Therefore, the concept of marriage need not necessarily hinge on sexual or emotional monogamy.

Couples sometimes drop out of the open marriage lifestyle and return to sexual monogamy.

The incidence of sexual monogamy appears quite rare in other parts of the animal kingdom.

Yet, the incidence of sexual monogamy varies across cultures.

This is associated, usually implicitly, with sexual monogamy.

Kerry gets angry at being rejected and reveals that she cannot endure sexual monogamy for the rest of her life.

Other couples drop out of the open marriage lifestyle and return to sexual monogamy.

In western and other cultures, couples usually expect sexual monogamy of each other.

In modern human relationships, the term can refer to sexual monogamy.

However, some people do not equate fidelity in personal relationships with sexual or emotional monogamy.