Frederick Elliston’s In Defence of Promiscuity begins by challenging the typical definitions of promiscuity. In Elliston’s view, the dictionary definitions of promiscuity, which include being entirely indiscriminate in the selection of sexual partners, and having “many” sexual partners. Elliston’s perspective is that promiscuity can exist with discriminatory selection of partners, as a promiscuous person obviously will not have sex with any and every sexual partner available, and that the word “many” cannot apply as it is too vague and does not specify an actual number, and an un-promiscuous person can have sex with multiple partners in the case of remarrying after divorce or the death of a spouse. He then states his own interpretation the definition of promiscuity, which is that promiscuous people are only indiscriminate in the context of the dominant sexual norm of their society. He establishes the norm of our society as the “western norm,” however he also states that a simple violation of the western norm does not constitute promiscuity. Therefor, Elliston offers his own definition of promiscuity, “ sex with a series of other adults, not directly related through marriage, with no commitments.”
After defining promiscuity, Elliston offers up several common criticisms of promiscuity, and a defence to each. First, he brings up the increased danger of unwanted pregnancy that accompanies promiscuous behavior. Elliston’s defence is that modern contraceptive technology and the existence of abortion procedures reduces the risk of an unwanted child greatly, to within an level that makes promiscuous behavior acceptable. His next defence is against the Catholic concept of the Inseparability premise, the idea that sex has two and only entirely inseparable functions, reproduction, and to bring a married, heterosexual couple closer together. Elliston cites another philosopher in his defence, and states that the inseparability premise has no true basis in scripture or the bible. He also offers several reasons why the Catholic church should accept birth control and and sex for non reproductive purposes, including that prohibiting the use of birth control could lead to a rise in overpopulation, and that the Church allowing drugs for physical health means that they should also allow drugs to promote sexual health.
Elliston then addresses the concept of promiscuity as a threat to monogamy. Elliston counters by stating that promiscuity does not have an adverse affect on monogamy, and that this position makes the assumption that monogamy is superior to the alternatives. His belief is that the continuing existence and popularity of marriage proves that monogamy is alive and well, and that the value of monogamy has been overblown by the western norm, and that more promiscuous behavior can in fact increase the sexual compatibility of married couples. He then counters the somewhat related argument that promiscuity leads to lying and deception by stating that these behaviors are not inherent to promiscuous behavior, and the western norm is in fact responsible for the occurrence of this type of deception by placing a stigma on the promiscuous.
Elliston’s final defence against a specific attack is a counter to the idea that promiscuous behavior has a negative influence on one's personal growth. He cites philosopher Peter Bertocci, who believed that promiscuity threatens “personal emotional security,” it indicates a lack of respect for one’s other partner, and that promiscuous behavior indicates a lack of self discipline. Elliston responds by writing that promiscuity is in fact a conscious refusal to be governed by the western norm, indicating a high degree of self control, and that respecting the decisions and autonomy of one’s partner in being promiscuous is respecting that partner.
Elliston then moves on to defending promiscuity by stating its benefits through three philosophical modes of thought. First, he uses what he calls a “Classic Liberal Defence” and makes the claim that the ability to be promiscuous is an essential part of personal liberty, and that promiscuity enhances personal growth, the freedom and liberty to grow as a person is essential. Next, he defends “sex as body language,” and states that sexuality is a form of body language and expression, and that promiscuity has “instrumental value” in allowing one to become a master of their body language and expressions. Finally, he offers an “existential defence” of promiscuity and offers the viewpoint that “authentic sexuality” creates an openness to others, and an emotional, physical, and psychological nakedness which increases people's ability to realize and decide what commitments they desire.