Fishes Interlock
M/F · Vaginal penetration · Receiving partner on top
Posed figure
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Keypoint template
Attributes
- Position family
- One-on-one
- Primary act
- Vaginal penetration
- Partner arrangement
- Receiving partner on top
- Penetration type
- Vaginal
- Facing
- Face to face
- Dynamics
- Riding
- Support / surface
- Flat surface / bed
- Participant count
- Two
- Composition code
- M/F
- Source medium
- Illustrative
- Physical difficulty
- Low
- Prevalence in adult media
- Common
- Intensity tier (compliance)
- Explicit
Common camera framing
Description: The receiving partner takes the top facing the penetrating partner, with the legs interlocked rather than simply straddling. The interlock is what the classical name marks: the legs alternate rather than sitting outside, which keeps the pelvises tighter than a plain straddle.
Variations: One leg through, both through, or a straddle with the ankles hooked behind. Unhooking returns it to a standard astride position.
On camera: The leg weave is only visible low and in profile. From above it reads as an ordinary cowgirl, which is why the name rarely survives into modern catalogs.
AI design considerations: Alternating legs between two figures with the upper one upright. As with the fitter-in, the weave order has to be decided explicitly or the limbs merge.
Historical provenance
Where this position appears in historical sex manuals, erotic art & literature · full timeline →
- Fishes InterlockChinese (Han dynasty tradition) →
Su Nü Jing (Classic of the Plain Girl) · attributed to the Plain Girl dialogues with the Yellow Emperor · c. 2nd century BCE–2nd century CE; preserved in the Japanese Ishimpō (984 CE)
Seventh of the Nine Ways: the receiving partner astride and facing.
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, cowgirl_position, interlocked_legs, sitting_on_person, on_back, on_bed
negative: bad_anatomy, bad_hands, censored, monochrome, 2girls, 3girls, 2boys, 3boys
Image to video (Ride (grind))
upper figure stays seated and moves forward and back, no vertical travel, 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.
cowgirl_position covers the facing ride over a supine partner at any torso angle and asks only that the receiving partner straddle the partner below. It discards the interlock this record treats as defining, the receiving partner's legs alternating with the partner's instead of sitting outside them, which keeps the pelvises tighter than a plain straddle. interlocked_legs carries the weave, but it is a thin posture tag with no sexual sense.
Fishes InterlockcloseSu Nü Jing (Classic of the Plain Girl)Attested source name. Eighth of the Nine Ways, not the seventh as the seed note says: the partner supine, the receiving partner astride with the thighs forward, a slow shallow entry, and the receiving partner alone moving. The text describes a plain straddle and no leg interlock, so the weave this record treats as defining is not attested.
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 maintained.
Camera moves that suit the geometry: Arc (partial), Locked off, POV (head-mounted), Push in.
Related positions
Part of the Erotic Pose Catalog open dataset · CC BY 4.0 · keypoints are idealised COCO-17 templates.