"Sons of God" is the term used in Hebrew in the Old testament to denote angels. What were the angels doing on earth having sex with dauthers of men? (even if such a thing were possible...that is...angels are bodiless)
Gen.19:1 And there came two angels to Sodom at even; and Lot sat in the gate of Sodom: and Lot seeing them rose up to meet them; and he bowed himself with his face toward the ground;
2.And he said, "Behold now, my lords, turn in, I pray you, into your servant's house, and tarry all night, and wash your feet, and ye shall rise up early, and go on your ways."......
3.And he pressed upon them greatly; and they turned in unto him, and entered into his house; and he made them a feast, and did bake unleavened bread, and they did eat.
They aren't bodiless Kosta.
......Ping