{"schema":"https://ver.cy/schemas/card/1.0.0","id":"vr.tr.anal-sex","code":"thing-q8398","url":"https://ver.cy/models/thing/q8398/","name":"anal sex","alternateNames":["male-on-female anal sex","anal creampie","male-on-male anal sex","homosexual anal sex","pegging","gaping","anal fisting"],"kind":"thing","status":"published","version":"0.1.0-research.1","language":"en","classifiers":{"family":"Thing Registry","category":"Activities and processes","entryKind":"thing","plane":"ACT","domain":["ACT.ACT"],"industry":[],"navPath":"","tags":[],"facets":{}},"whatItIs":"Anal sex is sexual activity involving the anus, including external anal contact, oral-anal contact and anal penetration.","purpose":"Enable an AI agent to recognise an anal-sex episode, record its boundaries and current state, and determine which documentation, consent checks or support actions are appropriate.","scope":{"in":["Whether penetrative or non-penetrative anal sexual contact is intended, attempted or reported.","Episode boundaries, participants and act-specific roles.","Each participant's capacity, voluntary agreement, limits and changes of consent.","Reported contact routes, barriers, lubricant use and changes between anatomical sites.","Reported comfort, interruptions, completion and requests for follow-up."],"out":["Sexual orientation, gender identity and enduring relationship classifications.","Standalone models of oral sex, vaginal intercourse and non-penetrative sexual activities without anal involvement.","Clinical diagnoses, examination findings and treatment protocols.","Product specifications for condoms, lubricants and sexual devices.","Jurisdiction-specific legal determinations and investigative case management.","Explicit sexual coaching or erotic descriptions."],"boundaries":[]},"distinguishingFeatures":["Sexual involvement of the anus identifies the activity, whether contact is external or penetrative.","Anal penetration during a clinical examination or procedure is excluded unless a separately identifiable sexual episode is being described.","Penile, digital and device-mediated penetration must be distinguishable rather than inferred from the label alone.","Oral-anal and external anal contact belong within this concept and must be distinguished from penetration.","The activity label does not establish consent, participant gender, sexual orientation or relationship status."],"structure":{"bundles":[{"id":"anal-act-identity","name":"Anal act identity","description":"Establishes which anal activity is described and whether it belongs to this entry.","layers":[{"id":"contact-and-means","name":"Contact and means","description":"Identifies the anatomical contact and the reported means of penetration.","findings":[{"id":"penetration-classification","name":"Penetration classification","description":"Records intended, attempted or reported anal penetration separately from external or oral-anal contact.","questions":[{"text":"Was anal penetration proposed, attempted or reported to have occurred, or was contact exclusively external?","id":"penetration-classification-q01","kind":"definition"},{"text":"Which means of penetration were reported, and which details remain unknown?","id":"penetration-classification-q02","kind":"measurement"}]}]},{"id":"context-and-neighbours","name":"Context and neighbours","description":"Separates this sexual activity from adjacent acts and nonsexual procedures.","findings":[{"id":"registry-boundary","name":"Registry boundary","description":"Makes the reason for inclusion explicit without using consent or participant identity as a substitute for act classification.","questions":[{"text":"What reported context distinguishes this episode from an anal examination, treatment or other nonsexual activity?","id":"registry-boundary-q01","kind":"boundary"},{"text":"Does the description include oral-anal or external anal contact that needs a separate classification or an unresolved-boundary flag?","id":"registry-boundary-q02","kind":"boundary"}]}]}]},{"id":"participants-and-permission","name":"Participants and permission","description":"Records participants' segment-specific roles and the conditions under which participation is agreed.","layers":[{"id":"roles-and-capacity","name":"Roles and capacity","description":"Connects each participant to the anal segment and records whether valid agreement can be established.","findings":[{"id":"participant-position","name":"Participant position","description":"Tracks receiving, performing or self-directed roles alongside unresolved capacity or safeguarding concerns.","questions":[{"text":"Who receives or performs penetration in this segment, and is the activity partnered or self-directed?","id":"participant-position-q01","kind":"definition"},{"text":"What information establishes or leaves unresolved each participant's capacity and freedom to agree, including age-related safeguarding concerns?","id":"participant-position-q02","kind":"provenance"}]}]},{"id":"specific-agreement","name":"Specific agreement","description":"Records agreement and limits for the particular means and conditions of anal contact.","findings":[{"id":"permission-and-withdrawal","name":"Permission and withdrawal","description":"Preserves each participant's