Pose Catalog Taxonomy

17 controlled-vocabulary dimensions across 4 facets. Every value in the open dataset draws from this vocabulary.

Pose structure

7 dimensions · v1.0.0 · CC-BY-4.0

Structural classification of erotic poses and sex positions as they appear in adult video and print. Covers the position family (solo / one-on-one / group), the primary act, the partner arrangement, penetration type, facing, dynamics, and the surface or support used. The arrangement sub-groups follow the widely-used structural taxonomy of named positions (penetrating-partner-on-top, from-behind, receiving-partner-on-top, seated/kneeling, standing, side-lying, inverted) documented in reference works such as the Wikipedia 'List of sex positions' and Wikidata's 'sex position' (Q8394) class; all bucket definitions here are original wording. Reference-grade descriptors intended for content tagging, search facets, and text-to-image prompt conditioning. Adults only.

Dimensions

  • Position family

    categorical

    Highest-level structural grouping by number of participants.

    Top-level partition by participant count, aligned with the group-vs-pair distinction used across sexology reference works.

    Values (3)

    • soloSoloA single participant; self-stimulation or display posing.
    • one_on_oneOne-on-oneTwo participants.
    • groupGroupThree or more participants.
  • Primary act

    categorical

    The dominant sexual act that defines the position. A position may involve more than one act; this records the defining one.

    Aligned with the exclusively-penetrative / non-exclusively-penetrative / non-penetrative partition used in named-position reference taxonomies.

    Values (7)

    • vaginal_penetrationVaginal penetrationPenile or object vaginal penetration is the defining act.
    • anal_penetrationAnal penetrationPenile or object anal penetration is the defining act.
    • oralOralOral-genital or oral-anal contact is the defining act.
    • manualManualManual stimulation (hand/finger) is the defining act.
    • non_penetrativeNon-penetrativeBody-to-body contact without penetration (e.g. frottage, intercrural, tribadism).
    • display_soloSolo displaySolo posing or self-stimulation for the camera; no partner contact.
    • mixedMixedMultiple simultaneous acts of comparable prominence (common in group positions).
  • Partner arrangement

    categorical

    The spatial arrangement of the participants relative to one another.

    Structural sub-groups mirror the named-position organisation in the Wikipedia 'List of sex positions' (penetrating-on-top, from-behind, receiving-on-top, sitting/kneeling, standing, less-common/inverted); wording original.

    Values (11)

    • penetrating_on_topPenetrating partner on topPenetrating partner above the receiving partner (e.g. missionary family).
    • receiving_on_topReceiving partner on topReceiving partner astride or above (e.g. cowgirl / woman-on-top family).
    • from_behindFrom behindPenetration or contact from the rear (e.g. doggy style, prone bone, spoons).
    • seatedSeatedOne or both partners seated (e.g. lotus, lap position).
    • kneelingKneelingOne or both partners kneeling.
    • standingStandingOne or both partners standing, possibly with support.
    • side_lyingSide-lyingBoth partners on their sides (e.g. spoons, lateral).
    • invertedInvertedOne partner partly or fully inverted (e.g. piledriver, suspended).
    • head_to_toeHead-to-toe (mutual)Reciprocal, oriented head-to-toe (e.g. 69).
    • over_faceOver the faceOne partner positioned above the other's face (e.g. facesitting).
    • solo_arrangementSoloSingle participant; no partner arrangement.
  • Penetration type

    categorical

    Which orifices are penetrated and by how many partners, where applicable.

    Descriptive enumeration of penetration configurations, including the multi-penetration terms catalogued on Wikidata.

    Values (9)

    • noneNoneNo penetration.
    • vaginalVaginalSingle vaginal penetration.
    • analAnalSingle anal penetration.
    • oralOralOral penetration.
    • manual_insertionManual insertionHand or finger insertion.
    • double_vaginalDouble vaginalTwo simultaneous vaginal penetrations.
    • double_analDouble analTwo simultaneous anal penetrations.
    • double_penetrationDouble penetration (vaginal + anal)Simultaneous vaginal and anal penetration by different partners.
    • multipleMultiple / otherThree or more simultaneous penetrations, or a combination not otherwise listed.
  • Facing

    categorical

    Orientation of participants relative to each other.

    Relative orientation descriptor used in position taxonomies.

    Values (5)

    • face_to_faceFace to facePartners face each other.
    • front_to_backFront to backOne partner's front to the other's back.
    • head_to_toeHead to toeReversed, reciprocal orientation.
    • side_by_sideSide by sidePartners aligned laterally.
    • variableVariableOrientation varies or is not fixed.
  • Dynamics

    categorical

    The characteristic motion of the position, relevant to video vs. still-image depiction.

    Motion descriptor for distinguishing static hold poses from active positions in moving-image media.

