1 Corinthians 7:2-5

2Nevertheless, because of sexual immorality, let each man have his own wife, and let each woman have her own husband.

3Let the husband render to his wife the affection due her, and likewise also the wife to her husband.

4The wife does not have authority over her own body, but the husband does. And likewise the husband does not have authority over his own body, but the wife does.

5Do not deprive one another except with consent for a time, that you may give yourselves to fasting and prayer; and come together again so that Satan does not tempt you because of your lack of self-control.