Don\'t you know that you yourselves are God\'s temple and that God\'s Spirit lives in you? If anyone destroys God\'s temple, God will destroy him; for God\'s temple is sacred, and you are that temple....1 corinthians 3:16, 17
The only time sex is right is if you are married to your partner. That\'s the simple fact/truth which can never change whether we are perfect or not.