1 Corinthians 7:2-4

2 But wrong sex is always a danger to us. So it is better for each man to have his own wife and each woman to have her own husband.

3 The husband should give his wife what is right. So also, the wife should give her husband what is right.

4 The wife does not have full right over her own body. But her husband has a right to it. In the same way, the husband does not have full right over his own body. But his wife has a right to it.