1 Corinthians 7:3-4

If a wife needs her husband to sleep with her and do what married people do together, he has to agree to it, to make her happy. And if a husband needs his wife to sleep with him and do what married people do together, she has to agree to it, to make him happy. You see, the wife’s body does not only belong to her, it also belongs to her husband. In the same way, the husband’s body doesn’t only belong to him, it also belongs to his wife.