    Values (5)

    • static_holdStatic holdA held pose with little movement; typical of print stills.
    • thrustingThrustingReciprocating penetrative motion.
    • grindingGrindingCircular or rocking contact motion.
    • ridingRidingReceiving partner drives vertical motion from above.
    • bobbingBobbingRhythmic oral motion.
  • Support / surface

    categorical

    The surface or means of support the position relies on.

    Aligned with the 'furniture and apparatus' distinctions drawn in named-position references.

    Values (8)

    • bed_flatFlat surface / bedHorizontal surface such as a bed or floor.
    • edge_of_surfaceEdge of surfaceOne partner at the edge of a bed or table.
    • against_wallAgainst a wallWall used for bracing, usually standing.
    • standing_unsupportedStanding, unsupportedStanding without external bracing.
    • seated_furnitureSeated on furnitureChair, couch, or similar.
    • partner_supportedPartner-supportedOne partner bears the other's weight (e.g. carried).
    • suspendedSuspendedOne partner suspended or largely off any surface.
    • apparatusApparatusPurpose-built furniture or apparatus is central to the position.
References (4)
  1. Wikidata. Sex position (Q8394). https://www.wikidata.org/wiki/Q8394 (structured data CC0).
  2. Wikipedia contributors. List of sex positions. https://en.wikipedia.org/wiki/List_of_sex_positions (structure referenced; wording original).
  3. Vatsyayana. Kama Sutra (public domain) — historical named-position source.
  4. Danbooru tag group: posture and sex_acts — folksonomy structure for position and participant-composition axes.

Participant composition

4 dimensions · v1.0.0 · CC-BY-4.0

The number and apparent-gender make-up of the participants in a pose, and their roles. Adult media conventionally encodes multi-person composition with letter codes (M = apparent male, F = apparent female), e.g. MMF or FFM; that convention is reproduced here for interoperability with existing adult-industry and booru-style tagging. Codes describe apparent on-camera presentation only and imply nothing about identity. This axis is orthogonal to pose structure: the same structural position can occur across several compositions. Adults only.

Dimensions

  • Participant count

    ordinal

    Number of participants in the depiction.

    Direct count of participants depicted.

    Values (4)

    • oneOneSolo.
    • twoTwoA pair.
    • threeThreeThreesome.
    • four_plusFour or moreFour or more participants.
  • Composition code

    categorical

    Apparent-gender make-up of the participants, in the conventional letter-code form.

    Adult-industry / booru letter-code convention (M = apparent male, F = apparent female); describes apparent presentation only.

    Values (11)

    • solo_fSolo (F)One apparent-female participant.
    • solo_mSolo (M)One apparent-male participant.
    • MFM/FOne apparent-male and one apparent-female participant.
    • FFF/FTwo apparent-female participants.
    • MMM/MTwo apparent-male participants.
    • MMFMMFTwo apparent-male, one apparent-female.
    • FFMFFMTwo apparent-female, one apparent-male.
    • MFMMFMMale-female-male arrangement (positional variant of MMF).
    • FFFFFFThree apparent-female participants.
    • MMMMMMThree apparent-male participants.
    • group_mixedGroup (mixed)Four or more, mixed or unspecified make-up.
  • Receiving partners

    ordinal

    How many participants are in the receiving role.

    Count of partners in the receiving role in the depicted act.

    Values (4)

    • r00
    • r11
    • r22
    • r3_plus3+
  • Penetrating partners

    ordinal

    How many participants are in the penetrating role.

    Count of partners in the penetrating role in the depicted act.

    Values (4)

    • p00
    • p11
    • p22
    • p3_plus3+
References (2)
  1. Danbooru tag group: sex_acts — participant-composition letter codes (MMF/FFM/…) and solo/duo/group tags.
  2. e621 tagging system — solo / duo / group participant tags.

Presentation & medium

5 dimensions · v1.0.0 · CC-BY-4.0

How a pose is presented to the viewer: the source medium (adult video vs. print/magazine), the camera framing commonly associated with it, its physical difficulty, its prevalence, and an intensity tier used for compliance gating. The intensity tier mirrors the three-level model already used in the platform's generation pose library (illustrative / suggestive / explicit) so that downstream consumers can filter by the same contract. Adults only.

Dimensions

  • Source medium

    categorical

    The medium in which the pose characteristically appears.

    Distinguishes moving-image (video) from still-image (print/magazine) depiction conventions.

    Values (4)

    • videoVideoPrimarily a moving-image position (motion is intrinsic).
    • magazineMagazine / printPrimarily a still-image display pose.
    • bothBothCommon in both video and print.
    • illustrativeIllustrativeChiefly a reference or diagrammatic depiction.
  • Common camera framing

    categorical

    The camera framing most characteristic of the pose. A pose may support several; this records the typical primary framings.

    Cinematographic framing descriptors as applied in adult media production.

