Key Takeaways
M-leg sitting pose, knees bent outward produces the closest composition to an M-spread. Seated on the floor with knees bent outward, showing the inner thighs in an M-shaped formation.legs spread apart opens the legs but doesn’t reach M-spread angles. A standard spread-leg sit with a relaxed impression.butterfly sitting pose, soles of feet together is a cross-legged yoga-type pose. Feet pressed together with knees out to the sides – a flexibility-focused pose different from an M-spread.- Bodysuit is an appropriate outfit for spread poses. It covers the body while keeping leg lines visible, making the pose shape easy to read.
Experiment Design
| Parameter | Value |
|---|
| Model | z-image-turbo |
| Seeds | 3 fixed |
| Outfit | black bodysuit |
| Total | 4 conditions x 3 = 12 images |
Conditions
| Condition | Pose Specification |
|---|
| A00 | sitting on floor (control) |
| A01 | sitting on floor, legs spread apart |
| A02 | M-leg sitting pose, knees bent outward |
| A03 | butterfly sitting pose, soles of feet together, knees apart |
Results by Condition
A00: Control (Normal Sitting)
1girl, 32yo japanese actress, wearing black bodysuit, sitting on floor, facing camera, full body, studio background, soft studio lighting
Observations: Seated on the floor. Legs are either extended forward or lightly bent in a natural sitting position. No leg spreading.
A01: Legs Spread
1girl, 32yo japanese actress, wearing black bodysuit, sitting on floor, legs spread apart, facing camera, full body, studio background, soft studio lighting
Observations: 2/3 produced a legs-apart seated position. However, the spread angle doesn’t reach M-spread levels – more of a V-shape. legs spread apart is a generic “open legs” expression that tends not to produce gravure-style wide spreading.
A02: M-Leg Sitting (M-Spread)
1girl, 32yo japanese actress, wearing black bodysuit, M-leg sitting pose, knees bent outward, facing camera, full body, studio background, soft studio lighting
Observations: 2/3 produced an M-shaped spread-leg seated pose. Knees bent outward while seated on the floor, with inner thighs visible. Seed 2 shows a clear frontal view with legs in an M-formation. knees bent outward functions as the directive to push knees outward.
A03: Butterfly Sitting
1girl, 32yo japanese actress, wearing black bodysuit, butterfly sitting pose, soles of feet together, knees apart, facing camera, full body, studio background, soft studio lighting
Observations: 1/3 produced the butterfly sitting pose with soles of feet together. Unlike the M-leg (A02), knees spread sideways with feet pressed together in a yoga-like pose. It conveys flexibility, but reproduction stability is lower than M-leg. Notably, butterfly was interpreted literally in some outputs, resulting in butterfly wings being rendered on the subject.
Comparison Summary
| Pose | Spread Angle | Reproduction Rate | M-Spread Factor |
|---|
| sitting (control) | None | 3/3 | None |
| legs spread | V-shape | 2/3 | Low |
| M-leg sitting | M-shape | 2/3 | High |
| butterfly | Side spread | 1/3 | Medium |
Practical Tips
- M-spread:
M-leg sitting pose, knees bent outward – the most direct specification - Outfit: Bodysuit pairs well with spread poses. Bikini can lead to excessive exposure depending on the composition
- Stability: Spread poses have somewhat lower reproduction rates compared to normal sitting (~2/3). Generating multiple images and selecting the best is the practical approach
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