> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pornx.co/llms.txt
> Use this file to discover all available pages before exploring further.

# LoRAs for anatomy fine-tuning

> Apply LoRA modifiers to fine-tune anatomy in PornX image generation, including trigger words, weight ranges, and model compatibility.

A LoRA (Low-Rank Adaptation) is a small model that runs on top of your chosen model and pushes the output toward a specific look. PornX currently has two LoRAs focused on anatomy accuracy.

## How to apply a LoRA

Add the trigger directly in your prompt: `<lora:NAME:WEIGHT>`

* **NAME** — the LoRA identifier (see each LoRA below)
* **WEIGHT** — how strongly the LoRA influences the output. Range: 0.1–1.0. Best results typically fall between 0.3 and 0.8.

Example: `<lora:64:0.6>, big breast, pink nipples` — applies Better Breast at 0.6 weight with supporting trigger words.

You can combine both LoRAs in one prompt. Keep total weight balanced — stacking two at 0.8 each tends to produce artifacts.

## Better Breast

Improves breast shape, size, and detail accuracy. Use trigger words from the table below alongside the LoRA tag for best results.

**Trigger:** `<lora:64:0.6>`

| Category     | Options                                                                         |
| ------------ | ------------------------------------------------------------------------------- |
| Breast Size  | flat breast, small breast, medium breast, big breast, fake breast, bimbo breast |
| Breast Form  | torpedo\_breast, saggy breast                                                   |
| Nipple Color | pink nipples, brown nipples                                                     |
| Nipple Style | normal\_nipples, big\_nipples, inverted\_nipples, puffy\_nipples                |
| Areola Size  | small areola, normal areola, big areola                                         |

## BetterCock

This LORA adding normal penis for the men and can be used as Futanari in Anime model

<Prompt description="`<lora:055:0.5>, erect penis`" icon="input-text" actions={["copy"]} />

Also you can create flaccid penis

<Prompt description="`flaccid penis, <lora:054:0.5>`" icon="input-text" actions={["copy"]} />

<CardGroup cols={2}>
  <Card title="Models" icon="m" href="/image-generation/models">
    Choose the base model before applying a LoRA.
  </Card>

  <Card title="Prompting Advanced" icon="text" href="/prompting/advanced">
    Weights, negatives, and token order.
  </Card>
</CardGroup>