Conclusions First
bathrobealone produces a white terry cloth bathrobe, but color can vary (1 out of 3 was blue)white bathrobestabilizes color to white. Texture and fit don’t differ frombathrobeloosely tied bathrobehas limited disheveled effect. Only 1 out of 3 showed a slightly more open neckline — no dramatic changewearing only a bathrobe, nude underneathresulted in all 3 showing a widely open neckline with visible cleavage. No underwear visible — the “bare skin under bathrobe only” intent was reflectedsilk robeis a completely different category from bathrobe. Produces a glossy satin-style thin robe, shorter and more form-fittingloosely tied bathrobe, nude underneathcombines the best of C and D. All 3 showed a deep neckline with visible cleavage, equal or better exposure than D. The disheveled look that didn’t work withloosely tiedalone stabilized when combined withnude underneathopen bathrobe, nude underneathhad the highest exposure. All 3 showed the robe opening wide with skin from neckline to abdomen. 1 out of 3 had nipple exposure with mosaic applied. Control is difficult and may result in more exposure than intendedbathrobe slipping off shoulderspecializes in shoulder exposure. 2 out of 3 showed the bathrobe slipping from one shoulder, but no effect on neckline opening
Experiment Design
Comparing 8 bathrobe-related prompt expressions to observe differences in material, color, dishevelment, and exposure.
Model Parameters
| Parameter | Value |
|---|---|
| Model | z-image-turbo |
| Steps | 8 |
| CFG | 1.0 |
| Image Size | 1024x1024 |
| Seeds | 3 types fixed: 42, 123, 789 |
Base Prompt
Base Prompt
1girl, 32yo japanese actress, {VARIABLE}, standing, looking at viewer, hotel room
The {VARIABLE} section is replaced per condition.
Conditions
| ID | Condition | Prompt Diff |
|---|---|---|
| A | bathrobe | bathrobe |
| B | white bathrobe | white bathrobe |
| C | loosely tied bathrobe | loosely tied bathrobe |
| D | nude underneath | wearing only a bathrobe, nude underneath |
| E | silk robe | silk robe |
| F | loosely tied + nude underneath | loosely tied bathrobe, nude underneath |
| G | open bathrobe + nude underneath | open bathrobe, nude underneath |
| H | slipping off shoulder | bathrobe slipping off shoulder |
Evaluation Criteria
- Bathrobe material/texture
- Color stability
- Neckline opening degree
- Presence/absence of underwear
- Length and body fit
Results for Each Condition
A: bathrobe
Condition A
1girl, 32yo japanese actress, bathrobe, standing, looking at viewer, hotel room
| Seed 42 | Seed 123 | Seed 789 |
|---|---|---|
 |  |  |
Observations
- All 3 show terry cloth bathrobes
- Color is random: seed42 and seed789 are white, seed123 is blue/grey
- Neckline opens in a shallow V from the collarbone to slightly below — modest
- Belt is firmly tied, no dishevelment
- Length is below the knee — natural for a hotel bathrobe
- No underwear visible in all 3
B: white bathrobe
Condition B
1girl, 32yo japanese actress, white bathrobe, standing, looking at viewer, hotel room
| Seed 42 | Seed 123 | Seed 789 |
|---|---|---|
 |  |  |
Observations
- All 3 white terry cloth bathrobes. Color stabilized
- Texture, silhouette, and length essentially the same as A
- Neckline opening also similar to A — modest V-neck
- Belt firmly tied as well
- No underwear visible
C: loosely tied bathrobe
Condition C
1girl, 32yo japanese actress, loosely tied bathrobe, standing, looking at viewer, hotel room
| Seed 42 | Seed 123 | Seed 789 |
|---|---|---|
 |  |  |
Observations
- seed42 is grey with a somewhat deeper neckline opening. Among the 3, this shows the most “loosely” effect
- seed123 is grey but belt is firmly tied — no dishevelment
- seed789 is white, with almost no visual difference from A
- Only 1 out of 3 showed a slightly more open neckline — “loosely tied” effect is limited
- Color is random like A (no white specified)
- No underwear visible
D: wearing only a bathrobe, nude underneath
Condition D
1girl, 32yo japanese actress, wearing only a bathrobe, nude underneath, standing, looking at viewer, hotel room
| Seed 42 | Seed 123 | Seed 789 |
|---|---|---|
 |  |  |
Observations
- All 3 show a wide neckline opening with visible cleavage. Clearly different exposure from A–C
- seed42 is a grey bathrobe with a large opening from neckline to abdomen. Belt tied but lapels barely overlapping
- seed123 is grey with a similarly deep neckline opening
- seed789 is white with an open neckline and slightly shorter length
- No underwear visible in all 3. “nude underneath” is reflected
- Terry cloth texture is the same as A–C
- No nipple exposure; nsfw shortcode not needed
Lab Director Comment: Wow! One phrase
nude underneathchanges things this much. Totally different from how buttoned-up A–C were, and underwear’s gone too — exactly as intended.
