【解説】逆アナル画像生成方法

1.はじめに

この記事では、逆アナル画像（男の娘 or ふたなり）の生成方法を解説します。

なお、プロンプトのみでのアプローチとなります。

一般的に、男性的なキャラと女性的なキャラとのアナルセックス画像を生成する時には、前者が攻めになりがちです。

ただ、後者が攻めのシチュもないわけではなく、それは「逆アナル」と呼ばれています。

そのシチュの画像生成を試してみました。

2.前提条件

■2.5D_Prony 【by ppkkmoon】

https://civitai.com/models/298707/25dprony?modelVersionId=335499

■[ponyXL] Hideri Kanzaki 神崎 ひでり || Blend S (ブレンド・S)【by Shippy】

https://civitai.com/models/288159?modelVersionId=324076

3.生成例

①見せ槍

'''

score_9, score_8_up, score_7_up, source_anime,

from below, pov, 1boy, josou seme,

presenting,

large penis, veiny penis, testicles, flat chest,

hideridef, otoko no ko, hair bow, black hairband,

completely nude,

evil grin,

indoors, wall

Negative prompt: score_6_up, score_5_up, score_4_up, female, woman, girl, she, text, watermark, low-quality, signature, moiré pattern, downsampling, aliasing, distorted, blurry, glossy, blur, jpeg artifacts, compression artifacts, poorly drawn, low-resolution, bad, distortion, twisted, excessive, exaggerated pose, exaggerated limbs, grainy, symmetrical, duplicate, error, pattern, beginner, pixelated, hyper, glitch, overexposed, high-contrast, bad-contrast, mosaic censorship

'''

②逆フェラ

'''

score_9, score_8_up, score_7_up, source_anime,

1girl, 1boy, futanari, futa on male, femdom, josou seme, oral, fellatio,

seiza, all fours, grabbing,

large penis, twitching penis, flat chest, cum in mouth,

hideridef, otoko no ko, hair bow, black hairband,

completely nude,

grin, speed lines, motion lines,

faceless muscular male, shaded face, brown hair,

on bed, wall

Negative prompt: score_6_up, score_5_up, score_4_up, female, woman, girl, she, text, watermark, low-quality, signature, moiré pattern, downsampling, aliasing, distorted, blurry, glossy, blur, jpeg artifacts, compression artifacts, poorly drawn, low-resolution, bad, distortion, twisted, excessive, exaggerated pose, exaggerated limbs, grainy, symmetrical, duplicate, error, pattern, beginner, pixelated, hyper, glitch, overexposed, high-contrast, bad-contrast, mosaic censorship

'''

③逆アナル1

'''

score_9, score_8_up, score_7_up, source_anime,

1girl, 1boy, pegging, futanari, futa on male, femdom, josou seme, anal,

doggystyle, all fours, cum in ass,

large penis, testicles, multiple penises, flat chest,

hideridef, otoko no ko, hair bow, black hairband,

completely nude,

ecstasy, heavy breathing, speed lines, motion lines, motion blur,

faceless muscular male, shaded face, brown hair,

on bed, wall

Negative prompt: score_6_up, score_5_up, score_4_up, female, woman, girl, she, text, watermark, low-quality, signature, moiré pattern, downsampling, aliasing, distorted, blurry, glossy, blur, jpeg artifacts, compression artifacts, poorly drawn, low-resolution, bad, distortion, twisted, excessive, exaggerated pose, exaggerated limbs, grainy, symmetrical, duplicate, error, pattern, beginner, pixelated, hyper, glitch, overexposed, high-contrast, bad-contrast, mosaic censorship

'''

④逆アナル2

'''

score_9, score_8_up, score_7_up, source_anime,

1girl, 1boy, pegging, futanari, futa on male, femdom, josou seme, anal,

doggystyle, bent over, hug from behind,

large penis, testicles, multiple penises, flat chest, cum in ass,

hideridef, otoko no ko, hair bow, black hairband,

completely nude,

ecstasy, heavy breathing, speed lines, motion lines, trembling,

faceless muscular male, shaded face, brown hair,

on bed, wall

Negative prompt: score_6_up, score_5_up, score_4_up, female, woman, girl, she, text, watermark, low-quality, signature, moiré pattern, downsampling, aliasing, distorted, blurry, glossy, blur, jpeg artifacts, compression artifacts, poorly drawn, low-resolution, bad, distortion, twisted, excessive, exaggerated pose, exaggerated limbs, grainy, symmetrical, duplicate, error, pattern, beginner, pixelated, hyper, glitch, overexposed, high-contrast, bad-contrast, mosaic censorship

'''

⑤事後

'''

score_9, score_8_up, score_7_up, source_anime,

1girl, 1boy, pegging, futanari, futa on male, femdom, josou seme, after anal, presenting, penis on ass,

from below, doggystyle, all fours, looking at viewer,

large penis, testicles, multiple penises, flat chest, cum in ass, ejaculation,

hideridef, otoko no ko, hair bow, black hairband,

completely nude,

afterglow, ecstasy, heavy breathing,

faceless muscular male, shaded face, brown hair,

on bed, wall

Negative prompt: score_6_up, score_5_up, score_4_up, female, woman, girl, she, text, watermark, low-quality, signature, moiré pattern, downsampling, aliasing, distorted, blurry, glossy, blur, jpeg artifacts, compression artifacts, poorly drawn, low-resolution, bad, distortion, twisted, excessive, exaggerated pose, exaggerated limbs, grainy, symmetrical, duplicate, error, pattern, beginner, pixelated, hyper, glitch, overexposed, high-contrast, bad-contrast, mosaic censorship

'''

4.解説

残念ながら「女装攻め」(josou seme)を意図するプロンプトは効きが悪いようなので、「ふたなり攻め」(futa on male)のプロンプトに対して「まな板」(flat chest)を適用するアプローチを取りました。

この時、重要となるタグは次のものです。

```

futanari

←ふたなり

futa on male

←ふたなり攻め

femdom

←女性優位

josou seme

←女装攻め

pegging

←逆アナル

flat chest

←まな板

```

そして、逆アナルシチュの場合は、受け側をモブにするために次のタグがオススメです。

```

shaded face

←影のかかった顔

```

注意点としては、肌の色が濃い方が竿役になりがちなので、「異人種間」(interracial)などのキーワードは成功率を下げていそうでした。

5.おわりに

男の娘ジャンルにおいて逆アナルはマイナーシチュですが、二回戦目にそのシチュを採用したりと、一回戦目より刺激を強くする手段ともなりえます。

また、マゾヒズム的なテーマとも相性が良く、男の娘とはジャンルがずれますが、ニューハーフやふたなりジャンルでは見かけることが多いです。

より強い刺激のシチュを求める場合は、採用してみてはいかがでしょうか。

（おわり）