Applied Ethics · Ethics · Paper 2

Sexual Ethics

Apply normative theories to pre-marital & extra-marital sex and homosexuality. Tension between traditional religious teaching and secular/liberal approaches.

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⏱ ~40 min full guide AO1 knowledge and AO2 evaluation

Key Terms

Glossary

Pre-marital sex
Sex before marriage.
Extra-marital sex
Adultery — sex outside one's marriage.
Homosexuality
Sexual attraction to the same sex.
Procreation
The producing of offspring — central to traditional views of sex's purpose.

Key Scholars

Learn AO1 knowledge

How each theory applies

Topic comparison table
TheoryApproach to sexual ethics
Natural LawSex's telos is procreation within marriage. Pre-/extra-marital sex and homosexual acts frustrate this purpose → wrong. (Aquinas)
Situation EthicsNo absolute rules — the most loving (agape) act in the relationship is right; permits acts within loving relationships.
Kantian EthicsSex must never treat a person merely as a means; rejects using others for pleasure. Concerned with consent, dignity, universalisability.
UtilitarianismJudge by consequences — pleasure/preference satisfaction vs harm; generally liberal if no harm.

Scholars & voices

Scholars & voices. Vardy on the ethics of love; Anscombe defending traditional/contraception views; Kant on sexual objectification; secular liberal emphasis on consent & autonomy. Note changing attitudes over time as evidence of relativism vs absolutism.

Separate description, theological premise and ethical conclusion

Sexual-ethics arguments often move too quickly between three levels. A descriptive claim concerns bodies, psychology, relationships or social effects. A theological claim interprets sex through creation, covenant, vocation or scripture. An ethical conclusion states what ought to be permitted, prohibited or cultivated. Evidence at one level does not automatically establish another.

For example, describing procreation as one biological capacity of sex does not by itself prove that every sexual act must remain procreative. A natural-law argument needs further claims about final causation, basic goods and the level at which an act's purpose is assessed. Conversely, describing changing attitudes does not prove that every norm is merely relative. Social variation is evidence about belief, not a self-contained argument about truth.

High-attainment evaluation reconstructs the missing premise before criticising it. It also distinguishes an internal theological assessment—whether a view coheres with its own scripture and tradition—from a public ethical assessment—whether its reasons can guide people who reject that authority. A conclusion can be coherent inside a tradition yet require a different justification for civil law or a plural classroom.

Consent is a moral threshold, not the whole of sexual ethics

Valid consent must be informed, voluntary, specific, ongoing and given by someone with the relevant capacity. It can be withdrawn, and agreement to one act is not agreement to another. Deception about a fact central to another person's decision can compromise autonomy even where no physical force is used. These requirements make consent far more demanding than the absence of a spoken refusal.

Consent is nevertheless a threshold rather than a complete theory of flourishing. Two adults may consent while acting carelessly towards commitments, future vulnerability or third parties. Ethical assessment can ask about fidelity, honesty, exploitation, power and emotional responsibility without treating consensual adults as incapable of choosing. The challenge is to add moral depth without using “harm” or “dignity” as a pretext for control.

Background power matters. Economic dependence, professional authority, age difference or fear of exclusion can constrain choice without eliminating agency in every case. A good analysis asks what options were realistically available, whether the stronger party exploited a dependency and whether the person could revise the decision without retaliation. This avoids both extremes: assuming a formal yes settles everything, or assuming unequal power makes all consent impossible.

Natural law: procreative and unitive goods need an act-level argument

A Thomistic account treats bodily life, family, rational relationship and social order as intelligible goods. Later Catholic sexual ethics often describes marital sex as both unitive and procreative. The claim is not that conception must occur each time: infertile spouses can still perform the kind of act ordered towards union and generation. The disputed step is that agents must not intentionally separate those meanings in each act.

Three levels of teleology can be proposed. A biological act has a reproductive structure; a relationship may be assessed through fidelity and mutual good; a life or marriage may be open to family across time even when a particular act is not. Traditional teaching privileges the first while integrating the others. Critics argue that the wider relationship better captures intention and responsibility. Defenders reply that good intention cannot change the moral kind of a deliberately non-procreative act.

Natural-law reasoning must also distinguish function from statistical occurrence. The fact that many acts do not result in conception does not eliminate a procreative orientation; equally, calling a function “natural” does not yet show that frustrating it is morally wrong. The evaluative burden lies in explaining why the bodily form is a basic good that practical reason may never directly reject, and how that claim relates to consent, equality and responsible parenthood.

Kantian dignity tests deception, possession and mutual agency

Kant worries that sexual appetite can focus on another's body in a way that makes the person replaceable. The humanity formula supplies a more general test than a list of permitted relationships: does the interaction preserve each person's ability to know, choose and pursue ends, or does one party become merely an instrument of the other's gratification?

Mutual consent matters because it allows reciprocal cooperation, but it does not erase every form of objectification. A person can agree under deception, internalised pressure or terms that deny future voice. Conversely, desire does not necessarily reduce a partner to an object when it is integrated with attention to their subjectivity and projects. The word merely is essential: human beings regularly rely on one another, but may not bypass rational agency.

Kant's own historical account of sex and marriage is contested and should not be treated as a complete contemporary answer. The strongest use of his ethics develops non-coercion, truthfulness, reciprocity and enduring responsibility. A critic can ask whether rational agency alone captures embodiment and care; a defender can respond that dignity provides a firm constraint against trading one person's status for pleasure or social approval.

Utilitarian sexual ethics must include trust, risk and distribution

A utilitarian considers pleasure, distress, health, relationship stability, social stigma and effects on everyone involved. Short-term mutual enjoyment is relevant but not conclusive. Uncertain future harms, contraception, communication, emotional expectation and impact on existing commitments all belong in the assessment. Rules around consent and fidelity can be defended through the security and trust they create.

