According to an article in Men's Fitness, there are a wide variety of open-relationship arrangements, and details can vary substantially from one couple to another.Since there is no fixed definition, unlike, say, monogamy, which had established its rules over centuries, it is up to couples who engage in open relationships to set rules.In an open relationship, both partners are free to engage in sexual relationships with other people while still remaining in a relationship with each other.Beyond this, there isn't really a single definition for what an open relationship is, as partners who consent to this arrangement determine the parameters that apply within their relationship.What is the difference between "Seeing someone" and "Dating someone"? Logically speaking, a relationship should progress from being open and inclusive of all possibilities to one of exclusive nature with one person. I think if you are searching for exclusivity, then you should ask for it (or rather, ask for where you stand in the relationship in regards to this matter).In Opening Up, a book on open relationships, author Tristan Taormino indicates that setting boundaries makes it easier for couples to determine what is acceptable within their relationships. A physical boundary refers to touching someone, a sexual boundary refers to having sex, and an emotional boundary refers to the level of emotional involvement.
But then again, this is not the norm everywhere, nor is it the only possibility.
An open relationship is an agreement between two people who want to be together but decide that they want to date and/or have physical relationships with other people too.
Some people view an open relationship as a negative thing, while others see this type of relationship as a positive factor that can lead to more freedom or self-expression while in a relationship.
Indeed I know of many people who go from such an exclusive 1-1 state to an open polygamous relationship.
Such sexual practice, whilst being frowned on upon in some societies is common in others. In any case, relationship exclusivity is all about communication.