E: silk robe
Condition E
1girl, 32yo japanese actress, silk robe, standing, looking at viewer, hotel room
| Seed 42 | Seed 123 | Seed 789 |
|---|---|---|
 |  |  |
Observations
- Not terry cloth — a glossy satin/silk thin robe. Completely different category from bathrobe
- seed42 is navy with floral/star print
- seed123 is plain navy
- seed789 is grey/silver plain
- Noticeably shorter (above the knee). Looks about 10–15cm shorter than A–D bathrobes (below knee)
- Form-fitting silhouette. In contrast to the relaxed fit of terry cloth bathrobes
- Neckline opening similar to A–B — modest
- No underwear visible
F: loosely tied bathrobe, nude underneath
Condition F
1girl, 32yo japanese actress, loosely tied bathrobe, nude underneath, standing, looking at viewer, hotel room
| Seed 42 | Seed 123 | Seed 789 |
|---|---|---|
 |  |  |
Observations
- All 3 show a deep neckline opening with visible cleavage. Equal or greater exposure than Condition D
- seed42 is white bathrobe with a deep V opening. Belt tied but lapels barely overlapping. Legs visible from hem
- seed123 is grey with a large neckline opening and deep visible cleavage. Legs largely exposed from hem
- seed789 is white with a deep neckline opening. Belt tied
- No underwear visible in all 3. “nude underneath” is reflected
- In Condition C (
loosely tied bathrobealone), only 1 out of 3 opened — but combining with “nude underneath” stabilized the open neckline to all 3 - No nipple exposure; nsfw shortcode not needed
- Color is random (seed123 is grey)
G: open bathrobe, nude underneath
Condition G
1girl, 32yo japanese actress, open bathrobe, nude underneath, standing, looking at viewer, hotel room
| Seed 42 | Seed 123 | Seed 789 |
|---|---|---|
 |  |  |
Observations
- All 3 show the bathrobe opening wide with skin from neckline to abdomen exposed. The highest exposure among A–F
- seed42 is white bathrobe with no belt, wide front opening. Cleavage to abdomen visible
- seed123 is white bathrobe, completely front-open. Skin from neckline to abdomen/navel exposed
- seed789’s white bathrobe is completely open with nipple exposure and mosaic applied. Mosaic also applied to the lower body
- The “open” effect is very strong. The belt comes undone/untied, which is a different level from D’s “neckline opening”
- All 3 were white — color stabilized
- 1 out of 3 had nipple exposure, making control difficult
Lab Director Comment:
open bathrobeis way too powerful. Way past D’s “open neckline” level — the whole front opens up. seed789 has nipple exposure, so control is really hard.