Preference utilitarianism asks whose informed interests are satisfied. Actual preferences may have been shaped by shame, prejudice or manipulation; idealising them requires judgement about information and autonomy. Welfare also has a distribution. A large benefit to the more powerful party cannot automatically outweigh serious harm to one person merely because the arithmetic total is positive.

Rule and act versions can diverge. An act utilitarian may permit an exception to a fidelity rule where secrecy appears to avoid harm. A rule utilitarian includes the wider cost of a practice in which promises are privately suspended. The familiar epistemic problem is acute: people motivated by desire are unreliable forecasters of consequences. Public rules, disclosure and cooling-off practices can be utility-enhancing protections against biased calculation.

A method for sexual ethics: identify the moral object before applying a theory

Sexual ethics is distorted when an essay begins with a verdict about a category of people. Ethical analysis concerns acts, intentions, relationships, institutions, virtues and distributions of power. These levels interact but should not be collapsed. An orientation is not identical with an act; an act is not fully described by physical movement; consent does not settle every promise; and a theological account of marriage is not merely a prediction about consequences. Accurate description protects people from becoming examples in an abstract dispute.

The first stage is therefore conceptual. Ask who has capacity and freedom, what each person understands, what commitment has been made, whether relevant information is concealed, and what goods or harms the relationship makes possible. Then identify the theory's controlling premise. Natural law asks about goods, purposes and the chosen kind of act. Kantian ethics asks about maxims, dignity and rational agency. Utilitarianism considers wellbeing, preference, indirect effects and distribution. Christian ethics may add covenant, creation, holiness and faithful love.

A strong answer also distinguishes moral, pastoral and legal questions. A tradition can hold that an act is morally wrong while requiring compassion and protection from humiliation. A law can permit conduct without claiming it is admirable, or prohibit conduct for public reasons narrower than a complete moral theology. The examination task is reasoned evaluation, not surveillance of private lives. Use respectful language, avoid speculative personal examples and judge principles consistently across relationships.

Consent has conditions: capacity, information, freedom, specificity and continuation

Consent is a person's voluntary agreement to a particular interaction. It requires sufficient capacity, relevant understanding and freedom from coercion. It is specific rather than a general transfer of authority, and it can be withdrawn. A prior relationship, marriage, gift or earlier agreement does not create permanent consent. This makes consent a demanding expression of agency rather than a box checked once. It also explains why silence, freezing or lack of resistance should not be treated as positive agreement.

Power complicates voluntariness. A large age, status, financial or professional imbalance can make refusal costly even without an explicit threat. The existence of some pressure does not automatically erase agency, but it changes the evidence needed to show a free choice. Relevant deception can also vitiate consent where it changes the nature, risk or relational meaning of what is agreed. Every disappointment is not deception; the moral issue is intentional control of material information for the purpose of securing agreement.

Consent remains a threshold rather than a complete theory of a good relationship. Two adults can consent to conduct that is callous, disloyal, manipulative or damaging to third-party commitments. Conversely, moral paternalism can invoke a richer good to ignore a competent person's agency. The defensible structure is layered: without valid consent the act fails a central requirement; with consent, further questions about honesty, fidelity, care, justice and flourishing remain open.

Promises and vulnerability: why fidelity matters beyond ownership

Fidelity is often defended through the wrong image, as if one partner owned the other's body or attention. A more defensible account begins with promise and vulnerability. Intimate commitment allows people to organise identity, housing, care, family responsibilities and future plans around another person's word. Deliberate betrayal can therefore harm agency by secretly altering the terms on which the other person is living. The wrong is not possession but deception within a relationship of justified reliance.

Kantian ethics analyses the betrayer's maxim. A private permission to accept the security of a promise while secretly reserving an exception cannot be publicly shared as the basis of the same trust. It also uses the partner's uninformed cooperation as a means. Utilitarianism captures anxiety, family disruption and erosion of trust but should include the counterfactual: what arrangements could the parties have negotiated honestly? A relationship model is not justified merely because concealing it avoids immediate distress.

Fidelity need not mean that every relationship has identical terms. Ethical commitments can differ, but the terms must be understood, free from manipulation and realistically revisable. Consent to one arrangement cannot be inferred from a stereotype or from silence. A mature judgement defends truthfulness and reliable commitment while recognising that separation can sometimes be more honest than preserving appearances. The central value is not permanence at any cost; it is refusing to build one's intimacy on another person's avoidable ignorance.

Objectification: not every experience of desire treats a person as a thing

Sexual desire focuses on embodied features, and that fact can generate a fear that desire necessarily objectifies. Kant's strongest concern is that appetite may reduce the other person to an instrument for satisfaction. Yet attending to a person's body is not automatically denying personhood. Human beings are embodied agents, and affectionate desire can be integrated with knowledge, responsiveness and concern for the other's ends. The moral issue is the mode of attention and the structure of the interaction.

Martha Nussbaum separates forms of objectification such as instrumentality, denial of autonomy, fungibility, ownership and denial of subjectivity. This analysis shows why context matters. Enjoying another person's physical presence may coexist with respect; treating that person's refusal as irrelevant cannot. A person may willingly adopt a playful role without becoming generally available or exchangeable. Consent and mutuality change some features, though severe inequality or internalised pressure can still require scrutiny.

Kant's warning remains important because mutual appetite alone may create reciprocal use rather than respect. The relationship should preserve each person's ability to speak, set limits, pursue wider projects and be recognised outside the desired function. Utilitarian satisfaction cannot erase humiliation or coercion, while a blanket condemnation of desire can produce shame detached from harm. A balanced conclusion treats desire as morally educable: it can attend to an embodied subject rather than consume an object.

