Anvil
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
- Face to face
- 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: A lift defines the anvil. The penetrating partner kneels upright and raises the receiving partner's hips off the mattress and onto their thighs, so the receiving pelvis angles upward while the shoulders and head stay grounded. The legs hook over the kneeling partner's shoulders or arms, closing the structure; the receiving body becomes a ramp from grounded shoulder blades to elevated hips, with the kneeling torso as the support column.
Variations: The hips can rest on the thighs or be held in the air by a waist grip, and the legs can ride on the shoulders or in the crooks of the elbows; each choice changes the tilt.
On camera: The upright kneeling torso keeps the frame open in side profile, and a low angle reads the hip elevation directly; the pose circulates mainly in video.
AI design considerations: Anchor an upright kneeling figure, raise the partner's pelvis onto its lap, and register the ankles at its shoulder line; the grounded upper back separates this from a full fold.
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, anvil_position, legs_up, knees_to_chest, kneeling, deep_penetration, vaginal, 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.
- anvil_positionexact
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), Crane down, Push in, Locked off.
Related positions
Part of the Erotic Pose Catalog open dataset · CC BY 4.0 · keypoints are idealised COCO-17 templates.