15 Do you not know
that your bodies are members of Christ himself? Shall I then take
the members of Christ and unite them with a prostitute? Never! 16 Do you not know that
he who unites himself with a prostitute is one with her in body? For
it is said, “The two will become one flesh.”
From
BibleGateway.com: http://www.biblegateway.com/passage/?search=1
corinthians 6:15-16&version=NIV