It is very plain in the Bible when God says homosexuality is a sin. He plainly says that adultery is a sin, fornication is a sin...etc., etc., etc. You were made in God's image. God did not create us so we can make Him in our image. If you are a "Christian" you should know living contrary to the Word of God is sinful. If you don't know living contrary to God's Word is a sin, then are you "truly" born again?
http://jobs.aol.com/articles/2012/05/15/christian-universitys-anti-gay-pledge-causes-faculty-to-quit-en
The acts of the flesh are obvious: sexual immorality, impurity and debauchery; idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who live like this will not inherit the kingdom of God.
Galatians 5:19-21
http://jobs.aol.com/articles/2012/05/15/christian-universitys-anti-gay-pledge-causes-faculty-to-quit-en
The acts of the flesh are obvious: sexual immorality, impurity and debauchery; idolatry and witchcraft; hatred, discord, jealousy, fits of rage, selfish ambition, dissensions, factions and envy; drunkenness, orgies, and the like. I warn you, as I did before, that those who live like this will not inherit the kingdom of God.
Galatians 5:19-21