The Pump
M/F · Vaginal penetration · Standing
Posed figure
Help us fix this
Does this figure match the position?
Nobody has judged this figure yet. You would be the first.
Something wrong with the write-up?
Keypoint template
Attributes
- Position family
- One-on-one
- Primary act
- Vaginal penetration
- Partner arrangement
- Standing
- Penetration type
- Vaginal
- Facing
- Face to face
- Dynamics
- Thrusting
- Support / surface
- Edge of surface
- Participant count
- Two
- Composition code
- M/F
- Source medium
- Video
- Physical difficulty
- Low
- Prevalence in adult media
- Very common
- Intensity tier (compliance)
- Explicit
Common camera framing
Description: The receiving partner lies back with the hips right at the edge of the bed and the legs up, while the penetrating partner stands on the floor. The floor gives the standing partner full leg drive, which no kneeling position on a soft surface can match.
Variations: Legs held wide, folded to the chest, or resting on the standing partner's shoulders. Ankles gripped for leverage is the most common working form.
On camera: The single most repeatable setup in production: fixed height, fixed marks, full visibility and the performer's feet on solid ground.
AI design considerations: A supine figure with the pelvis at a surface edge and a standing figure on a lower plane. The floor and the mattress must be at different heights, or the drive angle makes no sense.
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, missionary, on_back, legs_up, spread_legs, standing, holding_another's_legs, bedside, 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.
missionary fixes only that a person lies on their back facing the partner, and it is the tag the catalog's butterfly entry already carries for the same hips-at-the-edge geometry, so this entry and butterfly cannot be told apart at the primary tag. It discards the hips placed right at the mattress edge and the penetrating partner standing on the floor at a lower plane, which is the whole source of the leg drive, and standing_sex cannot carry that partner because its wiki rules out a receiver lying on their back while the partner stands. standing, bedside and on_bed restore that one partner stands near the edge of a bed while the other lies on it, though bedside, whose wiki reads near the edge of a bed, does not place the hips at the mattress edge, and holding_another's_legs, which the missionary wiki names, pins the most common working form.
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: Locked off, POV (head-mounted), Arc (partial), Push in.
Related positions
Part of the Erotic Pose Catalog open dataset · CC BY 4.0 · keypoints are idealised COCO-17 templates.