The relationship between biology and sexual orientation is a subject of research.No simple and singular determinant for sexual orientation has been conclusively demonstrated; various studies point to different, even conflicting positions, but scientists hypothesize that a combination of genetic, hormonal, and social factors determine sexual orientation.
Do not deprive each other except by mutual consent and for a time, so that you may devote yourselves to prayer.
The husband should fulfill his marital duty to his wife, and likewise the wife to her husband.
The wife's body does not belong to her alone but also to her husband.
It continues to influence the development of the modern concept of sexual orientation, and can be used to describe individuals' sexual orientation, sexual history, or self-identification.
Some reject the term heterosexual, as they feel that the word only refers to one's sexual behavior and does not refer to non-sexual romantic feelings.