The Peg
M/F · Vaginal penetration · Side-lying
Posed figure
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Keypoint template
Attributes
- Position family
- One-on-one
- Primary act
- Vaginal penetration
- Partner arrangement
- Side-lying
- Penetration type
- Vaginal
- Facing
- Variable
- 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: The receiving partner lies on one side with the lower leg straight and the upper leg raised nearly vertical, and the penetrating partner kneels straddling the lower thigh. The vertical leg is the peg, and holding it upright is what keeps the hips open.
Variations: Upper leg held at the calf, at the ankle, or resting along the partner's chest. Lowering it collapses the position into an ordinary side entry.
On camera: The near-vertical leg gives a strong graphic line and leaves the whole front of the body open, which is why the shape recurs under several different names.
AI design considerations: A side-lying figure with one leg flat and one close to vertical, and a kneeling figure between them. The ninety-degree separation between the two legs is the identifying detail.
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, leg_lift, on_side, kneeling, straddling, holding_another's_leg, 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.
- leg_liftbroader
leg_lift is a bare posture tag for one leg lifted up and away from the other, which rests, and it fixes no body orientation, partner or penetration, so it covers solo, clothed, standing and lying poses alike. It keeps the raised upper leg spread wide from the resting lower leg, but not the near-vertical angle that makes the peg this entry is named for, and it discards the side-lying receiver, the penetrating partner kneeling astride the lower thigh, and the partner holding the raised leg upright, which only the support tags carry.
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), Locked off, Push in, Crane up.
Related positions
Part of the Erotic Pose Catalog open dataset · CC BY 4.0 · keypoints are idealised COCO-17 templates.