Natural law: procreation, union and the difference between a capacity and a duty

A classical natural-law approach locates sexual activity within goods associated with marriage, procreation, family and faithful union. The claim is not simply that reproduction sometimes follows sex and therefore every person must reproduce. It is that the generative capacity has an intelligible orientation which practical reason should not intentionally contradict, while stable union supports the care of children and the good of spouses. The moral argument depends on this account of the act and the integrated goods, not on statistical normality.

Several distinctions are necessary. A person can honour a good without realising it in every life; celibacy does not attack procreation. A couple unable to conceive need not act against the generative good, because infertility is a condition rather than a chosen object. Natural-law writers also distinguish intending to make an act non-generative from accepting a limitation not selected as the means. Critics argue that these descriptions grant decisive moral significance to biological structure while overlooking intimacy, equality and responsible family planning.

The central question is what counts as integration. Defenders hold that unitive meaning and procreative openness should not be intentionally separated because together they protect sex from becoming private consumption. Critics answer that a faithful non-procreative relationship can realise mutual care and embodied commitment without instrumentalising either partner. A high-level evaluation should test the premise about act-types directly. Citing natural purpose is not enough; explain why respecting that purpose creates a reason binding on rational agents and how it relates to other goods.

Anscombe on contraception: intention, chastity and the shape of practical reasoning

G. E. M. Anscombe treats contraception as part of a larger argument about chastity and the meaning of sexual acts, not merely as a dispute about consequences. Her reasoning is connected with a Catholic natural-law framework in which deliberately rendering intercourse non-generative changes the chosen act. She also warns that separating sex from procreative responsibility can change expectations across a culture, making restraint appear unintelligible and treating desire as sufficient justification.

The argument gains strength when it identifies how technologies can reshape practices and norms rather than simply solving isolated problems. Consequences include expectations, bargaining power and the responsibilities people assume. However, the causal claims require evidence, and cultural change can also reduce fear, support responsible parenthood and allow couples to protect health. A critic can accept that intention matters while rejecting Anscombe's classification of every contraceptive intention as contrary to an intrinsic good.

A fair assessment distinguishes internal and external critique. Internally, ask whether exceptions and methods are described consistently within the natural-law account. Externally, ask why procreative structure has decisive authority and whether marital unity can supply an independent moral meaning. Anscombe should not be reduced to opposition to technology. Her deeper challenge is whether control over fertility transforms a good practice into consumption; the reply is that responsible control may express care rather than rejection.

Kant on sexuality: reciprocal possession does not fully solve the dignity problem

Kant worries that sexual appetite directs attention towards another person's body as an object of use. In his historical account, marriage creates a reciprocal and legally recognised union that prevents unilateral appropriation. The proposed solution reflects his concern for exclusivity, obligation and equality of claim. Yet its language of possession is difficult: if persons have dignity beyond price, mutual ownership seems an unstable way to protect them from objectification.

A contemporary Kantian reconstruction can leave ownership behind and emphasise reciprocal agency. Partners should be able to understand and endorse the relationship's maxim, refuse without penalty, retain projects beyond the relationship and never be deceived into serving an unshared plan. Marriage may support these conditions through public commitment, but a legal status does not guarantee respect, and an unmarried relationship does not automatically lack it. The ethical work is performed by free commitment and treatment as ends, not the label alone.

Kant also raises a challenge to purely consensual accounts. Two people might agree to arrangements that cultivate self-objectification, conceal severe inequality or make future autonomy fragile. Respect can require more than current preference. The danger is paternalism: outsiders may override competent choices by claiming to know dignity better than the participants. A defensible Kantian test therefore focuses on conditions of agency and publicly shareable reasons while remaining cautious about turning one historical family form into the only possible expression of respect.

Utilitarianism must count attachment, trust and unequal exposure to harm

A utilitarian analysis includes pleasure and pain but should not reduce sexual ethics to the intensity of a private experience. Relationships generate expectations, attachment, identity, care work and effects on wider households. Harms can be probabilistic and delayed. Information and power are unevenly distributed, so an aggregate gain may be purchased through concentrated risk borne by the person with least control. Extent therefore concerns every affected interest, not the number of people expressing approval at one moment.

Mill's distinction between higher and lower pleasures does not license contempt for embodied pleasure. It asks what forms of life develop human capacities and what competent, informed judges would prefer after experience. Preference utilitarianism should distinguish an immediate choice from informed and stable interests. A preference produced through manipulation or fear has a different evidential status from one maintained under reflection and viable alternatives. Singer's impartiality further rejects assigning less weight to a person's suffering because of gender, sexuality or social disapproval.

Rule utilitarianism can justify stable norms of consent, privacy, honesty and safeguarding because case-by-case exceptions create fear and self-serving error. Act utilitarians reply that a rule should not be worshipped when an unusual exception clearly improves welfare. In intimate settings, certainty about secret beneficial exceptions is often unreliable because the chooser has strong personal incentives. The best utilitarian account uses protective rules, evidence about long-term effects and a distribution-sensitive calculation rather than permissive arithmetic.

Marriage as covenant, contract and public institution

A contract model emphasises voluntary agreement, stated obligations and fair exit. It protects individuals by making consent and enforceable duties visible. A covenant model stresses a relationship whose meaning is not exhausted by present exchange: partners commit themselves through changing circumstances and locate fidelity within a shared story. Christian traditions often connect this endurance with divine faithfulness and the one-flesh image. The models need not be exclusive, but they highlight different reasons for permanence.

Marriage is also a public institution. It can organise kinship, care, property and responsibility for dependants, while conferring social recognition. Public status can support vulnerable partners, yet historic marriage law and custom have also entrenched gendered power. Saying that marriage is traditional does not show that every traditional rule is just. An institution should be assessed by the goods it serves and whether its terms recognise equal agency.