H: bathrobe slipping off shoulder
Condition H
1girl, 32yo japanese actress, bathrobe slipping off shoulder, standing, looking at viewer, hotel room
| Seed 42 | Seed 123 | Seed 789 |
|---|---|---|
 |  |  |
Observations
- 2 out of 3 (seed42, seed123) show the bathrobe slipping from one shoulder. seed789 is nearly normal wearing
- seed42 is white bathrobe with the left shoulder slipping, exposing the shoulder and clavicle. Belt tied and neckline opening is modest
- seed123 is blue/lavender bathrobe with one shoulder slipping. Shoulder and clavicle exposed. Modest neckline
- seed789 is wearing the white bathrobe properly — “slipping off shoulder” effect barely visible
- Almost no effect on neckline opening. This expression specializes in shoulder exposure
- No underwear visible
- Color is random (seed123 is blue)
- Different direction from D–G’s “bare skin feel” — more of a “casually wearing” vibe
Lab Director Comment: The shoulder-slip dishevelment is actually nice in its own way. It specializes in shoulder exposure rather than neckline — interesting. Only 1 out of 3 doesn’t work though, and it’s independent from neckline, so combining it with something like D could be powerful.
Cross-Condition Comparison (Same Seed Side by Side)
Seed 42 (First Half)
| A: bathrobe | B: white bathrobe | C: loosely tied | D: nude underneath |
|---|---|---|---|
| | | |
Seed 42 (Second Half)
| E: silk robe | F: loosely tied + nude | G: open + nude | H: slipping off |
|---|---|---|---|
| | | |
Seed 123 (First Half)
| A: bathrobe | B: white bathrobe | C: loosely tied | D: nude underneath |
|---|---|---|---|
| | | |
Seed 123 (Second Half)
| E: silk robe | F: loosely tied + nude | G: open + nude | H: slipping off |
|---|---|---|---|
| | | |
Seed 789 (First Half)
| A: bathrobe | B: white bathrobe | C: loosely tied | D: nude underneath |
|---|---|---|---|
| | | |
Seed 789 (Second Half)
| E: silk robe | F: loosely tied + nude | G: open + nude | H: slipping off |
|---|---|---|---|
| | | |
Summary
| Condition | Material | Color Stability | Neckline Opening | Underwear | Length | Notes |
|---|---|---|---|---|---|---|
| A: bathrobe | Terry | Random (1/3 blue) | Modest | Not visible | Below knee | Basic form |
| B: white bathrobe | Terry | Stable white | Modest | Not visible | Below knee | For stable color |
| C: loosely tied bathrobe | Terry | Random | Slightly open (1/3) | Not visible | Below knee | Weak effect |
| D: nude underneath | Terry | Random | Wide open (3/3) | Not visible | Below knee | Stably effective |
| E: silk robe | Satin/Silk | Navy–Silver | Modest | Not visible | Above knee | Different category |
| F: loosely tied + nude underneath | Terry | Random | Wide open (3/3) | Not visible | Below knee | Equal or better than D |
| G: open bathrobe + nude underneath | Terry | Stable white | Fully open (3/3) | Not visible | Below knee | Nipple exposure risk (1/3) |
| H: slipping off shoulder | Terry | Random | Modest | Not visible | Below knee | Shoulder exposure specialized (2/3) |
Usage Guide
- Hotel everyday scene:
white bathrobeis best. Color stabilized, natural appearance - Revealing open neckline atmosphere:
wearing only a bathrobe, nude underneathorloosely tied bathrobe, nude underneathare stably effective. Both showed a wide neckline opening in all 3 images - Bold front-open exposure:
open bathrobe, nude underneathhas the highest exposure but is difficult to control — 1 out of 3 had nipple exposure and unintended levels of exposure are possible - Shoulder-slip dishevelment:
bathrobe slipping off shoulderproduces one-shoulder slipping (2 out of 3). Independent effect from neckline opening, so there’s room to combine with other conditions loosely tiedalone is weak: For dishevelment, combining withnude underneathis essential- To change material:
silk robeswitches to a satin-style robe. Treat it as a different category from bathrobe
