>"Prajapati desired offspring. He became a buck and his daughter a doe; he united with her and from them sprang all creatures." (Shatapatha Brahmana 1.7.4; 11.1.6)
>Brahma had incestious bestial sex with his daughter Saraswati who turned into a cow (Bhagavata Purana 3.12.28-33; Shatapatha Brahmana 1.7.4.1-6)
>When Lord Vishnu raised the earth in a form of a boar he "played with the Earth as a husband with his bride" (Vishnu Purana 1.4-5; Bhagavata Purana 3.13, 8.24; Mahabharata 12.326)
>"When the Father laid the Daughter down, they joined; the gods beheld the act" (Rig Veda 10.61.5-8)
>Rohita has sex with a cow to avoid having sex with his own mother (Aitareya Brahmana 7.13)