The ethical question about exclusivity and permanence cannot be settled by romance alone. Durable commitment can protect trust and coordinate costly care; enforced continuation can trap people in harm. A defensible account treats promises as serious while allowing that grave breach can change what fidelity requires. Theological arguments may add sacramental or covenantal meaning, but in an essay they must explain how that meaning produces duties and how it responds to relationships in which the institution's professed goods are absent.

Premarital relationships: compare status-based and goods-based arguments

A status-based Christian argument holds that sex belongs within marriage because marriage publicly unites commitment, exclusivity and responsibility for possible children. The boundary supplies clarity and protects an act of deep vulnerability from being detached from a whole-life promise. On this view, good intentions or affection do not create the covenantal status that gives the act its proper meaning. Natural law may add that marital union integrates procreative and unitive goods.

A goods-based critic asks whether the relevant values can be present before a legal or religious ceremony and absent after it. Honesty, mutual care, stable intention and responsibility vary within both married and unmarried relationships. If the moral work is performed by those goods, status may be evidence or support rather than a necessary condition. The critic can also argue that an exclusive focus on the boundary overlooks coercion and neglect within marriage.

The traditional reply is that private intention is fragile and that public promise changes what the partners are entitled to expect. The revisionist reply is that institutions earn authority by embodying the goods, not by naming them. Evaluation should therefore compare what marriage adds: publicity, community accountability, durable legal duties or sacramental meaning. A reasoned conclusion states whether those additions are morally necessary, normally prudent or one valuable form among others, rather than assuming that affection and marriage are interchangeable.

Same-sex relationships: make the disputed premise explicit

Debates about same-sex relationships often generate heat because several arguments are compressed into the word natural. One argument appeals to the procreative structure of male–female union; another appeals to biblical authority; another to gender complementarity; a fourth to historic practice. These are distinct premises and require distinct defence. Describing an orientation as statistically less common does not establish moral wrongness, and an argument about acts should not be converted into a judgement about a person's worth.

A traditional natural-law account can maintain that sexual acts have a generative form even where conception does not occur, while same-sex acts cannot instantiate that form. Critics argue that this gives procreative type excessive weight and that faithful relationships realise unitive goods, mutual support and social stability. The infertility comparison sharpens the issue: defenders distinguish an act of the generative kind from one of another kind; critics question why that classification should override relational goods.

Christian revisionist approaches interpret scripture through historical context, the command of love and the fruits of committed relationships; traditional approaches emphasise continuity of textual and theological teaching. Neither side should caricature the other as choosing hatred or ignoring scripture. The evaluative question is hermeneutical as well as ethical: which texts and purposes control interpretation, and what account best integrates holiness, covenant, justice and embodied creation? A high-quality judgement states the controlling premise and applies standards of fidelity, consent and dignity consistently.

Primary-text extracts

Short, attributed extracts for close analysis. Use the source and context, not a quotation in isolation.

the inseparable connection, established by God, which man on his own initiative may not break
Paul VI, Humanae Vitae · §12 Read in context

Use it: Identify the unitive and procreative meanings named in the rest of §12, then evaluate rather than assume the move from connection to an exceptionless act-level norm.

The objectifier treats the object as a tool of his or her purposes.
Martha C. Nussbaum, Objectification · Philosophy & Public Affairs 24.4 (1995), p. 257 Read in context

Use it: This defines instrumentality, only one of seven features. Test a case for denial of autonomy, inertness, fungibility, violability, ownership and denial of subjectivity as well.

Christianity ... thoroughly approves of the body
C. S. Lewis, Mere Christianity · Book III, chapter 5, ‘Sexual Morality’

Use it: Use the line to correct the claim that Christian chastity depends on treating embodiment or sex itself as evil; then evaluate Lewis's account of disordered appetite.

not in accordance with right reason
Thomas Aquinas, Summa Theologiae · II–II, q.154, a.1 Read in context

Use it: Locate Aquinas's sexual ethics within virtue, reason and the ordering of generative acts rather than treating it as biological description alone.

an object of appetite
Immanuel Kant, Lectures on Ethics · Duties towards the Body

Use it: Test whether reciprocal desire can be integrated with recognition of an embodied rational subject.

the individual is sovereign
John Stuart Mill, On Liberty · Chapter I Read in context

Use it: Defend adult agency while examining Mill's harm principle, third-party duties and the conditions for a genuinely voluntary choice.

contraceptive intercourse
G. E. M. Anscombe, Contraception and Chastity · The Human World 9 (1972)

Use it: Analyse why Anscombe treats intention and the kind of act as morally prior to a calculation of desirable outcomes.

do no unjust harm
Margaret A. Farley, Just Love · Chapter 6

Use it: Test consent and mutuality within a wider justice framework that includes equality, commitment, fruitfulness and social context.

the body's grace
Rowan Williams, The Body's Grace · Opening argument

Use it: Explore embodied desire as the risky discovery of another person's grace rather than possession or private appetite.

one flesh
The Bible, Genesis · 2:24

Use it: Ask whether the image grounds kinship, covenant, bodily union or one exclusive institutional definition, and show the interpretive steps.

your body is a temple
The Bible, 1 Corinthians · 6:19

Use it: Use embodied holiness as a premise requiring interpretation, not as a self-applying rule for every disputed practice.

Evaluate AO2 arguments

Liberal / relativist arguments

  • Consent & autonomy: private acts harming no one are permissible.
  • Situation ethics & utilitarianism allow acts within loving, harmless relationships.
  • Attitudes change over time — supports relativism.

Traditional / absolutist arguments

  • Natural Law: sex has a fixed procreative purpose within marriage.
  • Religious teaching & scripture provide clear, stable norms.
  • Kant warns against reducing persons to objects of desire.
  • Consequences (e.g. to family, society) may justify restraint.

