【解説】男の娘下半身クローズアップ画像の生成
Added 2025-06-05 11:00:00 +0000 UTC# 1.はじめに
この記事では、男の娘の下半身クローズアップ画像、特にアナルセックス時の画像を生成する方法を解説していきます。
画像生成AIにおけるキャラクター画像は、基本的に顔が見える構図のものになりやすいです。
これは、世にあるキャラクター画像の大半が、そのようになっている為だと思います。
通常はそれで良いのですが、複数の画像を使ってストーリーを作る時には、メリハリを付ける為にクローズアップの画像も欲しくなります。
その際、上半身のクローズアップ画像で口淫を強調するのは楽なのですが、下半身のクローズアップ画像でアナルを強調するのは一工夫が要ります。
そのため、このテーマでの解説をしていきます。
# 2.前提条件
■Hassaku XL (Illustrious) - v2.1fix [by Ikena]
https://civitai.com/models/140272?modelVersionId=1617798
# 3.生成例
## 【キャラ属性指定無し】
①penises touching
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, penis focus,
out of frame,
from above,
penises touching,
precum,
penis size difference, small penis, huge penis, testicles,
nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from above,
penises touching,
precum,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
②anal fingering
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, ass focus,
out of frame,
from below,
anal fingering, grabbing another's ass,
tucked penis, anal fluid,
small penis,
nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
③missionary
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, ass focus,
out of frame,
from above,
imminent anal,
precum,
penis size difference, small penis, huge penis, testicles,
nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from above,
imminent anal, missionary,
precum,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from above,
anal, missionary,
precum, anal fluid,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
④doggystyle
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from side,
imminent anal, doggystyle,
precum,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, ass focus,
out of frame,
from above,
imminent anal,
tucked penis, anal fluid, back,
penis size difference, small penis, huge penis, testicles,
nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from side,
anal, doggystyle,
precum, anal fluid,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
⑤cowgirl position
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from behind,
imminent anal, cowgirl position,
precum,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, ass focus,
out of frame,
from behind,
imminent anal, girl on top,
anal fluid, back,
huge penis, testicles,
nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from behind,
anal, cowgirl position,
precum,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
⑥reverse suspended congress
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
straight-on,
anal, reverse suspended congress,
cum in ass, handsfree ejaculation,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
straight-on,
after anal, reverse suspended congress,
gaping, anus,
cum in ass, handsfree ejaculation, cum on penis,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
completely nude,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
## 【キャラ属性指定有り】
①penises touching
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from above,
penises touching,
precum,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, cuffs, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, penis focus,
out of frame,
from above,
penises touching,
precum,
penis size difference, small penis, huge penis, testicles,
nude,
interracial,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
②missionary
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, penis focus,
out of frame,
from above,
imminent anal, missionary,
precum,
penis size difference, small penis, huge penis, testicles,
nude,
interracial,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from above,
imminent anal, missionary,
precum,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from above,
anal, missionary,
precum, anal fluid,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
③doggystyle
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from side,
imminent anal, doggystyle,
precum,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, ass focus,
out of frame,
from above,
imminent anal,
tucked penis, anal fluid, back,
penis size difference, small penis, huge penis, testicles,
nude,
interracial,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from side,
anal, doggystyle,
precum, anal fluid,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
④cowgirl position
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, ass focus,
out of frame,
from behind,
imminent anal, girl on top,
anal fluid, back,
huge penis, testicles,
nude,
interracial,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from behind,
imminent anal, cowgirl position,
precum,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
from behind,
anal, cowgirl position,
precum, anal fluid,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
⑤reverse suspended congress
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
straight-on,
anal, reverse suspended congress,
cum in ass, handsfree ejaculation,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
lower body, head out of frame, out of frame,
straight-on,
after anal, reverse suspended congress,
gaping, anus,
cum in ass, handsfree ejaculation, cum on penis,
interracial,
penis size difference, small penis, huge penis, testicles,
size difference, petite,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, hetero, pussy, vaginal, vagina, cameltoe, breasts, female, woman, girl, she, uterus, cervix, impregnation
```
⑥anal fingering
```
2boys, bridget \(guilty gear\), otoko no ko, yaoi, masterpiece, ultra-detailed,
close-up, ass focus,
out of frame,
from below,
after anal, anal fingering, grabbing another's ass,
anus, perineum,
tucked penis, cumdrip, handsfree ejaculation, cum on hands,
interracial,
small penis, testicles,
clothed female nude male,
bike shorts under skirt, torn bike shorts, white shirt, open jacket,
bed sheet, white background
Negative prompt: worst quality, bad quality, simple background, 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、次のものでプロンプトを組んでいます。
## ①まずは最低限のシチュエーションのみ示します。
```
2boys
←2人の男性
otoko no ko
←男の娘
yaoi
←BL（男の娘ジャンル含む）
```
## ②顔が見えない下半身の構図と示します。
```
close-up
←クローズアップ
penis focus
←ペニスにフォーカス
ass focus
←お尻にフォーカス
lower body
←下半身
head out of frame
←頭がフレーム外
out of frame
←フレーム外
```
※SDXL系では、「faceless」（顔の無い）は物理的に顔が無い様子を意味しがちなので、今回の用途では使用していません。
## ③キャラクター間の差を示す事で、一貫性を強めます。
```
penis size difference, small penis, huge penis
←ペニスのサイズ差、小さいペニス、巨大なペニス
size difference, petite
←サイズ差、小柄
```
オプションで次のような差も含めます。
```
interracial
←異人種間
clothed female nude male
←着衣の女性、裸の男性
```
## ④アングルを指定する事で、破綻しづらくします。（下半身のみなのは特殊な構図なので、人体解剖学的破綻が発生しやすいようです。そのため、プロンプトで補助しています）
```
straight-on
←正面
from above
←上から
from below
←下から
from side
←横から
from behind
←後ろから
```
## ⑤上半身の要素（例：nipples ←乳首）は、なるべくプロンプトに含めない。逆に、キャラ属性指定の場合は、一貫性の為に下半身画像に写り込む要素（例：torn bike shorts ←破れたバイクショーツ）を含める。例外的に、上半身の要素でも下半身画像に写り込む可能性が高いもの（例：open jacket ←開かれたジャケット）も、一貫性の為に含める。
# 5.おわりに
顔が見えないのは、キャラクターの表情（感情）を理解しづらくなるので、そこはデメリットです。
ただ、結合部に描画面積を割くことにより、より肉感を感じられる描写になっており、それはメリットです。
画像生成AIにおける作品群は、pixivランキング（R-18、AI生成）を見る限り、複数枚の画像で物語るストーリー形式のものが多いです。
その際、全身画像・上半身クローズアップ画像のみではなく、下半身クローズアップ画像もあれば、メリハリ、特に挿入のインパクトを表現しやすくなります。
そのようなワンポイントを、試してみませんか。
0423_234753_Interpolate4_00001
```
This interracial couple anal sex scene focuses on the lower half of the body.
The nude black man below is sliding his penis in and out of the anus of the white woman above.
The white woman above is wearing torn shorts, and her penis is bobbing and swaying.
After ejaculation, white fluid is dripping from the penis and anus.
```
（おわり）
