(Al-Hijr) 15 : 71
قَالَ هَٰؤُلَاءِ بَنَاتِي إِنْ كُنْتُمْ فَاعِلِينَ
He said: "These are my daughters if you might do so!”.
Lord created male and female as pair from emitted sperm as told in verses 53: 45-46. So, sexual intercourse between the opposite genders is only permitted. Fornication is one among 7 heinous sins as explained in verse 4: 31. There is repentance for fornication whereas for sodomy there is no repentance. Lord taught through Messenger: “For sodomy, both doer and the one on whom it is done should be killed”.
Today, this antinatural sexual activity is found more in Arabic Quran reading Fujjar among mankind than any other people. That is why they are denoted as the worst among 1000 communities of creatures as explained in verse 8: 22. See explanation 11: 78.