T-square

M/F · Vaginal penetration · Side-lying

Posed figure

T-square sex position — posed figure showing body placement for 2 people

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Keypoint template

ReceivingPenetratingCOCO-17 template · schematic, not to scale

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
Illustrative
Physical difficulty
Moderate
Prevalence in adult media
Niche
Intensity tier (compliance)
Explicit

Common camera framing

Overhead

Description: The receiving partner lies on the back with knees raised while the penetrating partner lies on their side at a right angle, hips beneath the receiving partner's raised thighs — the bodies forming a T from above.

Variations: The receiving partner's legs rest across the partner's hip or drape over their waist.

On camera: Genuinely reads only from overhead; rare in production, common in position guides.

AI design considerations: A perpendicular two-body arrangement — best depicted top-down; profile views inevitably foreshorten one body.

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, on_back, on_side, legs_up, spread_legs, on_bed, vaginal

negative: bad_anatomy, bad_hands, censored, monochrome, 2girls, 3girls, 2boys, 3boys

Image to video (Thrust (shallow))

short-range reciprocating motion along the body axis, small amplitude, hips leading, 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.

Expected figure count: 2. Global pose conditioning does not make a diffusion model count bodies. Count figures and limbs at full size before judging quality, because thumbnails hide the failure.

Identifiers in other vocabularies

How this position is denoted elsewhere, and what each mapping discards. Full table in the crosswalk.

  • no identifier existsnone

    Relation is none, so there is no mapping and therefore nothing for a loss statement to measure. The blank is deliberate rather than an omission: no tag in the permitted vocabulary denotes this perpendicular side-lying arrangement, and the support tags reconstruct it only partially.

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.

Idle / micro-motionPose settleApproachDisrobeCaressEntryThrust (shallow) (characteristic)Thrust and holdGrind (rocking)Manual strokeRepositionClimax reactionAftermath

Camera moves that suit the geometry: Overhead descend, Arc (partial), Push in.

Also known asthe Tperpendicular side entry
Wikidata Q117314347

Related positions

Part of the Erotic Pose Catalog open dataset · CC BY 4.0 · keypoints are idealised COCO-17 templates.