And so the bible says...

I just need to QUOTE the following from the bible (courtesy of Huimin):

1 CORINTHIAN 6:18-19
Don't be immoral in matters of sex; that is a sin against your own body in a way that no other sin is.

Hebrews 13:4
Sex between a husband and his wife is the only form of sexual relations that God approves of.

Scriptures: Acts 15:20; Romans 1:29; 1 Corinthians 5:1; 6:13,18; 7:2; 10:8; 2 Corinthians 12:21; Galatians 5:19; Ephesians 5:3; Colossians 3:5; 1 Thessalonians 4:3; Jude 7
The Bible promotes abstinence before marriage. Sex before marriage is just as wrong as adultery and other forms of sexual immorality, because they all involve having sex with someone you are not married to.

Your body is a temple where the holy spirit lives. The spirit is in you, and is a gift from God.