Do you have any Biblical support for that idea?
Yeah, it's classed right along with incest and beastiality.
Leviticus 20:13 If a man also lie with mankind, as he lieth with a woman, both of them have committed an abomination: they shall surely be put to death; their blood shall be upon them.
[SIZE=+0]14[/SIZE] And if a man take a wife and her mother, it is wickedness: they shall be burnt with fire, both he and they; that there be no wickedness among you.
[SIZE=+0]15[/SIZE] And if a man lie with a beast, he shall surely be put to death: and ye shall slay the beast.
[SIZE=+0]16[/SIZE] And if a woman approach unto any beast, and lie down thereto, thou shalt kill the woman, and the beast: they shall surely be put to death; their blood shall be upon them.
[SIZE=+0]17[/SIZE] And if a man shall take his sister, his father’s daughter, or his mother’s daughter, and see her nakedness, and she see his nakedness; it is a wicked thing; and they shall be cut off in the sight of their people: he hath uncovered his sister’s nakedness; he shall bear his iniquity.
Paul also speaks to this:
Romans 1:18 For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth. [SIZE=+0]19[/SIZE] For what can be known about God is plain to them, because God has shown it to them. [SIZE=+0]20[/SIZE] For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse. [SIZE=+0]21[/SIZE] For although they knew God, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened. [SIZE=+0]22[/SIZE]Claiming to be wise, they became fools, [SIZE=+0]23[/SIZE] and exchanged the glory of the immortal God for images resembling mortal man and birds and animals and creeping things.
[SIZE=+0]24[/SIZE] Therefore God gave them up in the lusts of their hearts to impurity, to the dishonoring of their bodies among themselves, [SIZE=+0]25[/SIZE] because they exchanged the truth about God for a lie and worshiped and served the creature rather than the Creator,who is blessed forever! Amen.
[SIZE=+0]26[/SIZE] For this reason God gave them up to dishonorable passions. For their women exchanged natural relations for those that are contrary to nature; [SIZE=+0]27[/SIZE]and the men likewise gave up natural relations with women and were consumed with passion for one another, men committing shameless acts with men and receiving in themselves the due penalty for their error.
[SIZE=+0]28[/SIZE] And since they did not see fit to acknowledge God, God gave them up to a debased mind to do what ought not to be done. [SIZE=+0]29[/SIZE] They were filled with all manner of unrighteousness, evil, covetousness, malice. They are full of envy, murder, strife, deceit, maliciousness. They are gossips, [SIZE=+0]30[/SIZE] slanderers, haters of God, insolent, haughty, boastful, inventors of evil, disobedient to parents, [SIZE=+0]31[/SIZE] foolish, faithless, heartless, ruthless. [SIZE=+0]32[/SIZE] Though they know God’s righteous decree that those who practice such things deserve to die, they not only do them but give approval to those who practice them. ESV
What Paul is speaking to are the sexual practices associated with the pagan forms of worship for they were all sexual in nature. These forms of pagan worship were the source of all the sexual perversions we see today. The priests and priestesses of Baal and Ashtorah were all prostitutes as were the priestesses of pagan worship such as the worship of Diana of the Ephesians during NT times. Paul said that worship was the worship of devils. That statement by Paul tells us exactly who is the ultimate source of all these behaviors.
1Corinthians 10:20 But I say, that the things which the Gentiles sacrifice, they sacrifice to devils, and not to God: and I would not that ye should have fellowship with devils.
[SIZE=+0]21[/SIZE] Ye cannot drink the cup of the Lord, and the cup of devils: ye cannot be partakers of the Lord’s table, and of the table of devils.: