【解説】ふたなり受け攻めコントロール（Illustrious-XL系）
Added 2025-07-03 11:00:00 +0000 UTC# 1.はじめに
この記事では、Illustrious-XL系でのふたなり (full-package futanari) の画像生成において、受け攻めをコントロールする方法を解説していきます。
なお、英語圏においてふたなりとニューハーフ (futa without pussy) はあまり区別されないようで、両方ともふたなりと表現されています。
ふたなりは受け攻め両方を担える為、未対応だと掛け算の前後（例：ふたなり×男性、男性×ふたなり）が安定しない傾向を感じます。
その為、この記事ではふたなりの受け攻めの役割を固定する方法を解説していきます。
なお、LoRAモデルで固定するアプローチはありますが、この記事ではそれを使用しない形でのアプローチを取っていきます。
例）
■男性の上のふたなり (futa_on_male) のLoRAモデル
https://civitai.com/search/models?sortBy=models_v9&query=futa_on_male
■小柄優位 (small_dom_big_sub) のLoRAモデル
https://civitai.com/search/models?sortBy=models_v9&query=small_dom_big_sub
関連記事としては次のものがありますが、この記事はそのバージョンアップ版にあたります。
■【解説】「ふたなり×男の娘」画像生成（Illustrious-XL系）
https://rarabeat.fanbox.cc/posts/8823939
【解説】「ふたなり×男の娘」画像生成（Illustrious-XL系）
# 1.はじめに この記事では、Illustrious-XL系の画像生成AIで、「ふたなり×男の娘」画像を生成する方法を解説していきます。 ただ、基本的には次の記事で解説した事の応用になります。 ■【解説】「ふたなり×男性」画像生成 https://rarabeat.fanbox.cc/posts/8741652 ■【Illustrious-XL系】NSFW男の娘画像生成 https://w...
# 2.前提条件
■WAI-NSFW-illustrious-SDXL - v14.0 [by WAI0731]
https://civitai.com/models/827184?modelVersionId=1761560
■hako-mikan/sd-webui-negpip
https://github.com/hako-mikan/sd-webui-negpip
# 3.生成例
## ①マスターベーション
### ①-1: オナニー
```
1other, 1boy, couple, futanari, futa with male,
side-by-side,
mutual masturbation, mutual handjob, penis grab,
spoken heart, motion lines, speed lines,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
### ①-2: 相互オナニー
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:-1),
mutual handjob, penis grab,
precum,
speed lines, motion lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
## ②ふたなり受け
### ②-1: 口淫
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, futa on male, male penetrated:-1),
oral, licking penis, tongue out, caressing testicles,
precum,
motion lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
### ②-2: アナル舐め
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, futa on male, male penetrated:1),
anilingus, tongue out,
anus, precum,
motion lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
### ②-3: 事前
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:-1),
imminent anal, cowgirl position, struggling, guided penetration, penis grab, leg grab, penises touching,
precum,
motion lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
### ②-4: 騎乗位
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:-1),
anal, cowgirl position, struggling, futanari masturbation,
precum,
speed lines, motion lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
### ②-5: 後背位
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:-1),
anal, doggystyle,
precum,
speed lines, motion lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
huge penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
### ②-6: 正常位
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:-1),
anal, missionary, happy sex,
cum in ass, handsfree ejaculation,
eye contact, thought bubble, cross-section,
speed lines, motion lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
## ③ふたなり攻め
### ③-1: 口淫
```
1other, 1boy, couple, futanari, futa with male, futa on male, (assertive female, femdom, male penetrated:1),
oral, licking penis, tongue out, caressing testicles,
precum,
motion lines, sound effects, cut-in, ass focus,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
### ③-2: アナル舐め
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:1),
anilingus, tongue out, handjob,
anus, precum,
motion lines, speed lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
