St Tikhon of Zadonsk writes in "Journey to Heaven"
The ungodly who did not believe the preaching of righteous Noah on repentance were drowned by flooding.What, then, should the present-day ungodly and revilers and scorners of the Law of God expect? They too shall be submerged in the most terrible flood of eternal perdition.Fire from Heaven consumed the Sodomites for their abominable impurity. What then should the present-day fornicators and adulterers and other defilers expect, but the fire of Gehenna in which they shall burn forever, yet not be consumed?
This very stark teaching addresses all who would practice all unlawful sexual sins; first addressing those who would practice homosexual acts, but then goes on in equally uncomprising terms to address those who would commit fornication (sex before marriage) and adultery (sex outside marriage).
Temptations are not sins, entertaining them or surrendering to them are. As to the whole concept of people calling themselves homosexuals or heterosexuals, is this a Christian concept or something that belongs to the foolishness of this world?