stated limits and any subsequent uncertainty or withdrawal.","questions":[{"text":"What agreement was expressed for this anal activity, including penetration means and any required barrier or other condition?","id":"permission-and-withdrawal-q01","kind":"provenance"},{"text":"Has any participant withdrawn agreement, expressed uncertainty or indicated a limit that requires the activity to pause or stop?","id":"permission-and-withdrawal-q02","kind":"action"}]}]}]},{"id":"contact-conditions","name":"Contact conditions","description":"Describes reported barriers, lubricant use and movement of contacting body parts or devices.","layers":[{"id":"barriers-and-lubricants","name":"Barriers and lubricants","description":"Captures what was reportedly used and whether its condition changed.","findings":[{"id":"reported-contact-configuration","name":"Reported contact configuration","description":"Records barrier placement and integrity and lubricant identification without asserting compatibility or protection.","questions":[{"text":"Which barriers and lubricants were reportedly used for the anal segment, and which product details are unknown?","id":"reported-contact-configuration-q01","kind":"measurement"},{"text":"Was any barrier breakage, slippage, removal or replacement reported, and when did it occur relative to anal contact?","id":"reported-contact-configuration-q02","kind":"measurement"}]}]},{"id":"site-and-device-transitions","name":"Site and device transitions","description":"Tracks contact changes involving the anus, other anatomical sites and shared devices.","findings":[{"id":"contact-sequence","name":"Contact sequence","description":"Preserves the sequence of contact and reported changes between segments for later interpretation.","questions":[{"text":"Did a contacting body part or device move between the anus, another anatomical site or another participant?","id":"contact-sequence-q01","kind":"measurement"},{"text":"What cleaning, barrier replacement or device replacement was reported at each transition, and what remains unrecorded?","id":"contact-sequence-q02","kind":"provenance"}]}]}]},{"id":"episode-course-and-response","name":"Episode course and response","description":"Tracks the anal activity's progression, participant feedback and reasons for interruption.","layers":[{"id":"segment-lifecycle","name":"Segment lifecycle","description":"Separates planning, attempted penetration, active contact and the end of a segment.","findings":[{"id":"progression-and-stopping","name":"Progression and stopping","description":"Records transitions without treating attempted penetration as completed penetration or a pause as permission to resume.","questions":[{"text":"Which anal-contact segments were proposed, attempted, started, paused, stopped or completed?","id":"progression-and-stopping-q01","kind":"measurement"},{"text":"What change in consent, means, participant role or contact conditions requires a new segment or a renewed permission check?","id":"progression-and-stopping-q02","kind":"action"}]}]},{"id":"comfort-and-symptoms","name":"Comfort and symptoms","description":"Captures participant-reported responses during and after anal contact.","findings":[{"id":"response-and-support","name":"Response and support","description":"Keeps reports of comfort, pain, bleeding or other concerns distinct from inferred injury or diagnosis.","questions":[{"text":"What comfort, discomfort, pain, bleeding or other symptoms were reported, by whom and at what time relative to anal contact?","id":"response-and-support-q01","kind":"measurement"},{"text":"Has a participant requested stopping, practical support or clinical assessment, and what response remains outstanding?","id":"response-and-support-q02","kind":"action"}]}]}]},{"id":"sensitive-record-and-follow-up","name":"Sensitive record and follow-up","description":"Controls the evidential meaning, disclosure and onward use of the anal-sex episode record.","layers":[{"id":"attribution-and-minimisation","name":"Attribution and minimisation","description":"Retains only justified anal-act details and identifies their source.","findings":[{"id":"account-status","name":"Account status","description":"Distinguishes a participant account, third-party report, hypothetical scenario and agent inference.","questions":[{"text":"Is each claim about anal penetration, consent or contact conditions a direct account, a third-party report, a hypothetical statement or an inference?","id":"account-status-q01","kind":"provenance"},{"text":"Which intimate details are necessary for the authorised task, and which can be omitted or generalised?","id":"account-status-q02","kind":"action"}]}]},{"id":"assessment-handoff","name":"Assessment handoff","description":"Connects unresolved concerns to appropriate neighbouring models without embedding clinical or legal conclusions.","findings":[{"id":"follow-up-boundary","name":"Follow-up boundary","description":"Records requested follow-up and the minimum relevant episode information needed for an authorised handoff.","questions":[{"text":"Does the unresolved concern involve symptoms, reported exposure, consent or safeguarding, and which neighbouring workflow owns its assessment?","id":"follow-up-boundary-q01","kind":"boundary"},{"text":"What