Teleology needs an argument about the whole act, not a biological shortcut

A natural-law account can claim that sexual activity has unitive and procreative intelligibilities without claiming that conception must occur on every occasion. The harder thesis in Humanae Vitae is that each marital act must retain both meanings and that agents may not intentionally separate them. Infertility is therefore distinguished from an intention to render the act infertile.

The debate turns on the level at which purpose is assessed. Is moral meaning fixed by the biological structure of each act, by the intentions and relationship of the agents, or by a marriage considered across time? Aquinas and later natural-law thinkers must explain why the act-level description is normatively privileged; a critic must explain why unitive intention or consent is sufficient when procreative consequences and social goods remain relevant.

Consent is necessary; objectification analysis asks what else matters

Consent marks another person's authority over access to their body, but a high-level sexual ethic also asks about coercive background conditions, deception, commodification and whether a person is treated as replaceable or voiceless. Nussbaum's analysis is useful because instrumentality is only one of several modes of objectification, and context can make some forms benign while others deny agency.

Kant supplies the demand never to treat rational nature merely as a means; feminist analysis asks whether formal consent reliably prevents that wrong under unequal power. The demanding judgement is neither ‘consent settles everything’ nor ‘desire always objectifies’, but an account of when desire can recognise another's subjectivity, ends and capacity to revise consent.

Chastity and propriety are different kinds of norm

C. S. Lewis offers a useful conceptual distinction between chastity, a virtue governing sexual desire and conduct, and propriety or modesty, a social convention governing dress and speech. Customs vary between cultures and generations; a change in convention does not by itself prove a change in character.

As a virtue, chastity concerns integration rather than disgust towards the body. Lewis explicitly rejects the view that sex is bad in itself. His appetite analogies claim that desire can become disordered when it dominates attention or is commercially intensified. The analogy prompts a genuine question about self-command, but it cannot decide which expression is disordered without an account of human good and evidence about harm.

The distinction also disciplines cultural judgement. Older standards should not automatically label unfamiliar expression corrupt, while newer standards should not assume every inherited restraint is mere repression. Virtue ethics asks what habits support honesty, fidelity, respect and freedom over time. Critics may argue that chastity language historically carried unequal or shame-based expectations; defenders must show that the virtue applies symmetrically and affirms embodied persons.

Fidelity, marriage and premarital ethics require arguments about commitment

A traditional Christian case locates sex within marriage because bodily intimacy expresses an exclusive, public and enduring covenant. On this view, the moral issue is not simply whether two people feel affection but whether the act truthfully embodies the commitment it signifies. Premarital and extramarital sex differ because adultery violates an existing promise and affects a spouse who did not consent.

A critic can separate sex from a single institutional form, arguing that mutual commitment, consent and care can exist outside marriage, while marriage can contain coercion or betrayal. Civil and religious meanings of marriage also differ. The defender must explain why public covenant adds a moral good that private commitment cannot supply; the critic must explain how responsibilities are made clear and enforceable where expectations differ.

The most persuasive shared ground concerns truthfulness and responsibility. Secretly breaking a promise is not justified by changing social convention. Nor does a marriage certificate guarantee respect. Ethical analysis should identify the commitment, the parties relying on it and the reasons a practice supports or undermines trust rather than assuming a label settles conduct.

Same-sex relationships test whether norms rest on gender, procreation or relational goods

Discussion should use current respectful terminology and distinguish orientation, relationship and particular acts. A traditional natural-law objection focuses on the procreative form of sexual union rather than claiming that gay or lesbian people lack dignity. A relational account asks whether fidelity, consent, mutual care and shared life are the central goods and can be realised by same-sex couples.

Scriptural and ecclesial arguments require interpretation: which texts address enduring mutual relationships, how historical context matters, and how specific commands relate to wider themes of creation, covenant and inclusion. Merely quoting a verse does not answer those hermeneutical questions; merely citing social change does not resolve a tradition's theological claim.

Kantian and utilitarian approaches shift the focus. The former tests equal respect, non-deception and whether a rule could be justified universally; the latter compares welfare, stigma, stability and harm. If similar relationships are treated differently, the evaluator must identify a morally relevant difference. If procreative structure is proposed, its treatment of infertile heterosexual couples and the level of teleology must be explained consistently.

Christian scripture: text, context and the move from description to norm

Christian sexual ethics frequently begins with creation narratives, Jesus' teaching on marriage, Pauline discussions of the body and passages concerning prohibited acts. Quoting a verse does not complete an argument. Students should establish audience, literary context, translation and the relation of that passage to the wider canon. They should also ask whether a text records a social arrangement, regulates it within its context or presents a norm intended for all communities.

The one-flesh image can support bodily unity, kinship and covenant, but interpreters dispute whether it defines one exclusive permitted structure or gives a theological account of a particular vocation. Paul's image of the body as a temple opposes treating embodiment as morally irrelevant; it does not on its own specify every sexual rule. The command to love one's neighbour guides application, yet love needs content if it is not to become approval of whatever a reader already prefers.

Tradition, reason and experience therefore enter interpretation. Traditionalists warn that contemporary desire can domesticate difficult texts. Revisionists warn that inherited readings can sanctify patriarchal power or fail to distinguish ancient practices from modern covenanted relationships. The best essay does not claim that context makes a passage disappear. It explains how interpretive principles rank texts and why the proposed reading coheres with central Christian claims about creation, sin, grace, fidelity and the equal dignity of persons.

Chastity and propriety: Lewis identifies a useful distinction but not a complete argument

C. S. Lewis distinguishes chastity, a moral virtue governing sexual desire and conduct, from propriety, the changing social conventions about dress and speech. Two cultures can use different public codes without one being more chaste. This is an important correction to moral panic: unfamiliar expression or clothing does not reveal a person's sexual character. It also warns younger and older observers against interpreting every generational difference as corruption or prudishness.

