Polyfidelity
Polyfidelity is a close-grouped form of polyamory in which more than two people have romantic relationships with sexual contact restricted to specific partners in a group. This is much like the normal expectation in a monogamous marriage but with more than two people involved in the relationship. It has the health and emotional advantages of commitment and fidelity - often concentrating on issues of honesty and trust - while allowing more than one in the relationship. It does not have the sexual variety or freedom of more open arrangements or swinging.
Polyfidelity is a common form of polyamory in D/s relationships with more than one person. Typically, such relationships have only one dominant with multiple submissive partners.
See Polyamory for the main article on this area.