disclosure is authorised, to whom, and which timing and anal-contact details are necessary for that specific follow-up?","id":"follow-up-boundary-q02","kind":"action"}]}]}]},{"id":"evidence-and-external-alignment","name":"Evidence and external alignment","description":"What the world already says about this thing, gathered so the model can be checked against it.","layers":[{"id":"reported-evidence","name":"Reported evidence","description":"Findings from the breadth pass, kept separate from the structural claims.","findings":[{"id":"evidence-kinds","name":"Kinds and varieties","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these kinds and varieties hold for the sense of anal sex this model covers, and on what evidence?","id":"evidence-kinds-q01","kind":"provenance"}]},{"id":"evidence-identifiers","name":"Identifiers and schemes","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these identifiers and schemes hold for the sense of anal sex this model covers, and on what evidence?","id":"evidence-identifiers-q01","kind":"provenance"}]},{"id":"evidence-standards-and-regulation","name":"Standards and regulation","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these standards and regulation hold for the sense of anal sex this model covers, and on what evidence?","id":"evidence-standards-and-regulation-q01","kind":"provenance"}]},{"id":"evidence-real-world-use","name":"Real-world use","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these real-world use hold for the sense of anal sex this model covers, and on what evidence?","id":"evidence-real-world-use-q01","kind":"provenance"}]},{"id":"evidence-measurements","name":"Typical measurements","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these typical measurements hold for the sense of anal sex this model covers, and on what evidence?","id":"evidence-measurements-q01","kind":"provenance"}]},{"id":"evidence-failure-modes-and-hazards","name":"Failure modes and hazards","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these failure modes and hazards hold for the sense of anal sex this model covers, and on what evidence?","id":"evidence-failure-modes-and-hazards-q01","kind":"provenance"}]},{"id":"evidence-regional-variation","name":"Regional variation","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these regional variation hold for the sense of anal sex this model covers, and on what evidence?","id":"evidence-regional-variation-q01","kind":"provenance"}]},{"id":"evidence-neighbours","name":"Neighbouring kinds and how to tell them apart","description":"Reported by the breadth pass; each item needs checking against its source before it becomes normative.","questions":[{"text":"Which of these neighbouring kinds and how to tell them apart hold for the sense of anal sex this model covers, and on what evidence?","id":"evidence-neighbours-q01","kind":"provenance"}]}]}]}]},"agentConduct":{"may":["Give factual sexual health information from medical and public health sources.","Point people to sexual health services."],"mustNot":["Produce sexual content involving minors in any form.","Describe or depict sexual activity involving anyone who has not consented.","Infer or disclose a person's sexual practices or orientation.","Stigmatize people for lawful consensual sexual practices."],"requiresHuman":["Clinical examination or treatment."]},"ethics":{"considerations":["Consent and dignity are central to any sexual activity.","Stigma deters people from seeking sexual health care."],"affectedParties":["People who engage in it","LGBTQ people","Patients"]},"owners":{"steward":"Each consenting adult answers for their own conduct.","roles":[],"masterSystems":[]},"relations":[{"target":"Q484744","type":"parent","note":"registry parent class"}],"interaction":{"identity":{"applicability":"required","items":["Vercy registry: vr.tr.anal-sex","Wikidata: Q8398 (https://www.wikidata.org/wiki/Q8398)"]},"properties":{"applicability":"not-applicable","items":["Episode state: proposed | agreed | started | paused | stopped | completed | unknown","Anal contact category: penetrative | attempted penetration | external contact only | oral-anal contact only | unclear","Penetration means: penile | digital | device-mediated | other reported means | none | unknown","Participant role by segment: participant linked to receiving penetration, performing penetration or self-directed activity within a particular segment","Consent for the specific segment: affirmatively reported | conditional | uncertain | withdrawn | absent | not recorded, separately for each participant","Barrier and lubricant configuration: reported type, placement and use; changed | unchanged | failed | unknown where applicable","Anatomical contact sequence: ordered links between body part or device, contacted anatomical site and barrier configuration","Participant-reported physical response: comfortable | discomfort | pain | bleeding | other reported symptom | unknown, with participant wording and timing"]},"recognition":{"applicability":"not-applicable","items":[]},"capabilities":{"applicability":"required","items":["Classify a reported activity as core anal penetration, a boundary case or a neighbouring activity.","Separate an encounter into anal-contact segments when means, roles, consent or conditions change.","Identify missing or withdrawn agreement and suspend any assumption that continuation is permitted.","Record contact sequences and reported barrier changes for an appropriately authorised assessment.","Capture a pause, stop or request for support and route health questions to a separate clinical workflow.","Produce a minimal, access-controlled episode summary that preserves uncertainty and participant attribution."]