Lewis describes chastity as integration and restraint within a Christian moral framework. His appetite analogies aim to show that a natural desire can become disordered without making the underlying capacity evil. The strength is conceptual: affirmation of the body does not entail approval of every impulse. The limitation is evidential. Comparisons between food and sex can ignore the relational, communicative and identity-forming dimensions of intimacy, and claims about cultural excess require more than an arresting analogy.

A contemporary virtue account can retain the distinction while widening the analysis. Chastity may name truthful, non-exploitative integration of desire with commitment and care, interpreted differently inside and outside Lewis's theology. Propriety remains contextual but is not morally empty: conventions can protect privacy or reinforce shame and unequal control. The moral task is to judge what a convention does, not to confuse conformity with virtue.

Sexual representation, pornography and the ethics of an industry

Ethical analysis of pornography should distinguish production, representation and consumption. Production raises consent, working conditions, coercion, privacy and control over later distribution. Representation raises questions about objectification, violence, stereotypes and the scripts through which viewers understand intimacy. Consumption raises effects on expectations, relationships and attention. A single claim that an image was chosen voluntarily cannot settle every layer, especially when contracts, economic pressure and later copying affect control.

A Kantian asks whether performers and depicted persons remain ends with meaningful control, and whether consumers rehearse a gaze that denies subjectivity. A utilitarian requires credible evidence about pleasure, exploitation, habits and social effects rather than assuming either harmlessness or catastrophe. Feminist analyses disagree: some emphasise subordination and commodification, while others stress agency, expression and the danger of paternalistic censorship. The disagreement concerns structures of power as well as individual choice.

For school-age users, safeguarding is primary. Educational discussion should remain conceptual, non-graphic and clear that intimate material involving anyone under eighteen must never be created, requested or shared. A pupil worried about pressure or unwanted material should speak to a trusted adult or safeguarding lead. Philosophical nuance must not blur practical boundaries around consent, privacy and protection from exploitation.

Commercialisation: can intimate services be exchanged without commodifying the person?

One argument says that payment does not automatically remove agency. Many forms of embodied and emotional labour are sold, and denying an adult's capacity to choose can itself be paternalistic. Regulation and labour protections may reduce harm more effectively than stigma. A contractual analysis asks whether terms are informed, voluntary and enforceable and whether the worker retains boundaries and exit.

The opposing argument stresses that severe economic inequality can make formal choice misleading, that demand can sustain trafficking and coercion, and that buying sexual access may cultivate an attitude of entitlement towards persons. The intimate nature of the service can make detachment and ordinary workplace remedy difficult. Kantian concerns about treating humanity as a purchasable means are therefore not answered simply by naming a price.

Utilitarian evaluation needs evidence and a realistic comparison of policy options; it should not count visible transactions while ignoring displaced or hidden harm. A capabilities perspective asks whether the person has substantive alternatives, safety, voice and control. The defensible philosophical conclusion may remain conditional because social conditions affect voluntariness. What should not remain conditional is the rejection of coercion, trafficking, violence and stigma against exploited people.

Digital intimacy: privacy, permanence and responsibility for another person's future

Digital communication changes the scale and persistence of intimate disclosure. Consent to create or send material to one person is not consent to copy, publish or retain it indefinitely. Betrayal can produce harms far beyond the original interaction because distribution is rapid and difficult to reverse. A Kantian analysis identifies an obvious failure of shared maxim and informed agency; a utilitarian analysis includes continuing fear, reputational damage and loss of control.

Trust does not remove the need for caution. A person can care for another and still misjudge security, future conflict or pressure. Ethical responsibility includes minimising data, respecting deletion requests and refusing to forward material not intended for the recipient. Where age, coercion or uncertainty is involved, the safe response is not to request, create or share. Platforms and institutions also bear duties to make reporting and removal effective rather than placing every burden on the person harmed.

This case shows why sexual ethics cannot be reduced to private consent at one moment. Technology creates third-party systems, future audiences and durable asymmetries. Respect requires stewardship of information tied to another person's vulnerability. For students, practical safeguarding outranks a hypothetical debate: anyone facing pressure, threats or unwanted sharing should preserve safety, avoid redistributing the material and seek help from a trusted adult or designated safeguarding professional.

Virtue ethics: integration, practical wisdom and the danger of inherited stereotypes

Virtue ethics asks what patterns of desire and relationship help people become truthful, just, faithful, temperate and caring. It avoids treating every decision as an isolated permission. Practical wisdom attends to biography, vulnerability, promise and power, while temperance orders desire rather than declaring embodiment shameful. Justice prevents a language of personal purity from ignoring exploitation or unequal consequences.

The approach can integrate insights from other theories. Consent and Kantian respect set boundaries; consequences reveal how habits affect people; natural-law and theological accounts propose goods towards which desire might be formed. Virtue adds the question of perception: does the agent notice the partner as a whole person, recognise self-deception and sustain commitments when appetite changes? It also values communities that teach truthful practices of friendship and accountability.

Its danger is circularity and cultural capture. Calling a practice unchaste proves little unless the virtue is explained independently of the disputed norm. Historic ideals of modesty have often placed unequal burdens on women or sexual minorities. Lewis's distinction between propriety and chastity helps, but virtue language still needs examination through dignity, reciprocity and evidence of flourishing. A sound account forms desire without making conformity to one social stereotype the measure of character.

A high-attainment structure for unseen sexual-ethics questions

Define the disputed claim precisely and identify whether it concerns consent, status, purpose, consequence, virtue or scriptural authority. Then present the strongest version of each argument. For natural law, explain the relation among act, intention, procreation and union rather than saying that nature equals good. For Kant, formulate the maxim and test agency instead of merely writing people as ends. For utilitarianism, include long-term, indirect and distributed effects rather than adding pleasures and pains in the abstract.