### ③-3: 事前
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:1.1),
imminent anal, doggystyle, penis on ass,
precum,
motion lines, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
### ③-4: 騎乗位
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated, boy on top:1.1), (girl on top:-1.5),
anal, reverse cowgirl position, sitting on person,
precum, anal fluid,
motion lines, sound effects, stomach bulge, spoken exclamation mark, cut in, cross-section,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
### ③-5: 後背位
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:1),
anal, doggystyle,
precum,
speed lines, motion lines, motion blur, sound effects,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
### ③-6: 正常位
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:1),
anal, missionary, happy sex,
cum in ass, handsfree ejaculation, cum on penis, cum inflation, excessive cum,
spoken heart, cross-section, speed lines, motion lines, sound effects, screaming,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
## ④事後
### ④-1: ぽっかりアナル
```
1other, 1boy, couple, futanari, futa with male,
side-by-side, from below,
after anal, take your pick, on back,
gaping, anus, perineum,
cum in ass, handsfree ejaculation, cum on penis, cumdrip, excessive cum, cum string,
heavy breathing, trembling, motion lines,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
### ④-2: 尻ならべ
```
1other, 1boy, couple, futanari, futa with male,
side-by-side, looking back,
after anal, take your pick,
gaping, anus,
cum in ass, cumdrip,
heavy breathing, open mouth, sweat, spoken heart,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
huge penis, small penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, hair over eyes, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
# 4.解説
基本的な方針としては、ふたなり攻めの場合はふたなり優位を示すDanbooruタグを使用し、ふたなり受けの場合はそれらのタグに対して負の強調をしながら使用しています。
負の強調は、プロンプト上で「(タグ1, タグ2, ……:負の数値)」と書かれている箇所の事で、その箇所に書かれている内容を強く否定する効果を持ちます。拡張機能「NegPiP」を通してそれを使用している為、詳しくは下記ページの説明文を参照するのが良いです。
■sd-webui-negpip/README_jp.md at main · hako-mikan/sd-webui-negpip
https://github.com/hako-mikan/sd-webui-negpip/blob/main/README_jp.md
プロンプト上での具体的なポイントとしては、次のものが挙げられます。
## ①受け攻め両シチュで共通して、次のDanbooruタグを使用しています。
```
futanari
←ふたなり
futa with male
←ふたなりと男性
couple
←カップル
1other
←1人の性別不明人物 ※「1girl」（1人の女性）でも良いと思います。
1boy
←1人の男性
size difference
←体格差
height difference
←身長差
age difference
←年齢差
onee-<年齢タグS>
←オネ=/₃夕
mature female
←熟女
<年齢タグS>
←=/₃夕
penis size difference
←ペニスのサイズ差 ※構図上、片方の人物のペニスのみ描写される場合は除外。
huge penis
←巨根 ※男性側のペニスのみ描写される場合は除外。 「veiny penis」（血管の浮き出たペニス）の使用も可。
small penis
←小さいおちんちん ※ふたなり側のペニスのみ描写される場合は除外。「foreskin, phimosis」（包茎）の使用も可。
```
ふたなり×男性のカップルである事を提示した上で、その二人の間に体格差がある事を明示しています。これにより、各キャラクターの容姿の一貫性を補助しています。
## ②ふたなり優位を示すDanbooruタグとしては、次のものを用意しています。
```
futa on male
←ふたなり優位（男性の上のふたなり）
assertive female, femdom
←女性（っぽいキャラ）優位
male penetrated
←挿入される男性
```
これらのタグを使用する事で、ふたなり攻めの再現性を高められる印象です。
ただし、「futa on male」は"ふたなり優位"の意味合いと共に、"男性の上のふたなり"という位置関係の意味合いも持っているようです。その為、「futa on male」の使用にはやや注意です。
また、「anilingus」（アナル舐め）は舐めさせる方が優位と考えられますので、他のシーンとは逆に、負の強調を行っています。
加えて、SM的なシチュエーションを意図するのであれば、次のタグも使用できると思います。
```
dominatrix
←女王様
sadism
←サディズム
masochism
←マゾヒズム
```
補足として、逆アナルを意味するタグもあるのですが、あまり使われていないタグのようでした。（使用数が少ないタグは効果が薄い傾向があります）
```
pegging
←逆アナル
```
## ③ふたなり受けの場合は、ふたなり優位を示すDanbooruタグへの強調の正負を逆転させています。
ただし、「futa on male」を否定すると、「futa」（ふたなり）まで否定してしまうので、このタグの負の強調は避けています。
## ④ふたなり攻めの場合での騎乗位は、追加対応をしています。
ふたなり攻めの場合での騎乗位は、ふたなり優位でもふたなりの方が上の位置になりやすかったです。
その為、次のタグの強調により、位置関係を明確に示すようにしています。
```
girl on top
←上にいる女性 ※負の強調で使用する。
boy on top