    Values (8)

    • pov_penetratingPOV (penetrating)Point-of-view from the penetrating partner.
    • pov_receivingPOV (receiving)Point-of-view from the receiving partner.
    • side_profileSide profileLateral full-body framing.
    • overheadOverheadFrom above.
    • low_angleLow angleFrom below.
    • rearRearFrom behind the receiving partner.
    • close_upClose-upTight framing on the point of contact.
    • wide_full_bodyWide / full bodyBoth participants fully in frame.
  • Physical difficulty

    ordinal

    How physically demanding the pose is (strength, flexibility, balance).

    Qualitative rating of strength, flexibility, and balance demand.

    Values (4)

    • lowLowComfortable and sustainable for most people.
    • moderateModerateSome flexibility or stamina required.
    • highHighNotable flexibility, strength, or balance required.
    • advanced_athleticAdvanced / athleticDemanding; often performed for camera rather than comfort.
  • Prevalence in adult media

    ordinal

    How commonly the pose appears in adult video and print.

    Qualitative estimate of how frequently the position is depicted.

    Values (4)

    • very_commonVery common
    • commonCommon
    • occasionalOccasional
    • nicheNiche
  • Intensity tier (compliance)

    ordinal

    Compliance-gating tier. Consumers may filter to suggestive-and-below where an explicit surface is not authorised.

    Mirrors the platform generation pose-library tier model (Sfw/Suggestive/Explicit).

    Values (3)

    • illustrativeIllustrativeClothed or diagrammatic; safe for general reference.
    • suggestiveSuggestiveImplied or partially clothed; no explicit act depicted.
    • explicitExplicitAdult/explicit act depicted. Gate behind an age-verified surface.
References (2)
  1. Internal: LatinaCastings.Services PoseSceneLibrary PoseTier (Sfw/Suggestive/Explicit) — the tier contract mirrored here.
  2. Adult-media production framing conventions (POV, side, overhead, rear).

Keypoint schema

1 dimensions · v1.2.0 · CC-BY-4.0

Specification for the per-participant pose keypoints shipped with the catalog. Keypoints use the 17-joint COCO Keypoint layout (the de-facto standard for 2D human pose), so the catalog's named positions can be consumed by any pipeline already built around COCO. Coordinates are IDEALISED, SCHEMATIC TEMPLATES — not motion-captured or image-derived. Each catalog participant references a base posture from the base-skeleton library and a placement transform (translate, scale, rotate, flip); the build step composes the final scene-space keypoints from those. This provides the symbolic-to-geometric bridge that named-position vocabularies (Wikidata, Wikipedia) lack and that keypoint datasets (COCO, MPII) provide only as unnamed coordinates.

Dimensions

  • Base posture

    categorical

    The canonical body posture a participant is composed from. Scene arrangement is produced by the placement transform.

    Canonical schematic skeletons defined in keypoint-base-skeletons.json (v1.0.0).

    Values (17)

    • standingStandingUpright, weight on both feet. Profile, facing +x.
    • kneelingKneeling (upright)Upright torso, weight on the knees, shins back along the ground. Profile, facing +x.
    • kneeling_sitKneeling, sitting on heelsKneeling with the pelvis lowered onto the heels. Profile, facing +x.
    • seatedSeatedSitting on the ground, knees raised. Profile, facing +x.
    • seated_lapSeated on lapUpright seat on a partner's lap, legs wrapped forward around them. Profile, facing +x.
    • supineSupineLying on the back, body horizontal, face up. Profile, head-left.
    • supine_legs_upSupine, legs raisedOn the back with hips flexed, knees up and ankles raised. Profile, head-left.
    • proneProneLying face down, body horizontal, forearms under. Profile, head-left.
    • plank_overPlank overBody inclined over a lying partner: arms extended to the ground, knees down, hips low. Profile, head-left.
    • all_foursAll foursOn hands and knees, torso horizontal. Profile, facing +x.
    • side_lyingSide-lyingLying on one side, knees drawn forward in a shallow Z. Profile, head-left.
    • astrideAstride (kneel-straddle)Kneeling straddle over a horizontal partner, torso upright, shins back. Profile, facing +x.
    • invertedInverted (shoulder-stand)Shoulders and head on the ground, hips raised vertically, legs folding back. Profile.
    • squat_overSquat overStanding deep squat above a partner, knees strongly bent. Profile, facing +x.
    • arch_supineArched supineOn the back with hips lifted and back arched, feet planted (display arch/bridge). Profile, head-left.
    • standing_bentStanding, bent overStanding with the torso folded forward at the hips, hands toward the floor or a support. Profile, facing +x.
    • standing_carryCarried (standing)Held off the ground by a standing partner, torso upright, legs wrapped or held forward. Profile, facing +x.
References (2)
  1. Lin T-Y et al. (2014). Microsoft COCO: Common Objects in Context. ECCV.
  2. COCO Keypoint Detection Task — 17-keypoint person layout.