Use comparisons that reveal the decisive premise. Infertility tests whether procreative form or outcome matters. Marriage tests whether public promise is necessary for relational goods. Deception tests whether consent is informed. Changing propriety tests whether moral virtue is identical with social convention. Same-sex relationships test whether the norm rests on procreation, complementarity, scripture or fidelity. A comparison should clarify an argument rather than use a person's life as a rhetorical device.

The judgement should state the hierarchy of reasons. Consent is indispensable, but is it sufficient? Does a theological premise bind only within a tradition, or is a public reason also offered? Are predicted harms evidenced and fairly distributed? Could the principle be defended to every person affected without humiliation? The strongest conclusion gives conditions and acknowledges a residual difficulty while remaining clear. Balanced analysis means fair representation, not refusing to decide.

AO2 workshop

Arguments, objections and judgements

Evaluation is not a scorecard. Each lens identifies the criterion that makes one response more persuasive than another.

Debate 01

Consent is sufficient to make a sexual relationship morally acceptable.

Case in support

Competent adults have authority over intimate choices, and a clear consent standard resists religious or social paternalism.

Challenge

Consent can coexist with deception, broken commitments, exploitation and harms to third parties; background power can also narrow meaningful choice.

Reasoned judgement

Valid consent is a non-negotiable threshold, not a complete account. Honesty, responsibility, power and the goods of relationship remain ethically relevant.

Debate 02

The natural purpose of sex is procreation.

Case in support

Reproductive organisation explains the biological kind of act, and natural law treats openness to life as a basic good rather than an optional consequence.

Challenge

Sex also has relational and unitive functions, many acts are infertile, and a biological description requires an additional premise before it yields a duty.

Reasoned judgement

Procreation is an intelligible good, but an exceptionless act-level norm succeeds only if its account of teleology and intentional frustration is defended.

Debate 03

Kantian ethics condemns sexual desire as objectifying.

Case in support

Appetite can focus on bodily use and replaceability, threatening recognition of the whole rational person.

Challenge

Desire can be reciprocal and integrated with consent, care and attention to another's ends; using someone as a means is not always using them merely as a means.

Reasoned judgement

Kant condemns bypassing agency, not embodied attraction as such. Deception, coercion and fungibility are stronger tests than desire alone.

Debate 04

Marriage is the only coherent setting for sex.

Case in support

A public lifelong covenant clarifies responsibility, fidelity and the meaning of bodily commitment, including duties towards family.

Challenge

Relational goods can exist outside marriage, while formal marriage can fail to secure consent or equality; institutions have plural civil and religious meanings.

Reasoned judgement

Marriage can embody important goods but the ethical argument must identify them. The label cannot substitute for assessment of truthfulness, care and power.

Debate 05

Changing sexual norms prove that sexual ethics is relative.

Case in support

Standards of propriety, partnership and acceptable conduct vary sharply across cultures and periods.

Challenge

Variation in belief does not prove there is no truth; consent, non-coercion and fidelity can criticise both old and new conventions.

Reasoned judgement

Cultural change undermines easy appeals to custom, not reasoned ethics. A defensible norm must explain its goods and harms across contexts.

Debate 06

Valid consent is sufficient to make a sexual relationship morally acceptable.

Case in support

Consent protects agency and blocks paternalistic substitution of an outsider's values for the informed choices of competent adults.

Challenge

Consenting partners can still deceive, betray promises, cultivate exploitation or ignore serious effects on third parties. Power and manufactured options can also weaken the quality of agreement.

Reasoned judgement

Consent is a non-negotiable threshold, not a complete ethic. Add honesty, reciprocity, fidelity to stated commitments, justice and attention to lasting welfare without using a richer ideal to erase agency.

Debate 07

The procreative purpose of sex creates an exceptionless moral rule.

Case in support

Natural law connects bodily form with intelligible goods of generation, union and responsible family life; a chosen act should not intentionally contradict a basic good.

Challenge

The move from biological capacity to exceptionless duty remains disputed, and faithful non-procreative relationships can realise intimacy, care and social stability without treating persons as instruments.

Reasoned judgement

The rule is compelling only if the act-type argument and authority of procreative form are defended. Outcome alone is insufficient, but invoking purpose without explaining its normative force is also insufficient.

Debate 08

Marriage is morally necessary for sex.

Case in support

Public, durable promise integrates vulnerability, exclusivity and possible parental responsibility in a form that private intention may not secure.

Challenge

The relevant goods can be present outside marriage and absent within it; legal or religious status does not guarantee consent, equality or care.

Reasoned judgement

Marriage can provide powerful institutional support for sexual goods. Whether it is necessary depends on a further covenantal or sacramental premise, not on the bare fact that commitment is valuable.

Debate 09

Kantian ethics condemns sexual desire as inevitably objectifying.

Case in support

Sexual appetite can focus on another's body as an instrument of satisfaction, and reciprocal use does not automatically restore the dignity lost through objectification.

Challenge

Embodied desire can include attention to the other's subjectivity, projects and freedom. Treating every desire as degradation creates shame and neglects mutual recognition.

Reasoned judgement

Kant exposes a persistent risk rather than proving inevitability. Desire is compatible with dignity where agency, refusal, truthfulness and the person's wider ends remain constitutive of the relationship.

Debate 10

Changing sexual norms show that sexual morality is relative.

Case in support

Standards of dress, family form and public expression vary, and inherited rules often reflect economic structure and unequal power rather than timeless truth.

Challenge

Disagreement and change do not establish that no judgement is better. Consent, non-coercion, honesty and protection from harm can criticise both historic and contemporary practices.