←上にいる男性 ※正の強調で使用する。
```
加えて、小柄な人物を大柄な人物が上に乗せるような構図を意図して、次のタグも使用しました。
```
reverse cowgirl position
←騎乗位。ただし、通常の騎乗位が顔を向かい合わせる構図であるのに対して、背を向けるような構図を意味する。
sitting on person
←人の上に座る
```
# 5.おわりに
画像生成AIは、大量の画像データからパターンや構図を学び、それをもとに画像を生成します。ただし、AIが学習するのは視覚的な特徴だけではありません。その背後にある社会の価値観や、私たちが無意識に抱いているバイアスも反映されます。
例えば、「男女が登場し、どちらかが相手を抱き上げるシーン」を指示すると、多くの場合で男性が女性を抱き上げる構図になります。これは、そういったシチュエーションの画像が訓練データに多く含まれていた為であり、AIが世の中の多数派のイメージを再現している証拠です。
ただし、そこに「男性の方が=/₃夕で、女性の方が熟女」という前提を組み入れれば、違った構図になるだろうと推測できます。
このような特性を理解しておくと、AIで思い通りの画像を作るためのヒントになります。意図した構図やシチュエーションを得たい場合は、曖昧な指示ではなく、AIが再現する大衆心理に沿った明確な指定が必要です。
画像生成AIは、単なるツールではなく、社会の心理を映し出す鏡でもあります。その仕組みを知り、意識的に使うことで、より自由で創造的な表現が可能になります。
## おまけ素材画像
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:-1),
anal, doggystyle, mounting,
precum, anal fluid,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
small penis, huge penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
↓
```
1other, 1boy, couple, futanari, futa with male, (assertive female, femdom, male penetrated:-1),
anal, doggystyle, mounting,
looking back, leaning back, face-to-face,
cum in ass, handsfree ejaculation, cum overflow, cumdrip,
fucked silly,
height difference, size difference,
petite,
age difference,
onee-<年齢タグS>, mature female, <年齢タグS>,
penises, penis size difference,
small penis, huge penis, testicles,
yamato \(kancolle\), headgear, long hair, brown hair, pink eyes, red sailor collar, bottomless,
admiral \(kancolle\), peaked cap, short hair, black hair, naval uniform,
grey background, on bed,
masterpiece,best quality,amazing quality,
Negative prompt: bad quality,worst quality,worst detail,sketch,censor,
```
## おまけ動画
■git-ai-code/FramePack-eichi
https://github.com/git-ai-code/FramePack-eichi
```
High quality anime. A mature woman with long brown hair and pink eyes, a smaller youthful man with short black hair in a naval uniform, intense penetration, and stark size differences. The man mounts the woman vigorously from behind, his hips thrusting in a rhythm of raw desire. Her long hair sways with each powerful movement, emphasizing the force behind her actions. The woman grips the bedsheets tightly, her body reacting to the intense penetration. As the woman nears climax, her movements become more frenzied, her body tensing as she prepares to release. The man's small frame contrasts sharply with her larger, commanding presence, highlighting the sheer intensity of the act. Finally, she throws her head back, a surge of pleasure coursing through her as she ejaculates freely, her body convulsing with the force of her orgasm.
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High quality anime. A mature woman with long brown hair and pink eyes, a smaller youthful man with short black hair in a naval uniform, intense penetration, and stark size differences. The man mounts the woman vigorously from behind, his hips thrusting in a rhythm of raw desire. Her long hair sways with each powerful movement, emphasizing the force behind her actions. The woman grips the bedsheets tightly, her body reacting to the intense penetration. As the woman nears climax, her movements become more frenzied, her body tensing as she prepares to release. The man's small frame contrasts sharply with her larger, commanding presence, highlighting the sheer intensity of the act. Finally, he throws his head back, a surge of pleasure coursing through his as he ejaculates freely, his body convulsing with the force of his orgasm.
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（おわり）
