्द्रियः॥