Surat Al Hijr (67-68)

{وَجَاء أَهْلُ الْمَدِينَةِ يَسْتَبْشِرُونَ} (الحجر : 67)

67- The people of Lut came to the city in groups, glad and giving glad tidings to one another to practice fornication with the guests of Prophet Lut without shyness.

{قَالَ إِنَّ هَؤُلاء ضَيْفِي فَلاَ تَفْضَحُونِ} (الحجر : 68)

68- Lut (peace be upon him) said to them as if he is touching upon their good manners: They are my guests –before he knew they were angels-, so give up your determination and do not expose me before them because they shall be stunned by your request and will say that I could not protect them. Indeed, the right of a guest is to be protected and not humiliated.