The Hinge
M/F · Vaginal penetration · Kneeling
Posed figure
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Keypoint template
Attributes
- Position family
- One-on-one
- Primary act
- Vaginal penetration
- Partner arrangement
- Kneeling
- Penetration type
- Vaginal
- Facing
- Front to back
- Dynamics
- Thrusting
- Support / surface
- Flat surface / bed
- Participant count
- Two
- Composition code
- M/F
- Source medium
- Video
- Physical difficulty
- Moderate
- Prevalence in adult media
- Occasional
- Intensity tier (compliance)
- Explicit
Common camera framing
Description: Both partners kneel one behind the other, and the front partner leans back onto locked arms so the torso opens away from the body behind. The lean is the hinge, and it turns an upright kneeling position into something with a working angle.
Variations: Hands on the floor behind or on the partner's thighs, and the depth of the lean sets the depth of entry. Sitting fully upright closes the hinge and ends the position.
On camera: The open torso is exactly what an upright kneeling position hides, so this is the version productions reach for when they need a rear-entry shape with the front of the body visible.
AI design considerations: Two kneeling figures stacked front to back, the forward one leaning back at roughly thirty degrees with weight through the arms. The lean angle is the identifying feature.
Generating this position
A starting prompt composed from the catalog vocabulary. Every tag is verified to exist and not be deprecated. Compose across wardrobe, scene and expression in the prompt builder.
Booru-tag checkpoints
1boy, 1girl, hetero, sex_from_behind, kneeling, leaning_back, arm_support, on_bed
negative: bad_anatomy, bad_hands, censored, monochrome, 2girls, 3girls, 2boys, 3boys
Image to video (Thrust (deep))
long-range reciprocating motion along the body axis, full amplitude, torso following the hips, camera is locked on a tripod and does not move.
Motion only. The still you condition on must already carry the position, wardrobe and scene: restating them causes drift.
Identifiers in other vocabularies
How this position is denoted elsewhere, and what each mapping discards. Full table in the crosswalk.
sex_from_behind encodes only rear entry, and its wiki names doggystyle, standing doggystyle, prone bone, spooning and reverse cowgirl inside it, so it also covers the catalog's upright kneeling-rear-embrace. It discards that both partners kneel and that the front partner leans back about thirty degrees onto locked arms with the torso opened away from the body behind, the hinge that gives the position its working angle; leaning_back and arm_support carry the lean, though leaning_back's wiki names standing or sitting figures rather than kneeling ones.
Actions this position admits
The position fixes who is where. These are the beats that are physically possible in it, from the action catalog. Contact through the characteristic beat is intermittent.
Camera moves that suit the geometry: Arc (partial), Orbit (360), Push in, Locked off.
Related positions
Part of the Erotic Pose Catalog open dataset · CC BY 4.0 · keypoints are idealised COCO-17 templates.