},"hazards":{"applicability":"required","items":["Sexually transmitted infections without protection.","Injury when activity is forced or unsafe."]},"interfaces":{"applicability":"required","items":["The Sexual Offences Act 2003, enacted by the Parliament of the United Kingdom, provides the principal framework in England and Wales for consent and sexual offenses involving anal penetration or sexual touching."]},"context":{"applicability":"required","items":["The term occurs in sexual health education, clinical histories and research describing sexual contact involving the anus.","It supports documentation of the reported type of contact, consent and symptoms because the broad term alone does not establish what occurred."]}},"sources":[{"title":"Estimating per-act HIV transmission risk: a systematic review - Patel et al., AIDS (Lippincott; CDC authors), 2014","url":"","note":"Per-act HIV transmission probabilities for receptive and insertive anal intercourse used in counselling and modelling."},{"title":"HIV transmission risk through anal intercourse: systematic review, meta-analysis and implications for HIV prevention - Baggaley, White and Boily, International Journal of Epidemiology (Oxford University Press), 2010","url":"","note":"Elevated per-act and per-partner HIV risk of anal versus vaginal intercourse; insertive vs receptive difference."},{"title":"Changes in sexual attitudes and lifestyles in Britain through the life course and over time: findings from Natsal - Mercer et al., The Lancet, 2013","url":"","note":"Population survey evidence that heterosexual anal intercourse is a non-rare reported practice in Britain, with cohort change over time."},{"title":"Sexual behavior in the United States: results from a national probability sample of men and women ages 14-94 - Herbenick et al., Journal of Sexual Medicine (NSSHB), 2010","url":"","note":"U.S. probability-sample reporting of anal sex by age and gender in the general population."},{"title":"Lawrence v. Texas, 539 U.S. 558 (2003) - Supreme Court of the United States","url":"","note":"U.S. constitutional holding that consensual adult sodomy statutes are invalid; landmark legal status of private anal sex."},{"title":"Consolidated guidelines on HIV, viral hepatitis and STI prevention, diagnosis, treatment and care for key populations - World Health Organization","url":"","note":"International clinical framing of anal sex as a key exposure for HIV/STI prevention, rectal testing, and PrEP in key populations."},{"title":"Wikidata item Q8398: anal sex","url":"https://www.wikidata.org/wiki/Q8398","note":"identity and sense of the item"},{"title":"Wikipedia: Anal sex","url":"https://en.wikipedia.org/wiki/Anal_sex","note":"general description of the item"}],"openQuestions":["Does the authoritative registry intend anal sex to include digital and device-mediated penetration, self-directed activity, external anal contact and oral-anal contact?","Does an existing Vercy world model already own this concept or any proposed bundle, requiring a link instead of a duplicate model?","Which evidence standards and jurisdiction-specific rules should govern capacity, age-related safeguarding and consent-state assessment?","Which clinically validated criteria should a separate health model use to assess reported symptoms or exposures, and what minimum episode information does it require?","What retention, access and disclosure rules apply to intimate episode records in the intended deployment context?"],"resources":{"spec":"/models/things/publications/thing-q8398/spec.json"},"provenance":{"origin":"thing registry research (pass 2)","builtFrom":["models/things/publications/thing-q8398/spec.json"],"providers":["Codex","Grok"],"researchStatus":"unreviewed","generatedAt":"2026-09-07T13:38:27Z","builder":"tools/build_cards.py@1.0.0"},"completeness":{"sections":{"classifiers":"filled","whatItIs":"filled","purpose":"filled","distinguishingFeatures":"filled","structure":"filled","agentConduct":"filled","ethics":"filled","owners":"filled","relations":"filled","interaction.identity":"filled","interaction.properties":"not-applicable","interaction.recognition":"not-applicable","interaction.capabilities":"filled","interaction.hazards":"filled","interaction.interfaces":"filled","interaction.context":"filled","sources":"filled"},"notes":{"_gate":"Published through the thing publication gate 1.0 on 2026-10-07T12:16:34+00:00: completeness 1.00; sense: Wikidata description; 2 live sources; review by codex: pass","interaction.properties":"Plane ACT: no invented physical properties.","interaction.recognition":"This activity is treated as a procedure rather than a physical object, so visual identification cues are not applicable."},"score":1.0}}