Reasoned judgement

Lewis's distinction helps: propriety is visibly variable, while moral principles require separate justification. Change creates an epistemic challenge, not an automatic proof of relativism.

Debate 11

Same-sex relationships cannot realise the goods central to sexual ethics.

Case in support

Traditional natural-law and scriptural arguments connect sex with male–female generative form and interpret that structure as integral to marital union.

Challenge

Same-sex relationships can display consent, fidelity, sacrifice, mutual support and stable care; critics dispute why procreative type should exclude those goods from moral recognition.

Reasoned judgement

The verdict turns on the controlling premise about embodiment, procreation and scriptural interpretation. It must be argued directly and applied without denying equal personal dignity or using statistical normality as morality.

Debate 12

Pornography is wrong because it necessarily objectifies.

Case in support

Its production and representation can commodify bodies, deny subjectivity and normalise scripts in which another person's agency is secondary to consumption.

Challenge

Objectification has several forms, and consensual representation does not always deny autonomy or subjectivity. Claims about harm need evidence and should not erase performer agency.

Reasoned judgement

No single verdict follows from the label alone. Evaluate consent, power, working conditions, representation, privacy and effects, while maintaining absolute safeguarding boundaries for anyone under eighteen.

Debate 13

Christian sexual ethics should change when experience conflicts with traditional interpretation.

Case in support

Experience reveals harms, faithful relationships and excluded perspectives that may expose a mistaken application or historically conditioned reading.

Challenge

Experience is interpreted and can reflect desire or current fashion; a tradition loses coherence if difficult texts are revised whenever their demands become unpopular.

Reasoned judgement

Experience should test interpretation without becoming its only authority. A revision must explain text, theological purpose and moral fruit more coherently than the inherited view, while tradition must answer credible evidence of harm.

Compare the scholars

A high-level essay does more than name thinkers: it identifies exactly where their assumptions, methods or conclusions diverge.

ScholarCore positionAO2 useQuotation or evidence
Thomas AquinasDominican theologian; father of Natural Law and author of the Five Ways.The anchor scholar for Natural Law, Conscience and Christian Moral Principles. Deploy the precepts and double effect in AO1, and use Sartre/Moore against him in AO2.“A fornicator seeks a pleasure which involves him in moral guilt.”
Joseph FletcherAmerican theologian who founded Situation Ethics: agape is the only absolute.The named scholar for Situation Ethics; also apply his agape approach to Euthanasia and Sexual Ethics.“Justice is love distributed.”
Immanuel KantGerman philosopher of duty; formulated the categorical imperative.The named scholar for Kantian Ethics; apply the humanity formula to Business and Sexual Ethics.“Act only on that maxim which you can will to become a universal law.”
Peter VardyContemporary philosopher of religion writing on the ethics of love.Cite on the ethics of love in Sexual Ethics.Use the scholar's argument accurately; a quotation is optional.
G. E. M. AnscombeCatholic philosopher defending traditional sexual ethics.Cite for the traditional/absolutist side of Sexual Ethics.Use the scholar's argument accurately; a quotation is optional.

Key quotations

Copy the exact wording into a retrieval list, then practise explaining why the quotation matters.

“Christianity ... thoroughly approves of the body”C. S. Lewis · Mere Christianity, Book III, ch. 5
“an object of appetite”Immanuel Kant · Lectures on Ethics, Duties towards the Body
“the individual is sovereign”John Stuart Mill · On Liberty, chapter I
“do no unjust harm”Margaret A. Farley · Just Love, chapter 6
“the body's grace”Rowan Williams · The Body's Grace

Practise Exam questions

Build a response

  • "Natural Law is the best approach to sexual ethics." Discuss.
  • "Religious ethics should adapt to changing attitudes to sex." Discuss.
  • Assess the usefulness of Kantian ethics in sexual ethics.

Apply Fresh practice question

Written independently in a 40-mark OCR-style format; this is not an official OCR past-paper question.

Original OCR-style practice · 40 marks

Covenant and faithfulness provide a sufficient basis for Christian sexual ethics. Discuss.

marriagenatural lawliberal Christianitypersonhood

Use the model-answer method →

Past questions

  1. AS 2023Agape is unhelpful when making decisions about sexual ethics. Discuss. (30)
  2. A2 June 2023Evaluate the view that utilitarianism provides the best approach to sexual ethics
  3. A2 June 2022‘Choices about sexual behaviour should only follow the approach of utilitarian ethics.’ Discuss.
  4. A2 November 2020Situation ethics provides the best approach to sexual ethics. Discuss
  5. A2 2019‘Natural Law provides the best approach to sexual ethics.’ Discuss
View all questions for this topic →

Recall and self-test

Retrieval cards

Say the point aloud before revealing it.

Self-test

Match the term to its definition

Choose one answer for each question. Your best score stays on this device.

Question 1Sex before marriage.
Question 2Adultery — sex outside one's marriage.
Question 3Sexual attraction to the same sex.

Recommended reading

Affiliate/paid links. As an Amazon Associate I earn from qualifying purchases. The recommendation is editorial; no price is shown because availability and pricing can change.

Core textbook

OCR A Level Religious Studies: Religion and Ethics (2020, ISBN 9781510479951)

An OCR-focused course textbook for securing the specification foundations of the Ethics paper.

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Revision guide

My Revision Notes: OCR Religion and Ethics (ISBN 9781510418059)

A concise companion for consolidating terminology, theories and exam-focused recall.

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Stretch reading

Christopher Bennett, What Is This Thing Called Ethics? 2nd ed. (ISBN 9780415832335)

Accessible academic reading that adds conceptual depth and sharper material for AO2.

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How to use the complete Ethics reading list

Go further Annotated reading